Ammonium hydrogen （CAS 1341-49-7）FC-106

Basic Information

Cas: 1341-49-7

Physical index

Security Information

Danger signs: GHS05, GHS06

Application instructions

Production method

The neutralization method is in a container made of lead or plastic, quantitatively pass the anhydrous hydrofluoric acid, mix it with the circulating mother liquor, cool it with cold water in the container jacket, and then slowly and intermittently circulate the liquid ammonia in a fine manner with constant stirring , Make it fully react. Congo red reagent is used to measure at any time during the operation. When the reagent is just brown as the end point, stop passing liquid ammonia. The reaction liquid is evaporated and concentrated until the liquid surface shows a crystalline film, and then cooled and crystallized, centrifuged to obtain a finished product of ammonium bifluoride, which is NH3+2HF→NH4HF2
use
Etching agent for carved glass, antiseptic, disinfectant, solvent for beryllium metal made of beryllium oxide, analytical reagent and surface treatment agent for silicon steel plate. It is also used for the production of ceramics and aluminum-magnesium alloy oxidants and the cleaning of boiler feed water system steam Reagents, organic synthetic fluorinating agents, electroplating solutions, reagents for extracting rare elements.