METOL

REFERENCE No: 135 – 11 – 005 -00.

A. FORMULA : HOC6H4NHCH3.1/2H2SO4                             F.Wt. : 344.38                       

B. OTHER NAMES

    1. Mono methyl para amino phenol sulphate.
    2. p-Methyl amino phenol sulphate.

C. SPECIFICATIONS


1.

Appearance

White crystalline powder free from lumps and external visible impurities.

2.

Clarity of 25% solution in warm water

Clear and colourless, free from any suspended matter.

3.

Assay000(min)

99 %

4.

Volatile matter at 1050C                (Max)

0.3 %

5.

Para amino phenol  (Max)

1.0 %

6.

Dimethyl para phenylene diamine (sulphate)

To pass test

7.

Identity test

To pass test

8.

Ash content      (Max)

0.1 %

9.

Iron as Fe         (Max)

0.005 %

10.

Heavy metals as pb (Max)

0.001 %

11.

Transmittance of 2% aqueous solution between 400 – 465 millimicron  (Min)

96 %

12.

Practical test

Passes the test

D. QUANTITY OF SAMPLE REQUIRED FOR TEST : 1 kg.

E. MODE OF PACKING

           Packed in double polythene bags each 200 gauge, heat sealed separately and kept in a fibre drum, top covered and sealed.  The final packing should withstand hazards in transit.  All packaging in direct contact with contents shall be photographically inert.