单氟磷酸,是一种
无机化合物,化学式为H2PO3F,常用作金属去污剂、化学上光剂、催化剂、金属表面防腐剂等。
稳定性:70℃时固化,在中性或者弱碱性溶液中缓慢水解。纯酸或者浓溶液腐蚀大多数金属和合金,包括不锈钢。对
银、
铂和铝呈惰性。稀溶液可以腐蚀金属铝和
钛。
将48.467g热的黏稠的
偏磷酸倒入一个100mL的铂瓶中,无水
HF气体通过冰冷却的铜管冷凝下来,将11.734g液态氟化氢加入到偏磷酸中,使偏磷酸的量比化学计量的量多出5.4%。密封的铂瓶置于室温下于特殊振荡器中振摇7天,得到澄清油状液体,未反应的偏磷酸粘于瓶壁上。
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S27:Take off immediately all contaminated clothing.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the lable where possible).
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed.
R34:Causes burns.