TABLE OF CONTENTS SYNONYMS: BARIO (Spanish); BARIUM, DENDRITIC PIECES; BARIUM, ELEMENTAL; BARIUM METAL; BARIUM, NONPYROPHORIC; BARIUM, PYROPHORIC; BARYUM (French); EINECS No. 231-149-1
IDENTIFICATION:
CAS: 7440-39-3
DOT ID: UN1400 (Barium); UN1854 (Barium alloy, pyrophoric)
Hazard Class or Division: 4.3 (DANGEROUS WHEN WET) (UN 1400); 4.2 (UN 1854)
ERG Guide: 138 (UN1400); 135 (UN1854)
Formula: Ba
RTECS No.: CQ8370000
Properties: Combustible, lustrous, silver-white, malleable solid. Odorless. Extremely reactive. Dangerous when wet; may cause explosive reaction.
Uses: To improve performance of acid batteries, a component of grey, and ductile irons, in the manufacture and deoxidizing of steel, copper, Fray's metal, other metals, and alloys; for nodularizing alloys; making paints.
HEALTH & SAFETY INFORMATION
IDLH: 50 mg[Ba]/m 3 as barium
The health effects of the different barium compounds depend on how well the compound dissolves in water. Barium compounds that do not dissolve well in water are not generally harmful and are often used by doctors for medical purposes. Those barium compounds that dissolve well in water may cause harmful health effects in humans. Fatal human dose of barium is 550 mg. Ingesting high levels of barium compounds that dissolve well in water over the short term has resulted in difficulties in breathing, increased blood pressure, changes in heart rhythm, stomach irritation, brain swelling, muscle weakness, damage to the liver, kidney, heart, and spleen. Symptoms may include vomiting, diarrhea, slow and irregular pulse, convulsive tremors, and muscular paralysis. Death may result in hours or a few days. The...
