Sodium bromate

Formula
NaBrO3
Structure
Description
Colorless crystals, white granules or crystalline powder, odorless.
Uses
As mixt with sodium bromide for dissolving gold from its ores.

Registry Numbers and Inventories.
CAS
7789-38-0
EC (EINECS/ELINCS)
232-160-4
EC Class
oxidizing, harmful, irritant
R 8 22 36/37/38
S 17 22 26 36/37/39
RTECS
EF8750000
RTECS class
Tumorigen; Human Data
UN (DOT)
1494
Merck
12,8736
Beilstein/Gmelin
17880 (G)
EPA OPP
13908
Swiss Giftliste 1
G-2577
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
BrNaO3
Formula mass
150.90
Melting point, °C
381
Boiling point, °C
1390
Vapor density (air=1)
5.2
Density
3.254 g/cm3
Solubility in water
Soluble
Thermal expansion
0.0000473/K

Hazards and Protection.
Storage
Do not store near combustible materials. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with clothing and other combustible materials. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation. Do not use combustible materials such as paper towels to clean up spill.
Disposal code
22
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong reducing agents, finely powdered metals, sulfur, arsenic, metal sulfide, organic matter, phosphorus, aluminum, carbon, copper, lubricant.
Decomposition
Toxic fumes of sodium oxide, hydrogen bromide, oxygen.

Fire.
Flash Point,°C
381
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Oxidizer. Greatly increases the burning rate of combustible materials. May accelerate burning if involved in a fire. Containers may explode when heated. Extinguishing media: Cool containers with flooding quantities of water until well after fire is out. For small fires DO NOT use dry chemicals, carbon dioxide, halon or foams. USE WATER ONLY. For large fires flood fire with water from a distance.
Fire potential
These substances will accelerate burning when involved in a fire.
Hazards
May explode from heat or contamination. Some may burn rapidly. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
 
Special
O

Health.
Carcinogin
I-2B, CP65
Poison_Class
3
Exposure effects
Lethargy, restlessness, and coma may be noted. Seizures have occurred.
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.
   Inhalation
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
1494
Response guide
Hazard class
5.1
Packing Group
II
 
USCG CHRIS Code
SBR
 
HS Code
2829 90 40
 
Std. Transport #
4918743