Ⅰ.Basic information

Chinese name: 氟化氢铵

Chinese alias: 酸式氟化铵、二氟化铵、酸性氟化铵

English name：ammonium bifluoride

English alias：ammonium hydrogen difluoride、Ammonium hydrogen fluoride，acid ammounium fluoride,ammonium acid fluoride,ammonium difluoride,bifloruro de amonio,ammonium the fluoric sour,ammonium hydrofluoride

Formula：NH4HF2

Molecular weight：57.04

UN No:1727

HS No: 2826191010

CAS No: 1341-49-7

Ⅱ.Physical property

1.appearance：white or colorless transparent orthorhombic crystal

2.character: deliquescent,easily soluble in water, slightly soluble In alcohol,slightly sour,easy to be decomposed when heated or boiled water, and it can corrode glass,toxic

3.Application：

①used in glass producing, etchant for frosted glass and frosting agent,used in glass’s deluster, frosting,etching agent;it can corrode glass.

②used as disinfectant and preservative for fermentation industry or making wine.

③used as surface treatment for all kinds of metals.

④used as dulling agent and polish for aluminium.

⑤used as rust remover for textile industry.

⑥used as cleaning agent for boiler.

⑦used in cizza for sand and stone surface in oil field.