CN103308419A - Method for testing content of barium sulfate for negative plate of storage battery - Google Patents
Method for testing content of barium sulfate for negative plate of storage battery Download PDFInfo
- Publication number
- CN103308419A CN103308419A CN2013102625258A CN201310262525A CN103308419A CN 103308419 A CN103308419 A CN 103308419A CN 2013102625258 A CN2013102625258 A CN 2013102625258A CN 201310262525 A CN201310262525 A CN 201310262525A CN 103308419 A CN103308419 A CN 103308419A
- Authority
- CN
- China
- Prior art keywords
- hydrochloric acid
- filtrates
- barium sulfate
- testing
- minutes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 title abstract description 5
- 239000000706 filtrate Substances 0.000 claims abstract description 30
- 238000010998 test method Methods 0.000 claims abstract description 14
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 40
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 28
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims description 16
- 229910001626 barium chloride Inorganic materials 0.000 claims description 16
- 239000013049 sediment Substances 0.000 claims description 12
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000001354 calcination Methods 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000006228 supernatant Substances 0.000 claims description 8
- 241000370738 Chlorion Species 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 claims description 6
- 229940012189 methyl orange Drugs 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- 238000004445 quantitative analysis Methods 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 101100489867 Mus musculus Got2 gene Proteins 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract description 5
- 238000001556 precipitation Methods 0.000 abstract description 3
- 239000006210 lotion Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 150000001450 anions Chemical class 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 6
- -1 anion sulfate Chemical class 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000004380 ashing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 150000005837 radical ions Chemical class 0.000 description 2
- 239000002671 adjuvant Substances 0.000 description 1
- 229910001422 barium ion Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- AMNSWIGOPDBSIE-UHFFFAOYSA-H indium(3+);tricarbonate Chemical compound [In+3].[In+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O AMNSWIGOPDBSIE-UHFFFAOYSA-H 0.000 description 1
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a method for testing the content of barium sulfate for a negative plate of a storage battery. By taking anion sulfate ions of a filtrate as invariant, the content of the barium sulfate is calculated in a constant manner, and the method is different from the existing test method with the idea in which solids are placed on filter paper, lotion is used for washing and the precipitation operation is performed. The method is simple and convenient, easy to learn, and capable of reducing the loss of the barium sulfate and improving the accuracy of barium sulfate content tests.
Description
Technical field
The present invention relates to accumulator production field, be specifically related to a kind of battery terminal negative utmost point barium sulfate content method of testing.
Background technology
Barium sulphate, molecular formula are BaSO4, white crystal, and 1580 ℃ of fusing points are insoluble in water and acid, can be used as paint, printing ink, rubber, plastics industry and make filler, and the filling agent of para tape also is used for pigment, pottery, accumulator, enamel, in the industry such as glass and spices.
Barium sulphate as battery terminal negative lead plaster adjuvant, has the lattice parameter approximate with lead sulfate in accumulator, be same eutectic substance, plays the effect of postponing passivation and preventing plumbous surface area shrinkage in charge and discharge process.Traditional barium sulfate content method of testing is according to GB/T 2899-2008, this method is take barium ion as invariant, and the barium sulphate dissolving is precipitated again, and process is more loaded down with trivial details, partial loss is arranged in the operating process unavoidably, cause the barium sulfate content that tests out more on the low side than actual content.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of accumulator negative plate barium sulfate content method of testing, take the anion sulfate acid radical ion as invariant, the content of constant calculating barium sulphate, method of testing is easy, easy operating, improves the order of accuarcy of test barium sulfate content.
The present invention is achieved through the following technical solutions:
A kind of accumulator negative plate barium sulfate content method of testing, the method may further comprise the steps: the sample that takes by weighing quality and be M1 is coated in the natrium carbonicum calcinatum and potassium carbonate mixtures that mass ratio is 1:1～3, in 800 ℃ ± 20 ℃ lower meltings 40～100 minutes, taking-up is cooled to room temperature, then soaking to melt with 50～90 ℃ hot water makes it fully loose, the filtration supernatant liquor is continued to employ, fully wash insolubles with 40～70 ℃ 2%～5% hot sodium carbonate liquor again, till the sulfate radical-free ion, discard filter residue and leave and take whole filtrates to the insolubles; In filtrate, added in the pure 1+1 of quantitative analysis～3 hydrochloric acid solutions and sodium carbonate, after heating is boiled 2 minutes, stir lower 5%～20% barium chloride solution that at the uniform velocity drips, boiling water bath kept 1～3 hour, cooling, filter, sediment with 50～90 ℃ hot wash extremely without till the chlorion; Sediment in 600 ℃ ± 20 ℃ lower calcinations to quality constant weight M2, is recorded barium sulfate content in massfraction X, be calculated as follows: X=M2/M1 * 100%.
