CALCIUM BROMATE Property

Melting point:

180°C

Density 

3.329

solubility 

very soluble in H2O

form 

powder

color 

white

Water Solubility 

very soluble H2O [HAW93]

CAS DataBase Reference

10102-75-7(CAS DataBase Reference)

Safety

RIDADR 

UN1450

HazardClass 

5.1

PackingGroup 

II

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Hazard statements

H272May intensify fire; oxidizer

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P220Keep/Store away from clothing/…/combustible materials.

P221Take any precaution to avoid mixing with combustibles/…

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

CALCIUM BROMATE Chemical Properties,Usage,Production

Chemical Properties

white, monoclinic, crystal(s) powder(s); oxidizing agent; used as a maturing agent, a dough conditioner [HAW93] [CRC10]

Uses

Calcium bromate is used as a maturing agent and dough conditioner in bromated flours.Other than this usage, this salt is not utilized in Industry. It is available commercially.

Uses

Calcium Bromate is a dough conditioner and maturing and bleaching agent which exists as a white crystalline powder. it is very soluble in water and is used in flour and dough.

Preparation

Calcium Bromate may be prepared by reacting calcium hydroxide with sodium bromate or by reacting calcium sulfate with barium bromate:
Ca(OH)2＋ 2NaBrO3→Ca(BrO3)2＋ 2NaOH
CaSO4 (aq)＋ Ba(BrO3)2 (solid)→Ca(BrO3)2 (aq)＋ BaSO4 (solid)
Of the two methods, the latter seems to be more stable one since the temperature can be as high as 80°C in solution. The usual product is a monohydrate, Ca(BrO3)2·H2O.
Calcium bromate monohydrate occurs as colorless, monoclinic crystals or prismatic plates which are soluble in water. This salt loses its water below 180°C and decomposes above that temperature to form calcium bromide plus oxygen.