POTASSIUM OXALATE

POTASSIUM OXALATE MONOHYDRATE
PRODUCT IDENTIFICATION
CAS NO.	583-52-8 (Anhydrous) 6487-48-5 (Monohydrate) 127-96-8 (Dihydrate)
EINECS NO.	209-506-8 (Anhydrous) 204-874-6 (Dihydrate)
FORMULA	K₂C₂O₄·H₂O
MOL WT.	184.21
H.S. CODE	2917.11.0000
TOXICITY
SYNONYMS	Oxalic acid dipotassium salt monohydrate;
Potassium oxalate monohydrate; Dikaliumoxalat (German); Oxalato de dipotasio (Spanish); Oxalate de dipotassium (French); Dipotassium oxalate monohydrate;
SMILES	O.[K+].[K+].[O-]C(=O)C([O-])=O
CLASSIFICATION	Biological Buffer, Chelating agent
EXTRA NOTES
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE	white crystals
MELTING POINT	356 C
BOILING POINT
SPECIFIC GRAVITY	2.13
SOLUBILITY IN WATER	364 g/l at 20 C
pH	7- 8
VAPOR DENSITY
AUTOIGNITION
NFPA RATINGS	Health: 3; Flammability: 1; Reactivity: 0
REFRACTIVE INDEX
FLASH POINT
STABILITY	Stable under ordinary conditions. Moisture sensitive
EXTERNAL LINKS & GENERAL DESCRIPTION
Wikipedia Linking Material Safety Data Sheet Google Scholar Search Drug Information Portal (U.S. National Library of Medicine) - Potassium oxalate PubChem Compound Summary - Potassium oxalate Local: Oxalic Acid (also called Ethanedioic Acid) is a colourless, crystalline, toxic organic compound belonging to the family of dicarboxylic acids; melting at 187 C; soluble in water, alcohol, and ether. It occurs in the form of its metal salts (usually calcium or potassium) in many plants. It is commercially manufactured by heating sodium formate in the presence of an alkali catalyst to form sodium oxalate, which should be converted to free oxalic acid when treated with sulfuric acid. It is also prepared by oxidizing carbohydrates with nitric acid, by heating saw dust with caustic alkalies or by fermentation of sugar solutions in the presence of certain molds. Oxalic acid is the only possible compound in which two carboxyl groups are joined directly; for this reason oxalic acid is one of the strongest acids in organic compounds. Unlike other carboxylic acids, oxalic acid (and formic acid) is readily oxidized and combine with calcium, iron, sodium, magnesium, or potassium to form less soluble salts called oxalates. Oxalic acid and oxalates are useful as reducing agents for photography, bleaching, and rust removal. They are widely used as an purifying agent in pharmaceutical industry, precipitating agent in rare-earth metal processing, bleaching agent in textile and wood industry, rust-remover for metal treatment, grinding agent, waste water treatment. acid rinse in laundries and removing scale from automobile radiators.
SALES SPECIFICATION
APPEARANCE	white crystals
PURITY	99.0% min
CHLORIDE	0.01% max
SULFATE	0.01% max
HEAVY METALS	10ppm max
IRON	10ppm max
INSOLUBLES	0.05% max
TRANSPORTATION
PACKING	25kgs in bag
HAZARD CLASS	6.1 (`Packing Group: III)`
UN NO.	2811
SAFETY INFORMATION
HAZARD OVERVIEW	Harmful if absorbed through the skin. Hygroscopic (absorbs moisture from the air). Harmful if swallowed. May cause kidney damage. Causes eye, skin, and respiratory tract irritation. Target Organs: Kidneys, heart, eyes, skin, brain, nerves, mucous membranes.
GHS
SIGNAL WORD	Warning
PICTOGRAMS
HAZARD STATEMENTS	H312 Harmful in contact with skin H302 Harmful if swallowed
PRECAUTIONARY STATEMENTS	P280 Wear protective gloves/protective clothing/eye protection/face protection P302 + P352 IF ON SKIN: Wash with plenty of soap and water P301+ P312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
EC DIRECTIVES
HAZARD CODES
RISK PHRASES	21/22 Harmful in contact with skin and if swallowed.
SAFETY PHRASES	24/25: Avoid contact with skin and eyes
PRICE INFORMATION