AMMONIUM BIFLUORIDE  

 

 

FORMULAR: NH4HF2  

 

 

M. W.: 57.05  

 

 

CAS NO.: 1341-49-7  

 

 

H.S. NO.: 2826.1100.30  

 

 

U.N. NO.: 1727  

 

 

IMO CLASS: 8  

 

 

DESCRIPTION: COLOURLESS OR WHITE TRANSPARENT CRYSTALLINE WITH LITTLE SOUR; SPECIFIC GRAVITY 1.52 (20/4℃); BOILING POINT 240℃; MELTING POINT 124.6℃, IT IS EASY TO DELIQUESCENCE IN AIR, AND EXTREMELY EASY TO DISSOLVE IN COLD WATER. IT DISSOLVES SLIGHTLY IN ALCOHOL. UNDER THE HIGHER TEMPERATURE, IT CAN SUBLIMATE AND IT HAS CORROSIVENESS TO GLASS.  

 

 

GRADE: TECH GRADE  

 

 

SPECIFICATIONS:  

 

PURITY (NH4HF2)  

98.0% MIN.  

97% MIN.  

LOSS ON DRYING  

2.0% MAX.  

3.0% MAX.  

RESIDUE ON IGNITION  

0.2% MAX.  

0.2% MAX.  

SULPHATE  

0.1% MAX.  

0.1% MAX.  

Ammonium Fluorosilicate [(NH4)2SiF6]  

0.7% MAX.  

2.0% MAX.  

 

 

USES: IT IS USED IN ACID TREATMEALING OF OIL FIELD AND MAKING MAGNESIUM AND MAGNESIUM ALLOY. IT CAN BE USED AS LIGHT-ELIMINATING, FROST-PRODUCING AND ETCHANT OF GLASS. IT CAN ALSO BE USED AS PROTECTIVE AGENT OF WOOD, BRIGHTENING AGENT OF ALUMINUM, RUSTREMOVAL AGENT WHICH USED IN TEXTILE INDUSTRY AND ANALITICAL REAGENT ETC. AGAIN, IT CAN BE USED IN ELECTROPLATE AND ELECTRONICS INDUSTRY.  

 

 

PACKING: 1N 25KG NET PLASTIC WOVEN BAG, 20MT INTO 1X20’FCL  

 

 

STORAGE: KEEP AWAY FROM HEAT AND FLAME. KEEP CONTAINER CLOSED WHEN NOT IN USE. STORE IN A TIGHTLY CLOSED CONTAINER. STORE IN A COOL, DRY, WELL-VENTILATED AREA AWAY FROM INCOMPATIBLE SUBSTANCES. CORROSIVES AREA. KEEP AWAY FROM ACIDS. KEEP AWAY FROM STRONG BASES. STORE PROTECTED FROM MOISTURE.