| 摘要 |
Disclosed is an antirust agent for protecting the surface of a metal member from rust while maintaining the surface clean during long-time storage. Also disclosed is a method for preventing rust. Specifically disclosed is an antirust agent characterized by containing a hydroxylamine compound represented by the formula (1) below or a hydrazine compound represented by the formula (2) below and a water-absorbing resin. Also disclosed is an antirust obtained by wrapping the antirust agent with an air-permeable material. Further disclosed is a method for preventing rust which is characterized by storing a metal member in a gas-barrier container together with the wrapped antirust agent. In the formula (1) below, R1, R2 and R 3 respectively represent a hydrogen atom, an alkyl group having 1-6 carbon atoms or an alkenyl group having 2-4 carbon atoms; and these groups may have a substituent. In the formula (2) below, R1, R2, R3 and R4 respectively represent a hydrogen atom, an alkyl group having 1-6 carbon atoms or an alkenyl group having 2-4 carbon atoms; and these groups may have a substituent.
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