JMB zinc stearate

ZINC STEARATES

JMB produces both "commercial" and "pharmaceutical" grades of zinc stearate.

The specification for the commercial grade is as follows :-

Parameter

Limit(s)

Ash 13.0 - 14.5 %

Free fatty acid 2 % maximum

Moisture 1 % maximum

Bulk density 0.25 g cm-3 max

In the case of the pharmaceutical grade, the material conforms to the current BP / Ph. Eur. specification (1993 ) :-

Parameter
BP/Ph. Eur. limits

Assay 10.0 - 12.0 % Zn

Acid value of organic acid 195 - 210

Melting point of organic acid > 53 ºC

Chlorides passes BP test

Sulphates passes BP test

Lead content < 25 ppm Pb

Cadmium content < 5 ppm Cd

Acidity / alkalinity passes BP test

In the case of both of these products, normal packaging is in 20 kg nett multi-wall paper sacks, though material can be supplied in fibre drums if required.

STEARATES
MAIN PAGE

HOME
PAGE

Parameter	Limit(s)
Ash	13.0 - 14.5 %
Free fatty acid	2 % maximum
Moisture	1 % maximum
Bulk density	0.25 g cm-3 max

Parameter	BP/Ph. Eur. limits
Assay	10.0 - 12.0 % Zn
Acid value of organic acid	195 - 210
Melting point of organic acid	> 53 ºC
Chlorides	passes BP test
Sulphates	passes BP test
Lead content	< 25 ppm Pb
Cadmium content	< 5 ppm Cd
Acidity / alkalinity	passes BP test