Basic information
- CAS
583-52-8- Standard SMILES
O=C([O-])C(=O)[O-].[K+].[K+]- InChIKey
IRXRGVFLQOSHOH-UHFFFAOYSA-L- Molecular formula
- C2K2O4
- Average molar mass
- 166.22 g/mol
- Monoisotopic mass
- 165.90707145
Names & identifiers
- Preferred name
- Dipotassium Oxalate
- IUPAC
- dipotassium;oxalate
- English name
- Potassium oxalate
- Molecular formula
- C2K2O4
- Molecular weight
- 166.22
Names & synonyms
Show more names
Database identifiers
- CAS
583-52-8- PubChem CID
- 11413
- DTXSID
DTXSID6060393- UNII
- LC7F2W7I5B
- EC Number
- 209-506-8
- Nikkaji
- J441C
Properties
Computed structural properties
- Topological polar surface area
- 80.3 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 8
- Formal charge
- 0
- Complexity
- 60
Experimental & physicochemical properties
Physicochemical properties
- Density
- 2.13 · 2.13
- solubility
- 2 O · slightly soluble in H2O
- color
- white pwd
- Odor
- odorless
- Water Solubility
- 392 g/L · 392g/L at 20℃
- Cosmetics Ingredients Functions
- ANTICORROSIVECHELATING
- InChI
- InChI=1S/C2H2O4.2K/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2
- InChIKey
- IRXRGVFLQOSHOH-UHFFFAOYSA-L
- SMILES
- C([O-])(=O)C([O-])=O.[K+].[K+]
- CAS DataBase Reference
- 583 · 583-52-8(CAS DataBase Reference)
- FDA UNII
- 7 F2W7I5B · LC7F2W7I5B
- EPA Substance Registry System
- Ethanedioic acid, potassium salt (1:2) (583-52-8)
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 312 · H312-H302-H319
- Precautionary statements
- 264 · P264-P270-P301+P312-P330-P501-P280-P302+P352-P312-P322-P363-P501-P264-P280-P305+P351+P338-P337+P313P
- TSCA
- TSCA listed
- REACH Registrations
- Active
Safety & regulation
GHS classification
GHS Classification
Warning
H302+H312 (42%): Harmful if swallowed or in contact with skin [Warning Acute toxicity, oral; acute toxicity, dermal];H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral];H312 (100%): Harmful in contact with skin [Warning Acute toxicity, dermal];H319 (60.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
P264, P264+P265, P270, P280, P301+P317, P302+P352, P305+P351+P338, P317, P321, P330, P337+P317, P362+P364, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 300 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.;Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Hazard information
Regulatory Information
Chemical: Ethanedioic acid, dipotassium salt
Status: Active Update: 08-10-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/22576
Ethanedioic acid, dipotassium salt: Does not have an individual approval but may be used under an appropriate group standard
Hazards Summary
Occurs as the monohydrate; Poisonous; [Merck Index] Dust is irritating to eyes, nose, and throat; Inhalation may cause systemic poisoning; Ingestion may cause cardiovascular collapse and delayed neuromuscular symptoms; [CHRIS] Caused arrhythmias and shock in women at lowest lethal dose of 1000 mg/kg; [RTECS] May cause severe irritation or burns to skin; May cause burns or injury to eyes; A nose, throat, and respiratory tract irritant; Heavy inhalation exposure may cause coughing, difficulty breathing, and chest pains; Chronic overexposure may lead to kidney injury; Toxic by ingestion and inhalation; Targets kidneys and nervous system; [Integra MSDS]
Hazard Classes and Categories
Acute Tox. 4 (100%);Acute Tox. 4 (100%);Eye Irrit. 2 (60.7%)
Acute toxicity - category 4;Acute toxicity - category 4;Eye damage - category 1;Skin irritation - category 2;Specific target organ toxicity (single exposure) - category 3;Specific target organ toxicity (repeated exposure) - category 2
Acute toxicity (Oral) - Category 4
Safety & protection
Protective Action Criteria (PAC)
9.5 [mg/m3]
100 [mg/m3]
630 [mg/m3]
Toxicology
Regulatory information
Regulatory Information
Chemical: Ethanedioic acid, dipotassium salt
Status: Active Update: 08-10-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/22576
Ethanedioic acid, dipotassium salt: Does not have an individual approval but may be used under an appropriate group standard
Safety data
- tsca
- TSCA listed
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- Hazard statements
- H312-H302-H319
- REACH Registrations
- Active
- Precautionary statements
- P264-P270-P301+P312-P330-P501-P280-P302+P352-P312-P322-P363-P501-P264-P280-P305+P351+P338-P337+P313P
Chemistry & industry
Pharmacology
FDA Pharmacological Classification
KALI OXALICUM
Osmotic Laxative [EPC]; Potassium Compounds [CS]; Potassium Salt [EPC]; Increased Large Intestinal Motility [PE]; Osmotic Activity [MoA]; Inhibition Large Intestine Fluid/Electrolyte Absorption [PE]
Uses & manufacturing
Uses
Used to bleach straw and to prevent in vitro blood coagulation; [Merck Index] Used in photography and to remove textile stains; [Hawley]
Photographic Processing [Category: Other];Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
Applications
UsesPotassium oxalate is a white crystal or powder made by neutralizing oxalic acid with potassium carbonate. It is soluble in water 1:3 but not in alcohol. Potassium oxalate was used as an early developer for gelatin plates but is best known as the developer for platinum prints.
UsesCleaning and bleaching straw, removing stains in photography; in vitro blood anticoagulant; also in analytical chemistry.
General DescriptionPotassium oxalate, K2C204, H20, is odorless, efforescent, water-soluble, colorless crystals that decompose when heated. Sinks in and mixes slowly with water. Used in analytical chemistry and photography, and as a bleach and oxalic acid source.
Preparation methods
PreparationOxalic acid is the main raw material for the preparation of potassium oxalate. It is prepared by reacting potassium carbonate with oxalic acid. The reaction equation is: K₂CO₃ + H₂C₂O₄ = K₂C₂O₄ + CO₂↑ + H₂O.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers87 total
Related reactions
Compound notes
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