|
barium chemical properties |
melting point |
725 °c(lit.) |
boiling point |
1640 °c(lit.) |
density |
3.6 g/ml at 25 °c(lit.) |
storage temp. |
water-free area |
form |
rod |
merck |
13,967 |
stability: |
stability reacts vigorously or violently with acids, water, tetrachloromethane, small halogenated hydrocarbons. should be stored under an inert material such as petroleum ether to exclude air. flammable. |
cas database reference |
7440-39-3(cas database reference) |
|
barium usage and synthesis |
chemical properties |
yellow-white, slightly lustrous solid |
general description |
barium alloy, pyrophoric is mixture of barium and other metals or nonmetallic elements to improve the specific usefulness of barium. barium alloys are a solid and can ignite spontaneously in contact with air. barium is toxic and products given off in fire could be very toxic. |
air & water reactions |
finely divided metal powder is pyrophoric, ignites spontaneously in air [bretherick 1979 p. 170-171]. alloys containing a substantial proportion of barium rapidly decomposed water. the heat of the reaction is sufficient that the evolved hydrogen may ignite [lab. govt. chemist 1965]. |
reactivity profile |
alloys containing a substantial amount of barium react violently with acids [lab. gov. chemist 1965]. |
health hazard |
fire will produce irritating, corrosive and/or toxic gases. inhalation of decomposition products may cause severe injury or death. contact with substance may cause severe burns to skin and eyes. runoff from fire control may cause pollution. |
fire hazard |
flammable/combustible material. may ignite on contact with moist air or moisture. may burn rapidly with flare-burning effect. some react vigorously or explosively on contact with water. some may decompose explosively when heated or involved in a fire. may re-ignite after fire is extinguished. runoff may create fire or explosion hazard. containers may explode when heated. |
|
barium preparation products and raw materials |
hennan sunlake enterprise corporation is located in henan province , the central plain of china , which enjoys favorable geogeaphical position and convenient transportion, the com[any was established in june. 1998 , until now having more than 18 years experience in manufacturing & exporting chemical raw material .
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