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Sodium Carbonate BP USP NF ACS Analytical Reagent FCC Food grade Manufacturers
For MSDS Sheet Click MSDS of Sodium Carbonate BP USP IP ACS Analytical Reagent FCC Food grade Manufacturers
British Pharmacopoeia 2009
Sodium Carbonate Decahydrate BP
Na2CO3-10H2O -- 286.1 -- 497-19-8
DEFINITION
Content
36.7 per
cent to 40.0 per cent of Na2CO3.
CHARACTERS
Appearance
White or
almost white, crystalline powder or colourless, transparent crystals,
efflorescent.
Solubility
Freely
soluble in water, practically insoluble in ethanol (96 per cent).
IDENTIFICATION
A. Dissolve
1 g in water R and dilute to 10 ml with the same solvent. The solution is
strongly alkaline.
B. The
solution prepared for identification test A gives the reaction of carbonates.
C. The
solution prepared for identification test A gives reaction of sodium.
TESTS
Solution S
Dissolve
5.0 g in portions in a mixture of 5 ml of hydrochloric acid and 25 ml of
distilled water. Heat the solution to boiling and cool. Add dilute
sodium hydroxide solution until the solution is neutral and dilute to 50 ml
with distilled water.
Appearance of solution
The
solution is clear and not more intensely coloured than reference.
Dissolve
4.0 g in 10 ml of water.
Alkali
hydroxides and bicarbonates
Dissolve 1.0 g in 20 ml of water, add 20 ml of
barium chloride solution and filter. To 10 ml of
the filtrate add 0.1 ml of phenolphthalein solution. The solution does
not become red. Heat the remainder of the filtrate to boiling for 2 min. The
solution remains clear.
Chlorides
Maximum 50
ppm.
Sulphate
Maximum 100 ppm, determined on solution S.
Arsenic
Maximum 2
ppm, determined on 5 ml of solution S.
Iron
Maximum 20
ppm.
Heavy
metals
Maximum 20
ppm.
ASSAY
Dissolve
2.000 g in 25 ml of water. Titrate with 1 M hydrochloric acid,
using 0.2 ml of methyl
orange solution R as indicator. 1 ml of 1 M hydrochloric acid
is equivalent to 52.99 mg of Na2CO3.
British Pharmacopoeia 2009
Sodium Carbonate Monohydrate BP
Na2CO3-H2O -- 124.0 -- 5698-11-6
DEFINITION
Content
83.0 per
cent to 87.5 per cent of Na2CO3.
CHARACTERS
Appearance
White or
almost white, crystalline powder or colourless crystals.
Solubility
Freely
soluble in water, practically insoluble in ethanol (96 per cent).
IDENTIFICATION
A. Dissolve
1 g in water R and dilute to 10 ml with the same solvent. The solution is
strongly alkaline.
B. The
solution prepared for identification test A gives the reaction of carbonates.
C. The
solution prepared for identification test A gives reaction of sodium.
TESTS
Solution S
Dissolve
2.0 g in portions in a mixture of 5 ml of hydrochloric acid and 25 ml of
distilled water. Heat the solution to boiling and cool. Add dilute
sodium hydroxide solution until the solution is neutral and dilute to 50 ml
with distilled water.
Appearance of solution
The
solution is clear and not more intensely coloured than reference solution.
Dissolve
2.0 g in 10 ml of water.
Alkali hydroxides and bicarbonates
Dissolve 0.4 g in 20 ml of water R, add 20 ml of barium chloride solution
and filter. To 10 ml
of the filtrate add 0.1 ml of phenolphthalein solution. The solution does
not become red. Heat the remainder of the filtrate to boiling for 2 min. The
solution remains clear.
Chlorides
Maximum 125
ppm.
Sulphate
Maximum 250
ppm, determined on solution S.
Arsenic
Maximum 5
ppm, determined on 5 ml of solution S.
Iron
Maximum 50
ppm.
Dilute 5 ml
of solution S to 10 ml with water.
Heavy metals
Maximum 50
ppm.
ASSAY
Dissolve
1.000 g in 25 ml of water R. Titrate with 1 M hydrochloric acid ,
using 0.2 ml of methyl orange solution R as indicator. 1 ml of 1 M hydrochloric acid
is equivalent to 52.99 mg of Na2CO3.
Sodium Carbonate USP NF
Na2CO3
(anhydrous) 105.99
Carbonic
acid, disodium salt.
Disodium carbonate [497-19-8]
Monohydrate 124.00
[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%.
Assay—
Transfer the anhydrous substance obtained in the test for Water
to a flask with the aid of 50 mL of water, add methyl red TS, and titrate
with 1 N sulfuric acid VS. Add the acid slowly, with constant stirring, until
the solution becomes faintly pink. Heat the solution to boiling, cool, and
continue the titration. Heat again to boiling, and titrate further as necessary
until the faint pink color is no longer affected by continued boiling. Each mL
of 1 N sulfuric acid is equivalent to 52.99 mg of Na2CO3.
Sodium Carbonate FCC
Soda Ash
Na2CO3
Formula wt, anhydrous 105.99
Na2CO3·H2O
Formula wt, monohydrate 124.00
Na2CO3·10H2O Formula wt, Decahydrate 286.14
INS: 500(i)
CAS: anhydrous [497-19-8]
CAS:
monohydrate [5968-11-6]
CAS:
decahydrate [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 32°.
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 ACS
Reagent Chemicals
ACS Specifications
Sodium Carbonate Monohydrate
Na2CO3-H2O
Formula
Wt 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 ACS
Reagent Chemicals
ACS Specifications
Sodium Carbonate, Anhydrous
Na2CO3
Formula Wt 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 ACS, Alkalimetric Standard
Reagent Chemicals
ACS Specifications
Sodium Carbonate, Alkalimetric Standard
Na2CO3
Formula Wt 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%
Sodium Carbonate BP USP ACS Analytical Reagent FCC Food grade manufacturers at:
MUBY CHEMICALS GROUP
DONGRI-CHINCHBUNDER, MUMBAI 400009, INDIA
TEL: (OFFICE)
91-22-23770100, 91-22-23726950, 91-22-23774610, 23723564.
e-mail: info@mubychem.com
