Potassium oxalate

  • Dipotassium oxalate
  • Ethanedioic acid, dipotassium salt
Formula
K2C2O4
Structure
Description
Odorless white crystals.
Uses
Reagent in analytical chemistry, source of oxalic acid, bleaching and cleaning, removing stains from textiles, photography.

Registry Numbers and Inventories.
CAS
583-52-8
EC (EINECS/ELINCS)
209-506-8
RTECS
RO2885000
RTECS class
Human Data
Merck
12,7820
Beilstein/Gmelin
3706608
Beilstein Reference
4-02-00-01819
Swiss Giftliste 1
G-2315
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C2O4*2K
Formula mass
166.22
Density
2.13 g/cm3 (20 C)
Solubility in water
330 g/L

Hazards and Protection.
Storage
Store in a cool, dry place. Keep containers closed when not in use. Protect product from moisture. Product is sensitive to light.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear plastic or rubber gloves, eye goggles and other suitable protective clothing to minimise exposure.
Respirators
Wear breathing apparatus in dusty atmospheres.
Small spills/leaks
Clean-up personnel should wear full protective clothing including self-contained breathing apparatus for dusty conditions. Prevent material from entering drains and sewers.
Stability
Stable at normal handling and storage temperatures.
Incompatibilities
Oxidizing agents, bases, acid chlorides, alkali metals, steel, moisture and metals.
Decomposition
Oxides of carbon.

Fire.
Fire fighting
Fire-fighters should wear full protective clothing including self-contained breathing apparatus. In case of fire use carbon dioxide, foam, powder or water spray. DO NOT use water in a jet (will spread product).
Fire potential
Nonflammable.

Health.
Poison_Class
2
Exposure effects
May cause kidney damage. Chronic inhalation and ingestion may cause effects similar to those of acute inhalation and ingestion.
   Ingestion
The accidental ingestion of soluble oxalic acid salts produces general intoxication by hypocalcemia (shivers, convulsions, coma, coagulation disorders etc.) and mostly acute nephritis with precipitation of insoluble calcium oxalate in renal tubes. May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause corrosion and permanent tissue destruction of the oesophagus and digestive tract. May cause kidney and liver damage, severe shock, convulsions, collapse, and possible death if ingested in large amounts.
   Inhalation
May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary oedma. May cause effects similar to those described for ingestion.
   Skin
May cause skin irritation. Harmful by subcutaneous contact.
   Eyes
May cause conjunctivitis. May cause eye irritation and possible burns.

First aid
 
   Ingestion
DO NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Seek medical attention immediately.
   Inhalation
Remove victim to fresh air; if exposure to dust is severe, get medical attention.
   Skin
Flush with water.
   Eyes
Flush with water and seek medical attention.

Transport.
USCG CHRIS Code
PTS