无码少妇一区二区三区芒果_成熟丰满熟妇高潮xxxxx视频_久久免费看少妇高潮v片特黄_少妇性俱乐部纵欲狂欢少妇

Specification category： Characteristic：

Appearance and properties:Rose Red monoclinic crystal.
Relative density: 1.948 (25 ℃)
Melting point(℃): 96 ~ 98
Boiling point(℃): 420 (-7H2O)
Solubility: soluble in water, methanol, slightly soluble in ethanol.

Application：

It is used as galvanizing passivator, catalyst, paint, pigment and analytical reagent etc.

Technical indicators：