The further improvement project of the present invention is,
Described usefulness 2%～5% sodium carbonate liquor fully washs insolubles, the method of inspection to the insolubles till the sulfate radical-free ion is, get 2 milliliters of filtrates, add successively 2 1+1～3 hydrochloric acid solutions and 0.5 milliliter of 5～20% barium chloride solution, leave standstill 10 minutes rear filtrates and still keep transparent.
The present invention further improvement project is, describedly added in the filtrate in the pure 1+1 hydrochloric acid solution of quantitative analysis and the sodium carbonate step comprises and drips 2～3 of 0.5%～1% methyl orange indicators first in filtrate, and added again to analyze and added again 2 milliliters of the pure 1+1 of component analysis～3 hydrochloric acid solutions after pure 1+1～3 hydrochloric acid solution neutralization filtrates redden.
The present invention further improvement project is, described sediment to without the method for inspection till the chlorion being, is got 2 milliliters of filtrates with hot wash, adds 0.5 milliliter of 1%～3% liquor argenti nitratis ophthalmicus, leaves standstill that solution still keeps transparent after 10 minutes.
The present invention further improvement project is, 5%～20% barium chloride solution process that at the uniform velocity drips under the described stirring is, dropwise adds 5%～20% barium chloride solution, leave standstill a period of time after, in supernatant liquor, add again 1-2 and drip, produce without muddy, stop dripping.
The present invention further improvement project is that described filtration step adopts at a slow speed quantitative filter paper filtration.
The present invention further improvement project is that described filter paper and sediment are with putting calcination.
The present invention compared with prior art has following obvious advantage:
One, existing detection method is to get solid on the filter paper, and with the washing lotion washing, more loaded down with trivial details, the present invention gets filtrate, and take the anion sulfate acid radical ion as invariant, the content of constant calculating barium sulphate has changed a kind of thinking of precipitation, is easy to grasp.
Two, existing detection method need to be with six dissolution precipitations of (1+1) hydrochloric acid of 30ml heat, and more loaded down with trivial details, the present invention only need add excessive (1+1) hydrochloric acid, in and sodium carbonate, simplified step, reduced the loss of barium sulphate, make the result more accurate.
Embodiment
Embodiment 1
The reagent preparation
Hydrochloric acid (density is 1.18g/ml): 1+1
Sodium carbonate liquor: 2% (in mass ratio preparation)
Barium chloride solution: 10%(prepares in mass ratio)
Methyl orange indicator: 0.5% (in mass ratio preparation)
Molten mixture: 2g natrium carbonicum calcinatum+2g sal tartari
Liquor argenti nitratis ophthalmicus: 2%(prepares in mass ratio)
Take by weighing approximately the sample of drying of 1g, be accurate to 0.0002g, place the platinum crucible that adds the 4g molten mixture, then on it, build again the 4g molten mixture, crucible is placed in the high temperature furnace, in 800 ℃ ± 20 ℃ lower meltings 40 minutes, take out cooling; , soak and melt with 100 milliliters～150 milliliters 80 ℃ of hot water in whole white transfer of melt to 250 ml beakers in the crucible with the glass bar that wraps rubber tip, heating is boiled to fused mass loose.Leave standstill a moment, first supernatant liquor is filtered with quantitative filter paper at a slow speed and to continue to employ, then use 70 ℃ natrium carbonicum calcinatum solution washing insolubles, wash to the insolubles the (method of inspection: get 2 milliliters of filtrates till the sulfate radical-free, add 2 hydrochloric acid solutions and 0.5 milliliter of barium chloride solution, solution should keep transparent after 10 minutes), discard filter residue and leave and take whole filtrates; In filtrate, add 2～3 methyl orange indicators, with (1+1) hydrochloric acid solution neutralization filtrate, after reddening, filtrate adds again 2 milliliters of excessive (1+1) hydrochloric acid solutions, boiled 2 minutes in heating, under constantly stirring, add 20 milliliters of barium chloride solutions with even speed, after leaving standstill a period of time, in supernatant liquor, add again 1-2 and drip barium chloride, produce without muddy, stop dripping, reaction is finished, then beaker is placed on the boiling water bath and kept 2 hours, filter with quantitative filter paper at a slow speed after the cooling, sediment with 70 ℃ of hot washes extremely without (method of inspection is got two milliliters of filtrates till the chlorion, add 0.5 milliliter of liquor argenti nitratis ophthalmicus, solution should keep transparent after 10 minutes).Place the porcelain of pre-burn to do in the pot together with filter paper sediment, dry, ashing, and in high-temperature electric resistance furnace with 600 ℃ ± 20 ℃ lower calcinations to constant mass 0.9795g.
