AMMONIUM THIOCYANATE                                             

REF.NO: 60-10-313-00

A

FORMULA : NH4SCN

F.WT : 76.12

B

                                                    SPECIFICATIONS

1

Appearance

Colourless crystals free from any  foreign matter

2

Assay as NH4SCN

Min : 98%

3

Clarity of 20% aqueous solution

Clear and colourless free from any sediments and turbidity.

4

pH of 20% aqueous solution at 20oC

4.5 – 5.5

5

Non-volatile matter

Max : 0.06%

6

Clarity of 10% solution in methanol

Clear and colourless free from any sediments and turbidity.

7

Chlorides as Cl

Max : 0.009%

8

Iron as Fe

Max : 0.0002%

9

Heavy metals as Pb

Max : 0.0005%

10

Reducing substance to AgNO3

Passes the test

11

Reducing substance to Gold chloride

Passes the test

12

Sulphates as SO4

Max : 0.005%

13

Practical test

Passes the test

C

Quantity of sample required for test

500gms

D

Mode of Packing

Packed in wide mouthed airtight brown glass bottle, with polythene insert and polythene screw cap. The bottle shall be completely covered with polythene cover and sealed at the top. The final packing should with stand hazards in transit.