CN1080398A - Softened water hardness indicating plate - Google Patents
Softened water hardness indicating plate Download PDFInfo
- Publication number
- CN1080398A CN1080398A CN 93104871 CN93104871A CN1080398A CN 1080398 A CN1080398 A CN 1080398A CN 93104871 CN93104871 CN 93104871 CN 93104871 A CN93104871 A CN 93104871A CN 1080398 A CN1080398 A CN 1080398A
- Authority
- CN
- China
- Prior art keywords
- display piece
- softened water
- water hardness
- edta
- indicating plate
- 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.)
- Granted
Links
Landscapes
- Medicinal Preparation (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The present invention relates to a kind of display piece of measuring softened water hardness, be used for low-pressure boiler, the mensuration of boiler for domestic softened water hardness.Display piece of the present invention is formed and consumption (milligram meter) is: disodium ethylene diamine tetraacetate (EDTA) 1.0-2.0, sodium tetraborate 100-200 for every, natrium carbonicum calcinatum 20-60, eriochrome black T 0.1-1.5, oxammonium hydrochloride 2-8, soluble starch 40-120, distilled water 0.05-0.1.This display piece has replaced the EDTA compleximetry, has simple, easy to use, effective, the low cost and other advantages of making, has promotional value widely.
Description
The present invention relates to a kind of display piece of measuring softened water hardness, be used for the mensuration of low-pressure boiler, boiler for domestic softened water hardness.
Low-pressure boiler, boiler for domestic softened water hardness are measured, usually all be to adopt disodium ethylene diamine tetraacetate (EDTA) compleximetry, this method will have special sampling personnel timing sampling assay, and the used standard solution in laboratory (EDTA standard solution) will be through preparation and demarcation, will there be cover instrument, equipment and an a series of chemical reagent in the laboratory, also will have the special messenger to be responsible for.By the complexometry analysis, calculate the size of softened water hardness.It is frequent so not only to measure number of times, consume reagent, and speed is slow, efficient is low, complicated operating process, and expense is also high.Under normal circumstances at least every two hours get sample one time, sample of every determination and analysis is wanted about 10 fens kinds, also will increase the sampling number of times when closing on when losing efficacy, and brings inconvenience to work like this.
The objective of the invention is to overcome the shortcoming of above-mentioned prior art with not enough, adopt EDTA complexometry principle, required reagent is made tablet with carrier, directly add in the sample of required mensuration, show by the simple color of solid display piece whether the hardness of concluding soft water is qualified.It has replaced traditional chemical complexing titration method, has to make advantages such as simple, easy to use, effective.
The objective of the invention is to realize by following technical proposal, measuring softened water hardness indicating plate is according to EDTA complexometry principle, based on national regulation softened water hardness index≤0.03mg-N/e, following each component and amount ranges are mixed with distilled water, and with the method for common film-making agent: granulation-oven dry-compressing tablet promptly obtains softened water hardness indicating plate of the present invention.Every combination and consumption (milligram meter) are as follows:
Disodium ethylene diamine tetraacetate (DETA) 1.0-2.0
Sodium tetraborate 100-200
Natrium carbonicum calcinatum 20-60
Eriochrome black T 0.1-1.5
Oxammonium hydrochloride 2-8
Soluble starch (carrier) 40-120
Distilled water (carrier) 0.05-0.1
This display piece component optimum amount is as follows:
Disodium ethylene diamine tetraacetate 1.5-2.0
Sodium tetraborate 120-150
Natrium carbonicum calcinatum 40-45
Eriochrome black T 0.5-1.0
Oxammonium hydrochloride 5-7
Soluble starch 60-80
Distilled water 0.06-0.08
Owing to adopted technique scheme, made the present invention compared with the prior art have following advantage and effect:
1. replaced EDTA complexometric titration softened water hardness, saved the preparation and the calibration process of standard solution, buffer solution, indicator, promptly human-saving, material resources are saved financial resources again.
