| Solubility
: |
Insoluble
in water, in alcohol and in solvent
ether |
| Chemical
Formula : |
Mg (CI8H35O2)2 |
| Identification
: |
A)
Freezing point of residue NLT 53'c
B) it gives reaction A of Magnesium
salts |
| Acidity
or alkalinity : |
NMT
0.05ml of 0.7m hcl or 0.1 m Naoh |
| Colour
of solution: |
solution
A is not more coloured than ref. |
| Clarity
and colourof solution of the fatty acids: |
solution
should be clear not more coloured than
ref. solution YSS |
| Acid
value of the fatty acids : |
195
to 210 |
| Barium
fatty acids: |
passes
IP std. |
| Free
stearic acid : |
NMT
3
|
| Zinc
stearate : |
No
violet ppt.s forms |
| Heavy
metal : |
NMT
20 ppm |
| Chloride
: |
NMT
250 PPM |
| Sulphate
: |
NMT
0.6 % |
| loss
of drying : |
NMT
6.0 % |
| Assay
: |
Mg
% 3.8 % to 5.0 % |
| Microbial
limits : |
A.
microbial count NMT 1000 / gms.
B.E. Coli. (as per USP) |
| Vissible
foreign or black particle : |
NMT
10 particles/ 10gm sample |
