国内成人免费视频,精品国产乱码久久久人妻,亚洲一区二区av,9l国产在线高清视频

Physical and chemical properties: White crystalline powder, pink crystal with trace iron ion, decomposition at high temperature, soluble in water and ethanol, soluble in ether, melting point120°C
Product quality:

To use: This product is used as albumin reagent and iron colorimetric reagent, as a strong intermediate in dyes, surfactants, catalysts and medicine, and also as lubricant additive.