8598. Sodium Chlorate

Nomenclature

CAS number: 7775-09-9
Chloric acid sodium salt (1:1); Atlacide (Chipman); Defol (Drexel); Dervan (Caffaro).
ClNaO3; mol wt 106.44.
Cl 33.31%, Na 21.60%, O 45.09%.
NaClO3.

Description and references

The chlorate of commerce is about 99% pure. Produced from sodium chloride by electrolysis: Faith, Keyes & Clark's Industrial Chemicals, F. A. Lowenheim, M. K. Moran, Eds. (Wiley-Interscience, New York, 4th ed., 1975) pp 716-721. Toxicity: Ulrich, J. Pharmacol. Exp. Ther. 35, 1 (1929).

Properties

Colorless, odorless crystals or white granules. d 2.5. mp 248°; at about 300° liberates oxygen; entirely dec at higher temp. Sol in about 1 ml cold, 0.5 ml boiling water, about 130 ml alcohol, about 50 ml boiling alcohol, 4 ml glycerol. Sodium chloride diminishes its soly in water. The aq soln is neutral. Keep out of contact with organic matter or other oxidizable substances. LD orally in rats: 12000 mg/kg (Ulrich).

Use

An oxidizer, like potassium chlorate, in manuf of dyes; explosives and matches; dyeing and printing fabrics; tanning and finishing leather. Herbicide. Pharmaceutic aid (oxidizing agent). Oxidimetric reagent in analytical chemistry.