Potassium tetroxalate dihydrate
- CAS No.
- 6100-20-5
- Chemical Name:
- Potassium tetroxalate dihydrate
- Synonyms
- POTASSIUM TETRAOXALATE;POTASSIUM TETRAOXALATE DIHYDRATE;Potassium tetroxalat;Potassium tetra oxal;POTASSIUM TETROXALATE;OXALIC ACID POTASSIUM SALT;PotassiuM Oxalate Dihydrate;PotassiuM Tetraoxalate (PTO);oxalic acid hemipotassium salt;Potassium oxalate tetrahydrate
- CBNumber:
- CB8477350
- Molecular Formula:
- C2H5KO5
- Molecular Weight:
- 148.16
- MDL Number:
- MFCD00150443
- MOL File:
- 6100-20-5.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Potassium tetraoxalate dihydrate NIST? SRM? 189c, pH standard | NIST189C | 65g | $1330 |
| Potassium tetraoxalate dihydrate certified secondary standard reference material for pH measurement; directly traceable to primary reference material from NIST/PTB pH (S) = 1.67? (25°C) Certipur? | 1.01961 | 25g | $235 |
| Potassium tetraoxalate dihydrate | 1.01961 | 1019610025 | $156 |
| Potassium Trihydrogen Dioxalate Dihydrate >99.0%(T) | P0475 | 25g | $26 |
| Potassium Trihydrogen Dioxalate Dihydrate >99.0%(T) | P0475 | 500g | $150 |
| More product size | |||
| Density | 1,84 g/cm3 |
|---|---|
| bulk density | 860kg/m3 |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | H2O: 0.1 M at 20 °C, clear, colorless |
| form | Crystalline Powder or Solid |
| color | White to beige |
| PH | 1.7 (12.6g/l, H2O, 25℃) |
| Water Solubility | soluble |
| Merck | 14,7689 |
| BRN | 3854419 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Major Application | general analytical |
| InChI | 1S/2C2H2O4.K.2H2O/c2*3-1(4)2(5)6;;;/h2*(H,3,4)(H,5,6);;2*1H2/q;;+1;;/p-1 |
| InChIKey | KPFHSTZUXXJAES-UHFFFAOYSA-M |
| SMILES | O.O.[K+].OC(=O)C(O)=O.OC(=O)C([O-])=O |
| CAS DataBase Reference | 6100-20-5(CAS DataBase Reference) |
| FDA UNII | OQ8R5Z714T |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302+H312-H319 | |||||||||
| Precautionary statements | P264-P270-P280-P301+P312-P302+P352+P312-P305+P351+P338 | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 21/22 | |||||||||
| Safety Statements | 24/25 | |||||||||
| RIDADR | UN 3261 8/PG 3 | |||||||||
| WGK Germany | 1 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 2917 11 00 | |||||||||
| HazardClass | 6.1 | |||||||||
| PackingGroup | III | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Dermal Acute Tox. 4 Oral Eye Irrit. 2 |
|||||||||
| NFPA 704 |
|
Potassium tetroxalate dihydrate price More Price(33)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | NIST189C | Potassium tetraoxalate dihydrate NIST? SRM? 189c, pH standard | 6100-20-5 | 65g | $1330 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1.01961 | Potassium tetraoxalate dihydrate certified secondary standard reference material for pH measurement; directly traceable to primary reference material from NIST/PTB pH (S) = 1.67? (25°C) Certipur? | 6100-20-5 | 25g | $235 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1.01961 | Potassium tetraoxalate dihydrate | 6100-20-5 | 1019610025 | $156 | 2021-12-16 | Buy |
| TCI Chemical | P0475 | Potassium Trihydrogen Dioxalate Dihydrate >99.0%(T) | 6100-20-5 | 25g | $26 | 2026-04-30 | Buy |
| TCI Chemical | P0475 | Potassium Trihydrogen Dioxalate Dihydrate >99.0%(T) | 6100-20-5 | 500g | $150 | 2026-04-30 | Buy |
Potassium tetroxalate dihydrate Chemical Properties,Uses,Production
Chemical Properties
white crystalline powder or colourless crystals
Uses
A method of utilizing a solution of Oxalic acid potassium salt, dihydrate 99 % to react with calcium in the dentinal fluid forming an insoluble white precipitate of calcium oxalate which occludes the dentinal tubules causing decreased sensitivity, permeability and acid penetration of the dentin.