Result's expression and calculating:
Barium sulfate content is in massfraction X, and numerical value represents with %, is calculated as follows:
X=M2/M1×100%
=0.9795/1×100%=97.95%
In the formula: M2 is the barium sulphate quality after the calcination, the g of unit.
M1 is the quality of sample, the g of unit.
Embodiment 2
The reagent preparation
Hydrochloric acid (density is 1.19g/ml): 1+3
Sodium carbonate liquor: 5% (in mass ratio preparation)
Barium chloride solution: 20%(prepares in mass ratio)
Methyl orange indicator: 1% (in mass ratio preparation)
Molten mixture: 2g natrium carbonicum calcinatum+3g sal tartari
Liquor argenti nitratis ophthalmicus: 3%(prepares in mass ratio)
Take by weighing approximately the sample of drying of 1.5g, be accurate to 0.0002g, place the platinum crucible that adds the 4g molten mixture, then on it, build again the 4g molten mixture, crucible is placed in the high temperature furnace, in 800 ℃ ± 20 ℃ lower meltings 40 minutes, take out cooling; , soak and melt with 100 milliliters～150 milliliters 80 ℃ of hot water in whole white transfer of melt to 250 ml beakers in the crucible with the glass bar that wraps rubber tip, heating is boiled to fused mass loose.Leave standstill a moment, first supernatant liquor is filtered with quantitative filter paper at a slow speed and to continue to employ, then use 70 ℃ natrium carbonicum calcinatum solution washing insolubles, wash to the insolubles the (method of inspection: get 2 milliliters of filtrates till the sulfate radical-free, add 2 hydrochloric acid solutions and 0.5 milliliter of barium chloride solution, solution should keep transparent after 10 minutes), discard filter residue and leave and take whole filtrates; In filtrate, add 2～3 methyl orange indicators, with (1+1) hydrochloric acid solution neutralization filtrate, after reddening, filtrate adds again 2 milliliters of excessive (1+1) hydrochloric acid solutions, boiled 2 minutes in heating, under constantly stirring, add 20 milliliters of barium chloride solutions with even speed, after leaving standstill a period of time, in supernatant liquor, add again 1-2 and drip barium chloride, produce without muddy, stop dripping, reaction is finished, then beaker is placed on the boiling water bath and kept 2 hours, filter with quantitative filter paper at a slow speed after the cooling, sediment with 70 ℃ of hot washes extremely without (method of inspection is got two milliliters of filtrates till the chlorion, add 0.5 milliliter of liquor argenti nitratis ophthalmicus, solution should keep transparent after 10 minutes).Place the porcelain of pre-burn to do in the pot together with filter paper sediment, dry, ashing, and in high-temperature electric resistance furnace with 600 ℃ ± 20 ℃ lower calcinations to constant mass 1.4745g.
Result's expression and calculating:
Barium sulfate content is in massfraction X, and numerical value represents with %, is calculated as follows:
X=M2/M1×100%
=1.4745/1.5×100%=98.3%
In the formula: M2 is the barium sulphate quality after the calcination, the g of unit.
M1 is the quality of sample, the g of unit.
Claims (7)
1. accumulator negative plate barium sulfate content method of testing, it is characterized in that, the method may further comprise the steps: the sample that takes by weighing quality and be M1 is coated in the natrium carbonicum calcinatum and potassium carbonate mixtures that mass ratio is 1:1～3, in 800 ℃ ± 20 ℃ lower meltings 40～100 minutes, taking-up is cooled to room temperature, then soaking to melt with 50～90 ℃ hot water makes it fully loose, the filtration supernatant liquor is continued to employ, fully wash insolubles with 40～70 ℃ 2%～5% hot sodium carbonate liquor again, till the sulfate radical-free ion, discard filter residue and leave and take whole filtrates to the insolubles; In filtrate, added in the pure 1+1 of quantitative analysis～3 hydrochloric acid solutions and sodium carbonate, after heating is boiled 2 minutes, stir lower 5%～20% barium chloride solution that at the uniform velocity drips, boiling water bath kept 1～3 hour, cooling, filter, sediment with 50～90 ℃ hot wash extremely without till the chlorion; Sediment in 600 ℃ ± 20 ℃ lower calcinations to quality constant weight M2, is recorded barium sulfate content in massfraction X, be calculated as follows: X=M2/M1 * 100%.
