Daicel Chemical Industries, Ltd.

Xingxi Zhou

Shogo Tomiyama

Yo Yamato

Jianzhou Wu

Kazuyuki Matsuoka

Takeshi Takahori

Kaoru Yamazaki

Provided is a basic metal nitrate suitable as an oxidizing agent for a gas generating agent, which is a basic metal nitrate having a good thermal stability and meeting at least one requirement of the following (a) to (d):

Basic metal nitrate, process for producing the same and gas generating agent composition

A process in which a basic metal nitrate is obtained in a high yield is provided. A process for producing a basic metal nitrate, which comprises adding an aqueous solution of a metal nitrate or an aqueous solution of a mixture of a metal nitrate and a water-soluble additive and an alkali solution to a reaction vessel in which a reaction solvent whose pH at 20&#xb0; C. is adjusted to 6 or less is present, and conducting the reaction with stirring.

Method for producing basic metal nitrate

There is provided a gas generating composition for an air bag which improves combustion behavior and enhances handling safety, generates a large amount of generating gas on combustion, reduces amount generated of mist, and can downsize and reduce weight of a gas generator itself. The gas generating composition for an air bag comprises (a) a guanidine derivative compound, (b) a phase stabilized ammonium nitrate and (c) a silicon compound acting as a pressure exponent controller or a detonation suppressing agent.

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Himeji, Japan

Xingxi Zhou