Scientific name "tetrasodium hexacyanoferrate decahydrate", sodium salt of iron cyano complex, light yellow crystal. For chemical raw materials, the current * standard is Yb / T 5324-2006. There are also some lost crystal water, also known as sodium xanthate.

Physical property data
Character lemon yellow monoclinic crystal system prismatic or acicular crystal.

Relative density 1.458
Soluble in water, insoluble in alcohol.