JPH0137690B2 - - Google Patents
Info
- Publication number
- JPH0137690B2 JPH0137690B2 JP1412080A JP1412080A JPH0137690B2 JP H0137690 B2 JPH0137690 B2 JP H0137690B2 JP 1412080 A JP1412080 A JP 1412080A JP 1412080 A JP1412080 A JP 1412080A JP H0137690 B2 JPH0137690 B2 JP H0137690B2
- Authority
- JP
- Japan
- Prior art keywords
- potassium permanganate
- silver salt
- water
- amount
- test water
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 239000012286 potassium permanganate Substances 0.000 claims description 29
- 238000005259 measurement Methods 0.000 claims description 27
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 claims description 26
- 238000012360 testing method Methods 0.000 claims description 22
- 238000007254 oxidation reaction Methods 0.000 claims description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 15
- 230000003647 oxidation Effects 0.000 claims description 14
- 239000000460 chlorine Substances 0.000 claims description 9
- 229910052801 chlorine Inorganic materials 0.000 claims description 9
- -1 chlorine ions Chemical class 0.000 claims description 9
- 238000000691 measurement method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 25
- 238000004458 analytical method Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 16
- 239000000243 solution Substances 0.000 description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical group S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 12
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- 239000012895 dilution Substances 0.000 description 8
- 238000010790 dilution Methods 0.000 description 8
- 239000011259 mixed solution Substances 0.000 description 6
- 238000004448 titration Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229910001961 silver nitrate Inorganic materials 0.000 description 5
- 239000011780 sodium chloride Substances 0.000 description 4
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 description 4
- 229940039790 sodium oxalate Drugs 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- YPNVIBVEFVRZPJ-UHFFFAOYSA-L silver sulfate Chemical compound [Ag+].[Ag+].[O-]S([O-])(=O)=O YPNVIBVEFVRZPJ-UHFFFAOYSA-L 0.000 description 1
- 229910000367 silver sulfate Inorganic materials 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000013076 target substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1806—Biological oxygen demand [BOD] or chemical oxygen demand [COD]
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Emergency Medicine (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1412080A JPS56111465A (en) | 1980-02-06 | 1980-02-06 | Measuring method for cod value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1412080A JPS56111465A (en) | 1980-02-06 | 1980-02-06 | Measuring method for cod value |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56111465A JPS56111465A (en) | 1981-09-03 |
| JPH0137690B2 true JPH0137690B2 (en]) | 1989-08-09 |
Family
ID=11852254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1412080A Granted JPS56111465A (en) | 1980-02-06 | 1980-02-06 | Measuring method for cod value |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56111465A (en]) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5860265U (ja) * | 1981-10-20 | 1983-04-23 | 株式会社明電舎 | Ｃｏｄ測定装置 |
| CN108680716B (zh) * | 2018-02-13 | 2021-10-08 | 华测检测认证集团股份有限公司 | 一种含氯废水化学需氧量初筛方法 |
| CN112816614B (zh) * | 2020-12-30 | 2022-08-02 | 杭州谱育科技发展有限公司 | 高锰酸钾指数的自适应滴定方法 |
-
1980
- 1980-02-06 JP JP1412080A patent/JPS56111465A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56111465A (en) | 1981-09-03 |
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