2.
. method of testing according to claim 1, it is characterized in that: described usefulness 2%～5% sodium carbonate liquor fully washs insolubles, the method of inspection to the insolubles till the sulfate radical-free ion is, get 2 milliliters of filtrates, add successively 2 1+1～3 hydrochloric acid solutions and 0.5 milliliter of 5～20% barium chloride solution, leave standstill 10 minutes rear filtrates and still keep transparent.
3. method of testing according to claim 1, it is characterized in that: describedly added in the filtrate in the pure 1+1 hydrochloric acid solution of quantitative analysis and the sodium carbonate step comprises and drips 2～3 of 0.5%～1% methyl orange indicators first in filtrate, and added again to analyze and added again 2 milliliters of the pure 1+1 of component analysis～3 hydrochloric acid solutions after pure 1+1～3 hydrochloric acid solution neutralization filtrates redden.
4. method of testing according to claim 1 is characterized in that: described sediment to without the method for inspection till the chlorion being, is got 2 milliliters of filtrates with hot wash, adds 0.5 milliliter of 1%～3% liquor argenti nitratis ophthalmicus, leaves standstill that solution still keeps transparent after 10 minutes.
5. according to claim 1 described method of testing, it is characterized in that: 5%～20% barium chloride solution process that at the uniform velocity drips under the described stirring is dropwise to add 5%～20% barium chloride solution, after leaving standstill a period of time, in supernatant liquor, add again 1-2 and drip, produce without muddy, stop dripping.
6. method of testing according to claim 1 is characterized in that: described filtration step adopts at a slow speed that quantitative filter paper filters.
7. method of testing according to claim 6 is characterized in that: described filter paper and sediment are with putting calcination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102625258A CN103308419A (en) | 2013-06-27 | 2013-06-27 | Method for testing content of barium sulfate for negative plate of storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102625258A CN103308419A (en) | 2013-06-27 | 2013-06-27 | Method for testing content of barium sulfate for negative plate of storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103308419A true CN103308419A (en) | 2013-09-18 |
Family
ID=49133880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102625258A Pending CN103308419A (en) | 2013-06-27 | 2013-06-27 | Method for testing content of barium sulfate for negative plate of storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103308419A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237059A (en) * | 2014-09-25 | 2014-12-24 | 武汉钢铁(集团)公司 | Determination method of sulfate radical content in chromium plating solution |
| CN105987900A (en) * | 2015-01-27 | 2016-10-05 | 张家港市国泰华荣化工新材料有限公司 | Detection method of sulfate ion in electrolyte used for lithium ion battery |
| CN106018160A (en) * | 2016-06-24 | 2016-10-12 | 安徽创新检测技术有限公司 | Method for measuring content of water-soluble and acid-soluble sulfate in soil |
| CN111678835A (en) * | 2020-06-22 | 2020-09-18 | 浙江天能电池(江苏)有限公司 | Method for measuring content of silicon dioxide in silica sol for storage battery |
| CN113740199A (en) * | 2021-08-30 | 2021-12-03 | 承德建龙特殊钢有限公司 | Method for measuring sulfur content in sulfur cored wire |
| CN114112770A (en) * | 2021-11-17 | 2022-03-01 | 超威电源集团有限公司 | Method for detecting uniformity of lead paste of negative electrode of lead-acid storage battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252937A (en) * | 2011-05-08 | 2011-11-23 | 南昌航空大学 | Analysis method for sodium sulfide in aluminum alloy corrosion processing solution |
| CN102323179A (en) * | 2011-08-29 | 2012-01-18 | 山西太钢不锈钢股份有限公司 | Method for detecting sulfur dioxide in desulfurized gypsum |
-
2013
- 2013-06-27 CN CN2013102625258A patent/CN103308419A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252937A (en) * | 2011-05-08 | 2011-11-23 | 南昌航空大学 | Analysis method for sodium sulfide in aluminum alloy corrosion processing solution |
