潘金莲被吸乳揉到高潮的视频,久久99久久99精品免观看,在电影院里拨开内裤挺进,护士交换粗吟配乱大交动态图

Package: 25 kgs drum

Uses : Applicable to the production of medicines and fine chemicals

Molecular Structure:

Product description: Potassium Borohydride Potassium tetrahydroborate Molecular Formula: KBH4 Molecular Weight: 53.94 CAS: 13762-51-1 EINECS: 237-360-5 Purity: 98% min Appearance: white crystalline powder or granule Properties: Innocuous and flavourless. Specific gravity is 1.178. It will be decomposed during 500°C and has no absorption of moisture. It is stable in the air and dissolves in water and liquid ammonia, less to dissolve in methyl alcohol and ethanol. It hardly dissolves in aether, benzene, etc.. Application: Applicable to the production of medicines and fine chemicals; the reductions of carbonyl and superoxide; The removal of the color, bad smell &oxide parent body from organic chemicals; the recovery and preparation of precious & heavy metals and rare earth metals; the recovery and preparation of catalysts. Packing: 25kgs steel drum