Barium hydroxide

  • Barium hydrate
  • Barium anhydrous
Formula
Ba(OH)2
Structure
Description
A white powder.
Uses
In manufacture of alkali, glass, in synthetic rubber vulcanization, in corrosion inhibitors, drilling fluids, pesticides, boiler scale remedy, refining animal & vegetable oils, in softening water, fresco painting.

Registry Numbers and Inventories.
CAS
17194-00-2
EC (EINECS/ELINCS)
241-234-5
RTECS
CQ9200000
RTECS class
Other
UN (DOT)
3262
Merck
12,1006
Beilstein/Gmelin
8819 (G)
RCRA
D005
Swiss Giftliste 1
G-7806
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
BaH2O2
Formula mass
171.34
Melting point, °C
325
Decomposition point, °C
328
Density
2.18 g/cm3 (20 C)
Solubility in water
45 g/L (25 C)
Heat of fusion
13.8 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from strong acids.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Do not get on skin or in eyes. Do not ingest or inhale.
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 to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
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
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions.
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Acids.
Decomposition
None.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use extinguishing media appropriate to the surrounding fire. Substance is nonflammable. Extinguishing media: Substance is nonflammable; use agent most appropriate to extinguish surrounding fire.
Fire potential
Material itself does not burn or burns with difficulty.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
2
Exposure effects
Chronic inhalation and ingestion may cause effects similar to those of acute inhalation and ingestion.
   Ingestion
May be fatal if swallowed. Causes gastrointestinal tract burns. May cause respiratory failure. Causes severe pain, nausea, vomiting, diarrhea, and shock. May cause kidney failure.
   Inhalation
May cause severe irritation of the upper respiratory tract with pain, burns, and inflammation.
   Skin
May cause severe skin irritation. Causes skin burns.
   Eyes
Contact with liquid or vapor causes severe burns and possible irreversible eye damage. Vapors may cause eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
3262
Response guide
Hazard class
8
Packing Group
I; II; III