俺来也色色-精品国产4P一区二区-裸体自慰写真-久久国产精品77777-一本之道DVD不卡视频-92成人-亚洲免费A片-伊人狼人在线视频-三级免费播放器-理论片国产+欧美,学习成人A片,J大大奶,黑人借宿NTR中文字幕

Hypophosphorous Acid

Hypophosphoric acid, also known as hypophosphite, is a colorless oily liquid or hygroscopic crystal, and is an inorganic acid. This product is a 50% aqueous solution. Density 1.493g/cm3. Melting point 26.5 ℃. Easy to dissolve in hot water, ethanol, and ether. Dissolve in cold water. When heated to 130 ℃, it decomposes into orthophosphate and phosphine (highly toxic). It is a strong reducing agent.