OXALYL CHLORIDE

PRODUCT IDENTIFICATION

CAS NO. 79-37-8

OXALYL CHLORIDE

EINECS NO. 201-200-2
FORMULA ClCOCOCl
MOL WT. 126.93
H.S. CODE 2917.19

TOXICITY

 
SYNONYMS Ethandioyl chloride; Ethanedioyl dichloride;
Oxalic dichloride; Oxaloyl chloride; Oxalyl dichloride;

SMILES

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE clear liquid
MELTING POINT

-12 C

BOILING POINT 63 - 64 C
SPECIFIC GRAVITY 1.475 - 1.485
SOLUBILITY IN WATER Reacts (soluble in ether, benzene, chloroform)
pH  
VAPOR DENSITY  

AUTOIGNITION

 

NFPA RATINGS

Health: 3; Flammability: 0; Reactivity: 1

REFRACTIVE INDEX

 
FLASH POINT >100 C
STABILITY Stable under ordinary conditions. Moisture sensitive.

APPLICATIONS

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. Oxalyl Chloride which has two alpha-carbons in the smallest chain is used as a chlorinating or acylating agent in organic synthesis. It is used in formulating military poison gas. The strong acid releases the stable conjugate base (halide anion except F) with small strength differences of Cl- < Br- < I-.
SALES SPECIFICATION

APPEARANCE

clear liquid
PURITY

99.0% min

SPECIFIC GRAVITY 1.475 - 1.485
TRANSPORTATION
PACKING 250kgs in drum
HAZARD CLASS 8 (Packing Group: II)
UN NO. 2922
OTHER INFORMATION
Hazard Symbols: T, Risk Phrases: 14-23-29-35, Safety Phrases: 26-36/37/39-45