SODIUM CHLORATE

PRODUCT IDENTIFICATION
CAS NO. 7775-09-9

SODIUM CHLORATE
EINECS NO. 231-887-4
FORMULA NaClO3
MOL WT. 106.44

H.S. CODE

 2829.11
TOXICITY Oral rat LD50: 1200 mg/kg
SYNONYMS Soda Chlorate; Chloric acid, sodium salt;
chlorax; Chlorsaure (German); Natrium Chloraat (Dutch); Natrium Chlorat (German); Sodio (Clorato Di) (Italian); Sodium (Chlorate De) (French); Chlorate of Soda;
DERIVATION chlorine on hot concentrated sodium hydroxide

CLASSIFICATION

DISINFECTANTS /

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE white crystalline solid, saline taste
MELTING POINT

248 C
BOILING POINT 300 C (Decomposes)
SPECIFIC GRAVITY 2.5
SOLUBILITY IN WATER soluble in water and alcohol
pH 5 - 7
VAPOR DENSITY 3.7

AUTOIGNITION

  

NFPA RATINGS

 Health: 1 Flammability: 0 Reactivity: 1 Other: Oxidizer

REFRACTIVE INDEX

 
FLASH POINT Not combustible
STABILITY Stable under ordinary conditions

APPLICATIONS
Sodium chlorate is a powerful oxidizing agent. It is used to manufacture explosives and matches because of its ability to produce oxygen. Chlorate is a powerful ingredient of bleaching powder used in paper and pulp processing and calico printing. It is used also a weed killer and defoliant.
SALES SPECIFICATION

APPEARANCE

white crystalline solid
CONTENT
99.0% min

WATER INSOLUBLES

0.03% max
CHLORIDES

0.3% max
SULFATE SALTS

0.02% max

CHROMATES

0.02% max

Fe

0.03% max

WATER

1.0% max
TRANSPORTATION
PACKING  
HAZARD CLASS 5.1 (Packing Group: II)
UN NO. 1495
OTHER INFORMATION
Hazard Symbols: XN O, Risk Phrases: 22/9, Safety Phrases:13/17/46
Chlorate is the common name for chlorate(V) salt. The related names to the acids are clear when the oxidation number statement is appended; hypochlorite [or chlorate(I)] contains the ion, ClO- ; chlorite [or chlorate(III)], ClO2-; Chlorate [or chlorate(V)], ClO3-; perchlorate [or chlorate(VII)], ClO4-.