Ammonium tetraborate

  • Ammonium boron oxide
  • Diammonium tetraborate
Formula
(NH4)2B4O7
Description
White, hygroscopic powder.
Uses
Fireproofing wood and textiles.

Registry Numbers and Inventories.
CAS
12007-58-8
EC (EINECS/ELINCS)
234-513-8
Merck
12,530
Swiss Giftliste 1
G-4481
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
B4H8N2O7
Formula mass
191.32
Solubility in water
Soluble.

Hazards and Protection.
Protection
Goggles, gloves and protective clothing.
Small spills/leaks
Sweep up. Avoid raising dust. Place in a bag and hold for waste disposal.
Incompatibilities
Reacts violently with potassium and acid anhydrides. Moisture sensitive.

Fire.
Fire fighting
Extinguish using water spray, carbon dioxide or dry chemical. Firefighters wear SCBA.
Hazards
Emits toxic fumes under fire conditions.

Health.
Poison_Class
4
Exposure effects
Irritating to eyes, skin, mucous membranes and upper respiratory tract. Target organs include the kidneys and the central nervous system. Possible congenital malformation to fetus based on laboratory animal studies. Deaths have been reported in infants from less than 5 grams and in adults from 5-20 grams.

First aid
 
   Ingestion
If swallowed, rinse mouth with water Seek medical attention
   Inhalation
If inhaled, remove to fresh air. If breathing is difficult, give oxygen. Artificial respiration may be given if breathing stops.
   Skin
Wash contact area thoroughly with plenty of water.

Transport.