2. make simple, easy to use, can be at any time sample analysis at the scene, local measurement, effective, high efficiency, cost are low.
3. applied range has promotional value widely.
Below in conjunction with embodiment, display piece of the present invention is further described:
Contain the indicator eriochrome black T in the display piece of the present invention, Ca in adding water sample
++, Mg
++With its generation kinetically unstable complex, its reaction is:
HI in the formula
〓Represent the indicator negative ion.
The eriochrome black T solid reagent is Hei Lanse, and forming complex compound is the grape redness, but very unstable, in case contact with DETA reagent, EDTA is with complex compound CaI in the solution of pH=10
-, MgI
-In Ca
++, Mg
++Capture at once and to generate more stable complex compound, its reaction is:
H in the formula
2y
〓Represent EDTA to participate in the negative ion that reacts,
Generate in the stable complex compound process, change color has promptly taken place, become blue green by the grape redness, be reaction end this moment.
Disodium ethylene diamine tetraacetate is a principal ingredient of measuring hardness in the display piece, calculates the size of hardness by the consumption of EDTA; Sodium tetraborate and natrium carbonicum calcinatum are to play buffer action in mensuration, are mainly used to adjust pH value=10, because the EDTA complex reaction is just the most complete when having only the pH=10 left and right sides, thereby the hardness ratio that records is more accurate; Eriochrome black T and oxammonium hydrochloride are indicator, are used for the terminal colour of Indicator Reaction.Soluble starch is a carrier, be used for each component is mixed the back molding bonded, the chemical reaction of each component of display piece in water sample carries out at short notice, as long as display piece is dissolved fully, reaction will be finished, if water sample water temperature lower (winter), chemical reaction is time expand slightly, also can be heated to about 30 ℃ with heating means, reaction will be carried out very soon.
Embodiment:
After preparing by the component of the various embodiments described above, water mixing-granulation-oven dry-compacting is in blocks.
Display piece of the present invention is measured the softened water hardness process:
1) accurately measures 100 milliliters of water samples, place 250 milliliters of conical flasks;
2) a slice display piece is inserted in the water sample, shaken 1-2 minute, water sample has presented color, as present blue green, softened water hardness≤0.03mg N/e is described, expression soft water is qualified, can advance boiler, if be the grape redness, softened water hardness＞0.03mg N/e is described, has surpassed standard, be defective, do not allow into boiler, carry out the sodion exchange immediately and regenerate.
Measurement result:
Claims (2)
1, a kind of mensuration softened water hardness indicating plate is characterized in that the component of every display piece and consumption (milligram meter) are as follows:
Disodium ethylene diamine tetraacetate (EDTA) 1.0-2.0
Sodium tetraborate 100-200
Natrium carbonicum calcinatum 20-60
Eriochrome black T 0.1-1.5
Oxammonium hydrochloride 2-8
Soluble starch (carrier) 40-120
Distilled water 0.05-0.1.
