4-91

 

 

AMMONIUM THIOCYANATE

 

SYNONYM: THIOCYANIC ACID, AMMONIUM SALT; AMMONIUM SULFOCYANATE

 

FORMULA: NH4SCN

 

M. W.: 76.116

 

CAS NO.: 1762-95-4

 

GRADE: TECH. GRADE

 

DESCRIPTION: A COLORLESS CRYSTALLINE SOLID THAT IS SOLUBLE IN WATER, ALCOHOL, ACETONE, AND AMMONIA; MELTS AT 149.6°C.

 

SPECIFICATIONS:

ITEM

HIGH

FIRST

QUALIFIED

NH4SCN

97.0% MIN.

96.0% MIN.

95.0% MIN.

PH VALUE

4.5-6

4.5-6

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NH4Cl

0.10% MAX.

0.10% MAX.

0.20% MAX.

(NH4)2SO4

0.06% MAX.

0.10% MAX.

0.20% MAX.

BURNING RESIDUES

0.10% MAX.

0.15% MAX.

0.20% MAX.

HEAVY METAL (Pb)

0.0020% MAX.

0.0020% MAX.

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Fe

0.0005% MAX.

0.0080% MAX.

0.0020% MAX.

S

0.0050% MAX.

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USES: USED IN ANALYTICAL CHEMISTRY AND FOR MANY INDUSTRIAL PURPOSES, SUCH AS FABRIC DYEING, ELECTROPLATING, AND STEEL PICKLING, AND IN PHOTOGRAPHIC CHEMICALS AND FREEZING SOLUTIONS.

 

PACKING: IN 25 KG PLASTIC WOVEN BAG WITH PLASTIC LINNING.