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 |
--- |
|
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. |
--- |
|
Fe |
0.0005% MAX. |
0.0080% MAX. |
0.0020% MAX. |
|
S |
0.0050% MAX. |
--- |
--- |
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.