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Potassium Sodium Tartrate IP BP USP ACS FCC Food grade Manufacturers
For MSDS Sheet Click MSDS of Potassium Sodium Tartrate IP BP USP ACS FCC Food grade Manufacturers
Potassium Sodium Tartrate Tetrahydrate BP
Potassium Sodium
Tartrate Tetrahydrate
C4H4KNaO6,4H2Oıı282.2ıı6381-59-5
DEFINITION
Potassium sodium (+)-(2R,3R)-2,3-dihydroxybutanedioate
tetrahydrate.
Content
98.0 per cent to 101.0 per cent (anhydrous substance).
CHARACTERS
Appearance
White or almost white, crystalline powder or
colourless, transparent crystals.
Solubility
Very soluble in water, practically insoluble in
alcohol.
IDENTIFICATION
A. It complies with the test for specific optical rotation.
B. It gives reaction of
tartrates.
C. It gives reaction of potassium.
D. It gives reaction of sodium.
TESTS
Solution S
Dissolve 5.000 g in
carbon dioxide-free water, prepared from
distilled water, and dilute to 100.0 ml with the same solvent.
Appearance of solution
Solution S is clear and
colourless.
Acidity or alkalinity
To 5 ml of solution S, add 0.1 ml of
phenolphthalein solution.
Not more than 0.5 ml of 0.0 M hydrochloric acid or 0.01 M
sodium hydroxide is required to change the colour of the indicator.
Specific optical rotation
+ 28.0 to + 30.0 (anhydrous substance), determined on solution S.
Chlorides
Maximum 100 ppm.
Sulphates
Maximum 50
ppm.
Ammonium
Maximum 40
ppm.
Barium and oxalates
To 5 ml of solution S, add 3 ml of
calcium sulphate solution R. Allow to stand for 5 min. Any
opalescence in the solution is not more intense than that in a mixture
of 3 ml of calcium sulphate solution and 5 ml of
distilled water.
Calcium
Maximum 200 ppm.
Heavy metals
Maximum 10 ppm.
Water
24.0 per cent to 26.5 per cent, determined on 50.0 mg.
Potassium Sodium Tartrate USP
Potassium Sodium Tartrate
C4H4KNaO6·4H2O 282.22
Butanedioic acid, 2,3-dihydroxy-,
[R-(R*,R*)]-, monopotassium
monosodium salt, tetrahydrate.
Monopotassium monosodium tartrate tetrahydrate [6100-16-9; 6381-59-5]
Anhydrous 210.16 [304-59-6]
Potassium Sodium Tartrate contains not less than 99.0 percent and not more than 102.0 percent of C4H4KNaO6, calculated on the anhydrous basis.
Identification—
A: Ignite it: it emits the odor of burning sugar and leaves a
residue that is alkaline to litmus and that effervesces with acids.
B: To 10 mL of a solution (1 in 20)
add 10 mL of 6 N acetic
acid: a white, crystalline precipitate is formed within 15
minutes.
C: A solution (1 in 10) responds to the tests for
Tartrate.
Alkalinity— A solution of 1.0 g in 20
mL
of water is alkaline to litmus, but after the addition of 0.20
mL of 0.10 N sulfuric acid no pink color is
produced by the addition of 1 drop of phenolphthalein TS.
Water: between 21.0% and 27.0%.
Limit of ammonia— To pass the test
Heavy metals: 0.001%.
Sodium Potassium Tartrate FCC
Potassium Sodium Tartrate; Rochelle
Salt; Seignette
Salt
KOOCCH(OH)CH(OH)COONa·4H2O
C4H4KNaO6·4H2O Formula wt 282.22
INS: 337 CAS: [304-59-6]
DESCRIPTION
Sodium Potassium
Tartrate occurs as
colorless crystals or as a white, crystalline powder. As it effloresces
slightly in warm, dry air, the crystals are often coated with a white
powder. It is a salt of L(+)-tartaric acid.
One gram dissolves in 1 mL of water. It is
practically insoluble in alcohol.
Function:
Buffer; sequestrant.
REQUIREMENTS
Identification:
A. Upon ignition, a sample emits the odor of burning sugar and
leaves a residue that is alkaline to litmus and that effervesces with
acids.
B. Add 10 mL of acetic
acid to 10 mL of a 1:20 aqueous solution.
A white, crystalline precipitate forms within 15 min.
C. A1:10 aqueous
solution gives positive
tests for Tartrate.
Assay: Not less than 99.0% and not more than 102.0% of
C4H4KNaO6·4H2O after drying.
Alkalinity:
Passes test.
Lead: Not more than 2 mg/kg.
Water: Between 21.0% and 26.0%.
ACS Specifications
American Chemical Society
Potassium Sodium Tartrate Tetrahydrate ACS
2,3-Dihydroxybutanedioic Acid, Potassium
Sodium Salt, Tetrahydrate
KNaC4H4O6-4H2O
Formula Wt 282.22
CAS Number 6381-59-5
REQUIREMENTS
Assay: 99.0-102.0%
KNaC4H4O6 .
4H2O
pH of a 5% solution: 6.0-8.5 at 25C
MAXIMUM ALLOWABLE
Insoluble matter ........... 0.005%
Chloride (Cl) ............... 0.001%
Phosphate (PO4)
........ 0.002%
Sulfate (SO4) .............. 0.005%
Ammonium (NH4)
...... 0.002%
Calcium (Ca) .............. 0.005%
Heavy metals (as
Pb) .. 5 ppm
Iron (Fe) ..................... 0.001%
Potassium Sodium Tartrate BP IP Sodium Potassium Tartrate USP ACS Analytical Reagent FCC food grade Manufacturers:
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