| CN102323179A (en) * | 2011-08-29 | 2012-01-18 | 山西太钢不锈钢股份有限公司 | Method for detecting sulfur dioxide in desulfurized gypsum |
Non-Patent Citations (2)
| Title |
|---|
| 郑桂林等: "《负极活性物质中硫酸钡测定方法的探讨》", 《蓄电池》, 28 February 2009 (2009-02-28) * |
| 黎志坚等: "《中华人民共和国国家标准 氟化镁化学分析方法》", 9 June 2008, article "《第8部分：硫酸根含量的测定 硫酸钡重量法》" * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237059A (en) * | 2014-09-25 | 2014-12-24 | 武汉钢铁(集团)公司 | Determination method of sulfate radical content in chromium plating solution |
| CN105987900A (en) * | 2015-01-27 | 2016-10-05 | 张家港市国泰华荣化工新材料有限公司 | Detection method of sulfate ion in electrolyte used for lithium ion battery |
| CN105987900B (en) * | 2015-01-27 | 2019-01-29 | 张家港市国泰华荣化工新材料有限公司 | The measuring method of sulfate ion in a kind of electrolyte for lithium ion battery |
| CN106018160A (en) * | 2016-06-24 | 2016-10-12 | 安徽创新检测技术有限公司 | Method for measuring content of water-soluble and acid-soluble sulfate in soil |
| CN111678835A (en) * | 2020-06-22 | 2020-09-18 | 浙江天能电池(江苏)有限公司 | Method for measuring content of silicon dioxide in silica sol for storage battery |
| CN113740199A (en) * | 2021-08-30 | 2021-12-03 | 承德建龙特殊钢有限公司 | Method for measuring sulfur content in sulfur cored wire |
| CN114112770A (en) * | 2021-11-17 | 2022-03-01 | 超威电源集团有限公司 | Method for detecting uniformity of lead paste of negative electrode of lead-acid storage battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103308419A (en) | Method for testing content of barium sulfate for negative plate of storage battery | |
| CN101344489B (en) | Method for measuring calcium constituent in silicon aluminum calcium barium alloy | |
| CN102207475B (en) | Metal alloy XRF spectrometry utilizing new sample preparation technology | |
| CN103033550A (en) | Method for combined determination of total calcium, calcium sulfate and calcium sulfite in desulfurized fly ash | |
| CN105527275B (en) | The assay method of barium sulfate content in a kind of lead-acid accumulator lead plaster | |
| CN102564890B (en) | Method for detecting content of sulfur trioxide in gypsum | |
| CN104034722B (en) | Content of material assay method in a kind of complex silicon carbide | |
| CN104131161B (en) | A kind of calcification solvable vanadium method of grog sulfuric acid to leach and solvable vanadium and roasting conversion rate assay method | |
| CN103344636A (en) | Method for determination of aluminum and alumina in steel slag | |
| CN105540596A (en) | Method for preparing silicon dioxide from high-silicon and high-iron fly ash | |
| CN109809440A (en) | The method for preparing high-purity lithium chloride, high-purity lithium formate and high-purity lithium carbonate | |
| CN102408128A (en) | An additive for removing trace iron during hydrolysis of titanium sulfate solution | |
| CN108776111A (en) | Method for testing substitution degree of sodium carboxymethylcellulose for lithium ion battery | |
| CN105954261A (en) | Method for determining contents of silicon dioxide, aluminum sesquioxide and magnesium oxide in carbide slag | |
| CN105784696A (en) | Method for analyzing and measuring sulfur of all valence states in sodium aluminate solution | |
| CN105548149A (en) | Method for measuring purity of barium sulfate for lead-acid storage battery | |
| CN104111207B (en) | The content assaying method of activated silica in a kind of bauxite | |
| CN102744086A (en) | Preparation method of ZrO2-TiO2/SO42-solid acid catalyst | |
| CN104215634A (en) | Method for determining content of tin in tungsten concentrate | |
| CN100386617C (en) | A kind of determination method of aluminum oxide in aluminum fluoride | |
| CN109211712B (en) | Method for measuring water content of boric anhydride | |
| CN103760055A (en) | Method for measuring silver content in silver slurry | |
| CN108918322A (en) | The detection method of impurity sodium salt in a kind of NaHS product | |
| CN115901921A (en) | A melting sample method for detecting multiple elements in iron ore by ICP | |
| CN100367025C (en) | A kind of assay method of aluminum oxide in cryolite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130918 |