Zinc Stearate

JMB offers both "commercial" and "high purity" grades of zinc stearate.

The specification for the commercial grade is as follows:

Zinc Stearate MF

Parameter Limit(s)
Ash 13.2 - 13.8%
Free fatty acid 2.0% max
Moisture 1.0% max
Soluble salts 0.5% max
Melting point 118 - 122°C
Bulk density 230 - 270 g/l
Sieve residue (270 mesh, 53@m) 5% max

Packaging: 20 kg paper sacks, 800 kg per pallet

Zinc Stearate MF HQ

Parameter Limit(s)
Assay 10.0 - 12.0% Zn
Chlorides passes test
Sulphates passes test
Lead content < 25 ppm Pb
Cadmium content < 5 ppm Cd
Acidity/alkalinity passes test

Packaging: 20 kg paper sacks, 800 kg per pallet

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Calcium Stearate

JMB produces both commercial and high-purity grades of magnesium stearate that comply with the latest European Pharmacopeia specifications and also a food grade that complies with EC Regulation 231/2012 (E470a).

The specification for the commercial product is as follows:

Parameter Limit(s)
Ash 10 - 11%
Free fatty acid 2% max
Moisture 3% max
Bulk density 0.2 - 0.3 g cm-3

 

For the specifications of our food and pharmaceutical grades of magnesium stearate, please get in touch with our sales office directly on 0044 (0)1782 744171 or This email address is being protected from spambots. You need JavaScript enabled to view it.

These materials have been approved as Kosher by the Manchester Beth-Din and as Halal by The Muslim Food Board.

As for all JMB stearates, normal packaging is in 20 kg nett multi-wall paper sacks, though material can be supplied in fibre drums in required.

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Magnesium Stearate

JMB produces both commercial and high-purity grades of magnesium stearate that comply with the latest European Pharmacopeia specifications and also a food grade that complies with EC Regulation 231/2012 (E470b).

The specification for the commercial grade is as follows:

Parameter Limit(s)
Ash 7.5 - 8.5%
Free Fatty Acid 2% max
Moisture 4.0% max
Bulk density 0.2 - 0.3 g cm-3

For the specifications of our food and pharmaceutical grades of magnesium stearate, please get in touch with our sales office directly on 0044 (0)1782 744171 or This email address is being protected from spambots. You need JavaScript enabled to view it.

These materials have been approved as Kosher by the Manchester Beth-Din and as Halal by The Muslim Food Board.

Normal packaging is in 20 kg nett multi-wall paper sacks, though material can be supplied in fibre drums if required.

Back to Metallic Stearates