| Appearance |
A white or yellowish-white powder:odourless
|
Solubility |
Almost entirely soluble in twice its weight of water yielding a very viscous,slightly acidic solution which is slightly glairy and when diluted with more water and solvent to stand, yields a very small amount of gummy deposit; practically insoluble
|
| Identification as per IP |
Passes test A, B and C
|
Sterculia gum and agar |
The particles should not acquires a red colour after irrigation with water
|
| Agar and tragacanth |
No precipitate should be formed
|
Starch and dextrin |
No blue or brown colour should be produced
|
| Water insoluble matter |
The residue weight does not exceed 50 mg
|
Sucrose and fructose |
No yellow or pink colour should be developed
|
| Microbial contamination |
1.0 g should free from Escherichia coli
|
Sulphated ash |
Max 5.0%
|
| Acid insoluble ash |
Max 1.0%
|
Loss on drying |
Max 15.0% (at 105°C on 1 gm sample)
|