配方类型:

TEXTILES

配方说明:

Cloth for Preventing Tarnishing of Silver (U.S. Patent 2,480,930)

配方组成:

A: Locust-Bean Gum/6 lb.
Cook together until uniform and cool
B: Silver Nitrate/59 lb.
Solution A (Above)/60 gal.
C: Sodium Ferrocyanide/46 lb.
Solution A (Above)/60 gal.
Water/120 gal.

配制方法:

Add C to B and homogenize to a thin cream. Keep alkaline by adding a little soda ash.
Use this to impregnate flannel or other soft cloth.