1-Amino-2-naphthol-4-sulphonic acid AR 25GM | |||
20075SG025 | 909830304GW | ||
AR | 9098303 | ||
116-63-2 | 94676 | ||
NH2C10H5(OH)SO3H | July 2023 | ||
239.26 | June 2028 | ||
Sr.No. | Test | Result | Specification |
---|---|---|---|
1 | Description | Grayish pink crystalline powder. | Grayish pink crystalline powder. |
2 | Solubility | Complies | Insoluble in cold water and alcohol,Soluble in alkali. |
3 | Assay (acidimetric, after drying) | 99.13% | min. 98.00% |
4 | Sensitivity to Phosphate | Complies | Passes test |
5 | Loss on drying,105°C | 4.03% | 5.00% max. |
6 | Residue on ignition | 0.06% | 0.10% max. |
7 | Sodium hydroxide soln insoluble matter | 0.07% | 0.10% max. |
8 | Sulphate(SO4) | Less than 0.20% | 0.20% max. |
9 | Copper(Cu) | Not detected | 0.005% max. |
10 | Iron(Fe) | Not detected | 0.005% max. |
11 | Lead(Pb) | Not detected | 0.01% max. |
12 | Chloride(Cl) | Less than 0.01% | 0.01% max. |
Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |