American Molecules - Ammol.org USA

Kaolin Light Heavy and Natural USP NF FCC Food Grade Supplier Exporter Manufacturers' Representative

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Kaolin Light Heavy and Natural
CAS Number: 1332-58-7

Molecular Formula: Varies
Molecular Weight: Varies

Kaolin Light Heavy and Natural Suppliers
Kaolin Light Heavy and Natural

Kaolin USP NF Grade Specifications

Kaolin is a native hydrated aluminum silicate, powdered and freed from gritty particles by elutriation.

Identification: Mix 1 g with 10 mL of water and 5 mL of sulfuric acid in a porcelain dish. Evaporate the mixture until the excess water is removed, and continue heating the residue until dense, white fumes of sulfur trioxide appear. Cool, cautiously add 20 mL of water, boil for a few minutes, and filter: there remains on the filter a gray residue (impure silica). The filtrate responds to the tests for Aluminum.
Microbial limits: It meets the requirements of the test for absence of Escherichia coli.
Loss on ignition: Ignite between 550 and 600C: it loses not more than 15.0% of its weight.
Acid-soluble substances: Digest 1.0 g with 20 mL of 3 N hydrochloric acid for 15 minutes, and filter: 10 mL of the filtrate, evaporated to dryness and ignited, leaves not more than 10 mg of residue (2.0%).
Carbonate: Mix 1.0 g with 10 mL of water and 5 mL of sulfuric acid: no effervescence occurs.
Iron: Triturate 2.0 g in a mortar with 10 mL of water, and add 0.50 g of sodium salicylate: the mixture does not acquire more than a slight reddish tint.
Lead: To 1.0 g contained in a centrifuge tube add 10 mL of 1 N nitric acid, and digest for 1 hour in a boiling water bath. Centrifuge until the solids are completely separated, and pour the supernatant into a 100-mL volumetric flask. Add 5 mL of 1 N nitric acid to the Kaolin, mix, and digest for 15 minutes in a boiling water bath. Centrifuge, and add the supernatant to the previous extract in the volumetric flask. Dilute with water to volume. A 50-mL portion of this solution contains not more than 5 microgm of lead (corresponding to not more than 0.001% of Pb) when tested as directed in the test for Lead 251, using 3 mL of Ammonium Citrate Solution, 1 mL of Potassium Cyanide Solution, and 500 microL of Hydroxylamine Hydrochloride Solution.


Kaolin FCC Food Grade Specifications
China Clay
CAS 332-58-7

DESCRIPTION
Kaolin occurs as a fine, white to yellow-white or gray powder that becomes darker when moistened. It is a purified clay consisting mainly of alumina, silica, and water. It is insoluble in water, in alcohol, in dilute acids, and in alkali solutions.
Function: Anti-caking agent.

REQUIREMENTS
Identification: Mix 1 g of sample with 10 mL of water and 5 mL of sulfuric acid in a porcelain dish, and evaporate until the water is removed. Continue heating until dense, white fumes of sulfur trioxide evolve, then cool, and cautiously add 20 mL of water. Boil for a few minutes, and filter. A gray residue of silica remains on the filter. Add 6 N ammonium hydroxide to a portion of the filtrate. A gelatinous, white precipitate of aluminum hydroxide forms that is insoluble in an excess of 6 N ammonium hydroxide.
Acid-Soluble Substances: Not more than 2.0%.
Arsenic: Not more than 3 mg/kg.
Carbonate: Passes test.
Iron: Passes test.
Lead: Not more than 10 mg/kg.
Loss on Ignition: Not more than 15.0%.
Sulfide: Passes test.

We also supply Kaolin Light Heavy and Natural of BP Ph Eur Grade.

Please visit SDS Safety Data Sheet of Kaolin Light Heavy and Natural Suppliers.

American Molecules, also known as ammol.org is a distributor, supplier and manufacturers' representative of all types of Pharmaceuticals, Functional Ingredients, Excipients and Specialty Chemicals in Texas USA. Our principals manufacture supply and export USP NF BP, Ph Eur, etc grades of chemicals pure and reagent grade, mineral fortifiers, FCC food grade. Tailor made particle size and customized specifications are offered. The principal's facility is having one or more of the certifications like FDA approval and GLP, cGMP, ISO9001, ISO14001, ISO/IEC 17025, ISO22000, FSSC 22000, ISO45001, FSSAI, Kosher, HALAL, COPP, WHO-GMP certified and Written Confirmation (WC) for export to Europe is available. The manufacturers suppliers and exporters observe WHO Good Manufacturing Practices and Good Laboratory Practices.

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Suppliers and Manufacturers' Representative:
American Molecules - Ammol.org USA
9910 Bent Oak Dr
Houston, TX 77040, USA
Call Toll Free: 1-855-55-AMMOL 1-855-552-6665
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