Uses
Potassium trihydrogen dioxalate dihydrat is used in metal polishing determination of pH. And it is also used in photography, marble grinding, and to remove ink stains.
Synthesis
A method of producing potassium tetraoxalate by fermentation of Aspergillus niger, the method comprising the steps of:
a. Isolation and purification of Aspergillus niger: stem segments of wrinkled edge stone fir plant were selected, rinsed by running water for 2-3 hours→75% alcohol sterilization for 1-2min→0.01mol/L hydrochloric acid, 5% sodium hypochlorite, 2.4mmol/L citric acid were rinsed in turn→5% sodium hypochlorite was sterilized for 10-12min→ sterile water was Rinse 3-5 times→10% hydrogen peroxide disinfection 8-12min→aseptic water rinse 4-5 times→sterile blotting paper to absorb the surface water→inoculation on PDA plate→isolation, purification to obtain Aspergillus niger.
b, liquid fermentation culture of Aspergillus niger: per liter of PDA liquid medium, add sucrose 5 ~ 25g, pH adjusted to 4.7 ~ 6.4, aseptic condition, inoculation of Aspergillus niger spores, the amount of Aspergillus niger spores added to 1 liter of PDA culture medium plus 1% (by volume) of Aspergillus niger spores, spore concentration of 1 × 104 ~ 106cfu/mL, incubation temperature of 30 to 40 , speed of 120 ~ 150 rpm, the amount of air ventilation for the total volume of culture medium, that is, PDA culture medium, sucrose and Aspergillus niger spore inoculum amount of the sum of 30%, constant temperature fermentation culture for 72-100 hours, filtration of mycelium, the fermentation broth is concentrated to the total volume of the culture medium of 1/20 ~ 1/15, precipitation of crystals, ultrapure water washed 4 ~ 5 times, 40 ~ 50 drying, to get the tetraoxalic acid potassium salt. product.
Purification Methods
Crystallise it from water below 50o. Dry it below 60o at 760mm. [See potassium oxalate above, Beilstein 2 IV 1823.]
Potassium tetroxalate dihydrate Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5220 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29812 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 | sale@chuangyingchem.com | CHINA | 5906 | 58 |
| Tangshan Moneide Trading Co., Ltd. | +86-315-8309571 +8615633399667 | sales@moneidechem.com | China | 574 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| Connect Chemicals GmbH | 2102-207739 | inquiries@connectchemicals.com | Germany | 265 | 58 |
| ANHUI WITOP BIOTECH CO., LTD | +8615255079626 | eric@witopchemical.com | China | 23541 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81139210 +86-17392587031 | 1059@dideu.com | China | 9996 | 58 |
View Lastest Price from Potassium tetroxalate dihydrate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-05-28 | Potassium tetroxalate dihydrate
6100-20-5
|
$9.00 | 1KG | 99.9 | 1 ton | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2026-03-20 | Potassium tetroxalate dihydrate
6100-20-5
|
$10.00 | 100KG | 99% | 100 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-04-15 | Potassium tetroxalate dihydrate
6100-20-5
|
$45.00 | 1kg | 99% | 5000kg/week | Hebei Zhuanglai Chemical Trading Co.,Ltd |
-
- Potassium tetroxalate dihydrate
6100-20-5
- $9.00
- 99.9
- Hebei Chuanghai Biotechnology Co,.LTD
-
- Potassium tetroxalate dihydrate
6100-20-5
- $10.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Potassium tetroxalate dihydrate
6100-20-5
- $45.00
- 99%
- Hebei Zhuanglai Chemical Trading Co.,Ltd
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