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Sodium Carbonate Anhydrous Monohydrate Decahydrate
CAS Number: 497-19-8 Anhydrous, 5698-11-6 Monohydrate & 6132-02-1 Decahydrate
Molecular Formula: Na2CO3 Anhydrous
Molecular Weight: 105.99 Anhydrous
Sodium Carbonate Anhydrous Monohydrate Decahydrate
Sodium Carbonate USP NF Grade Specifications
Na2CO3 (anhydrous) 105.99
Disodium carbonate CAS 497-19-8
Monohydrate 124.00 CAS 5968-11-6
It is anhydrous or contains one molecule of water of hydration. It contains not less than 99.5 percent and not more than 100.5 percent of Na2CO3, calculated on the anhydrous basis.
Identification: It responds to the tests for Sodium 191 and for Carbonate.
Water: Dry about 2 g, accurately weighed, at 105 for 4 hours: the anhydrous form loses not more than 0.5%, and the hydrous form between 12.0% and 15.0%, of its weight.
Heavy metals: the limit is 0.001%.
Sodium Carbonate FCC Food Grade Specifications
Soda Ash
Na2CO3 Formula weight, anhydrous 105.99
Na2CO3-H2O Formula weight, monohydrate 124.00
Na2CO3-10H2O Formula weight, Decahydrate 286.14
INS: 500(i) CAS: anhydrous CAS 497-19-8
CAS: monohydrate CAS 5968-11-6
CAS: decahydrate CAS 6132-02-1
DESCRIPTION
It occurs as colorless crystals or as a white, granular or crystalline powder. It is anhydrous or may contain 1 or 10 molecules of water of hydration. It is freely soluble in water and insoluble in ethanol. Its solutions are alkaline to litmus. The anhydrous salt is hygroscopic, and the two hydrates are efflorescent. The decahydrate melts at about 32C.
Function: pH control.
REQUIREMENTS
Identification: A sample gives positive tests for Sodium and for Carbonate.
Assay: Not less than 99.5% and not more than 100.5% of Na2CO3 after drying.
Lead: Not more than 4 mg/kg.
Loss on Drying Anhydrous: Not more than 1%; Monohydrate: Between 12.0% and 15.0%; Decahydrate: Between 55.0% and 65.0%.
Sodium Carbonate Monohydrate Analytical Reagent Grade Specifications
Na2CO3-H2O
Formula Weight 124.00
CAS Number 5968-11-6
REQUIREMENTS
Assay: 99.5% Na2CO3-H2O min
Loss on drying at 150C: 13.0-15.0%
MAXIMUM ALLOWABLE
Insoluble matter: 0.01%
Chloride (Cl): 0.001%
Nitrogen compounds (as N): 0.001%
Phosphate (PO4): 5 ppm
Silica (SiO4): 0.005%
Sulfur compounds (as SO4): 0.004%
Ammonium hydroxide precipitate .. 0.01%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 5 ppm
Calcium (Ca): 0.03%
Magnesium (Mg): 0.005%
Potassium (K): 0.005%
Sodium Carbonate Anhydrous Analytical Reagent Grade Specifications
Na2CO3
Formula Weight 105.99
CAS Number 497-19-8
REQUIREMENTS
Assay (dried basis) min. 99.5% Na2CO3
MAXIMUM ALLOWABLE
Insoluble matter: 0.01%
Loss on heating at 285C: 1.0%
Chloride (Cl): 0.001%
Nitrogen compounds (as N): 0.001%
Phosphate (PO4): 0.001%
Silica (SiO4): 0.005%
Sulfur compounds (as SO4): 0.003%
Ammonium hydroxide precipitate: 0.01%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 5 ppm
Calcium (Ca): 0.03%
Magnesium (Mg): 0.005%
Potassium (K): 0.005%
Sodium Carbonate Alkalimetric Standard Analytical Reagent Specifications
Na2CO3
Formula Weight 105.99
CAS Number 497-19-8
NOTE. For use as an alkalimetric standard this reagent should be heated at 285C for 2h.
REQUIREMENTS
Assay (dried basis): 99.95-100.05% Na2CO3
MAXIMUM ALLOWABLE
Insoluble matter: 0.01%
Loss on heating at 285C: 1.0%
Chloride (Cl): 0.001%
Nitrogen compounds (as N): 0.001%
Phosphate (PO4): 0.001%
Silica (SiO4): 0.005%
Sulfur compounds (as SO4): 0.003%
Ammonium hydroxide precipitate: 0.01%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 5 ppm
Potassium (K): 0.005%
Calcium (Ca): 0.02%
Magnesium (Mg): 0.004%.
We also supply Sodium Carbonate of BP Ph Eur Grade.
Please visit SDS Safety Data Sheet of Sodium Carbonate Anhydrous Monohydrate Decahydrate 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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