2, display piece according to claim 1 is characterized in that the good consumption of described each group component is as follows:
Disodium ethylene diamine tetraacetate 1.5-2.0
Sodium tetraborate 120-150
Natrium carbonicum calcinatum 40-50
Eriochrome black T 0.5-1.0
Oxammonium hydrochloride 5-7
Soluble starch 60-80
Distilled water 0.06-0.08
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93104871 CN1028449C (en) | 1993-04-29 | 1993-04-29 | Softened water hardness indicating plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93104871 CN1028449C (en) | 1993-04-29 | 1993-04-29 | Softened water hardness indicating plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1080398A true CN1080398A (en) | 1994-01-05 |
| CN1028449C CN1028449C (en) | 1995-05-17 |
Family
ID=4985427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93104871 Expired - Fee Related CN1028449C (en) | 1993-04-29 | 1993-04-29 | Softened water hardness indicating plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1028449C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462736B (en) * | 2007-12-17 | 2012-07-04 | 天津市化学试剂研究所 | Method for preparing primary standard reagent sodium tetraborate |
| CN103033503A (en) * | 2012-12-10 | 2013-04-10 | 同济大学 | Preparation and application method of chromogenic detecting piece for determining iron in water |
| CN107228856A (en) * | 2017-08-11 | 2017-10-03 | 中国锅炉水处理协会 | A kind of boiler feedwater quality hardness test agent and its preparation |
-
1993
- 1993-04-29 CN CN 93104871 patent/CN1028449C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462736B (en) * | 2007-12-17 | 2012-07-04 | 天津市化学试剂研究所 | Method for preparing primary standard reagent sodium tetraborate |
| CN103033503A (en) * | 2012-12-10 | 2013-04-10 | 同济大学 | Preparation and application method of chromogenic detecting piece for determining iron in water |
| CN107228856A (en) * | 2017-08-11 | 2017-10-03 | 中国锅炉水处理协会 | A kind of boiler feedwater quality hardness test agent and its preparation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1028449C (en) | 1995-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW325521B (en) | Method for classifying white cells | |
| Welch et al. | Determination of serum creatinine by isotope dilution mass spectrometry as a candidate definitive method | |
| CN107589140B (en) | Method for detecting contents of chlorine, phosphorus and potassium in compound fertilizer product by energy dispersion X-ray fluorescence spectrum | |
| CN112147117A (en) | Aminoglycoside antibiotic detection method based on fluorescent metal organic framework material | |
| CN100422718C (en) | Method for determining sodium chloride content in phosphate using spectrophotometry | |
| CN1080398A (en) | Softened water hardness indicating plate | |
| Gao et al. | Differential pulse voltammetric determination of cobalt with a perfluorinated sulfonated polymer-2, 2-bipyridyl modified carbon paste electrode | |
| CN112362432B (en) | Dissociation agent universally used in serum TT3 and TT4 and preparation method thereof | |
| CN101907603B (en) | N-sugar chain relative quantitation method based on 18O mark | |
| LeBlanc | Polarographic Determination of N, N´-Ethylenediglycine and Nitrilotriacetic Acid in (Ethylenedinitrilo)-tetracetic Acid | |
| CA2407508A1 (en) | Improved process for the measurement of non-transferrin bound iron | |
| CN1869652A (en) | Investigating agent and method of serum sodium ion enzyme method | |
| CN2811999Y (en) | Soil pH value and humidity tester | |
| CN1786185A (en) | Determination method of proangiotension transferase activity and proangiotension transferase diagnosis kit | |
| CN108717086A (en) | A kind of method of gluconic acid content in measurement food | |
| Ghoneim et al. | Assay of dipyridamole in human serum using cathodic adsorptive square-wave stripping voltammetry | |
| CN105987908A (en) | Detection kit for on-site quick detection of nickel ions in water and preparing method | |
| CN109254100A (en) | A kind of ion chromatography detection method of gentamicinB purity | |
| CN85105500A (en) | The rapid test method of gold content in the high-load gold sample | |
| ES8609721A1 (en) | Nonenzymatic glucose test. | |
| CN2840020Y (en) | Nickel colorimetric estimation cylinder | |
| JP3989404B2 (en) | Method for measuring lysate reagent reactive substances | |
| SU943570A1 (en) | Ion content determination method | |
| CN2844901Y (en) | Manganese colormetering tube | |
| Jyo et al. | Response of a copper (II) ion-selective electrode in cupric buffers based on macrocyclic polyamines. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: GUIXI SMELTERY, JIANGXI COPPER INDUSTRY CO. TO: JIANGXI PROVINCE GUIXI CITY RUIQI NEW PRODUCTS DEVELOPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 335400, Jiangxi construction Avenue, Guixi city supplies Bureau on the third floor Patentee after: Jiangxi province Guixi richoice new product development Co. Ltd. Address before: 335424 Guixi smelter, Guixi County, Jiangxi Province Patentee before: Jiang-xi Copper Co. Gui-xi Smelting Factory |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |