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Definition of SnBr4
SnBr4, also known as stannic bromide or Tin(IV) bromide in English, is a chemical substance with the molecular formula SnBr4. It consists of one tin atom (Sn) and four bromine atoms (Br). Its molar mass is 438.33 g/mol. It exists as ions with Sn having an oxidation number of +4 and Br having an oxidation number of -1. -
Properties of SnBr4:
2.1 Physical properties of SnBr4
SnBr4 is a solid substance, white in color and odorless. Its pH is not determined as it is a water-insoluble solid.
2.2 Chemical properties of SnBr4
SnBr4 reacts with water to form SnO2 and HBr. It also reacts with alkali metals to form the respective bromide salts. -
Common chemical equations of SnBr4
SnBr4 reacts with alkali metals such as Na, K to form bromide salts like NaBr, KBr.
SnBr4 + 4Na -> Sn + 4NaBr
SnBr4 + 4K -> Sn + 4KBr
In acidic environment, SnBr4 forms HBr:
SnBr4 + H2O -> SnO2 + 4HBr
SnBr4 does not react with non-metals and salts. -
Preparation of SnBr4
4.1 Laboratory preparation of SnBr4
SnBr4 can be prepared by reacting Br2 with Sn:
Sn + 2Br2 -> SnBr4
4.2 Industrial preparation of SnBr4
SnBr4 is not produced on an industrial scale as it lacks widespread applications in the industry.