Potassium Bitartrate, Potassium Sodium Tartrate, Potassium Tartrate, Sodium Tartrate USP NF, BP, ACS Reagent, FCC Food Grade Manufacturers Exporters

Aadhunik Industries is a manufacturing group company. Aadhunik Industries is pioneer manufacturers of Sodium Tartrate, Specialty Chemicals, Pharmaceutical Excipients, Food Fragrance & Flavor chemicals in India. It has toll manufacturers and representatives in UAE, Europe, Canada & USA and agents & customers in all countries like USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Uganda, Turkey, Mexico, Brazil, Chile, Argentina, Dubai, Netherlands, Italy, Spain, Germany, Portugal, France, Malaysia, Indonesia, Thailand, Korea, Japan, Russia etc.

Aadhunik Industries and/or associated units are FDA-GMP certified, Halal and/or Kosher certified, REACH registered, ISO-9001, ISO-22000 HACCP certified. We offer crystals granules in precise micron or mesh size as per buyers needs. We offer very high purity standards as per specifications required.

Sodium Tartrate USP NF Grade
C4H4Na2O6.2H2O 230.08
Disodium L-tartrate.
Disodium (+)-2,3-dihydroxybutanedioic acid [CAS 868-18-8].
Sodium Tartrate contains not less than 99.0 percent and not more than 100.5 percent of C4H4Na2O6.2H2O, calculated on the dried basis.

Identification:
A: Responds to the tests for Sodium.
B: Responds to the tests for Tartrate.
pH: between 7 and 9 (1 in 10 solution).
Loss on drying: Dry it at 150 for 3 hours: it loses between 14.0% and 17.0% of its weight.
Heavy metals:0.002%.
Limit of oxalate: Dissolve 1.0 g of Sodium Tartrate in 10 mL of water, then add 5 drops of diluted acetic acid and 2 mL of calcium chloride: no turbidity develops within 1 hour. Not more than 0.1% is found.
Assay: Transfer about 250 mg of Sodium Tartrate, accurately weighed and previously dried at 150C for 3 hours, to a 250-mL beaker, and dissolve by stirring and heating to near the boiling point in 150 mL of acetic acid. Cool the solution to room temperature. Titrate with 0.1 N perchloric acid (in glacial acetic acid), determining the endpoint potentiometrically. Perform a blank determination, and make any necessary adjustments. Each mL of 0.1 N perchloric acid is equivalent to 9.703 mg of C4H4Na2O6.

Sodium Tartrate FCC Food Grade
Disodium Tartrate; Disodium L-Tartrate
NaOOCCH(OH)CH(OH)COONa·2H2O
C4H4Na2O6·2H2O Formula weight 230.08
INS: 335 CAS 868-18-8

DESCRIPTION
Sodium Tartrate occurs as transparent, colorless crystals. It is the disodium salt of L(+)-tartaric acid. One gram dissolves in 3 mL of water. It is insoluble in alcohol. The pH of a 1:20 aqueous solution is between 7 and 9. Upon ignition, it emits the odor of burning sugar and leaves a residue that is alkaline to litmus and that effervesces with acids.
Function: Sequestrant.

REQUIREMENTS
Identification: A sample gives positive tests for Sodium and for Tartrate
Assay: Not less than 99.0% and not more than 100.5% of C4H4Na2O6 after drying.
Lead: Not more than 2 mg/kg.
Loss on Drying: Between 14.0% and 17.0%.

Sodium Tartrate Dihydrate ACS Reagent
2,3-Dihydroxybutanedioic Acid, Disodium Salt, Dihydrate
(CHOHCOONa)2-2H2O --- Formula Weight 230.08 --- CAS Number 6106-24-7
NOTE. This reagent is suitable for standardization of Karl Fischer reagent as used for the determination of trace amounts of water (less than 1%).

REQUIREMENTS
Assay: 99.0-101.0%
Na2C4H4O6 . 2H2O
Loss on drying at 150C: 15.61%-15.71%
pH of a 5% solution: 7.0-9.0 at 25C

MAXIMUM ALLOWABLE
Insoluble matter: 0.005%
Chloride (Cl): 5 ppm
Phosphate (PO4): 5 ppm
Sulfate (SO4): 0.005%
Ammonium (NH4): 0.003%
Calcium (Ca): 0.01%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 0.001%

Potassium Bitartrate USP
Potassium Bitartrate (Also called Cream of Tartar)
C4H5KO6 188.18
Butanedioic acid 2,3-dihydroxy-, [R-(R*,R*)]-, monopotassium salt.
Potassium hydrogen tartrate [CAS 868-14-4].

Potassium Bitartrate, dried at 105 for 3 hours, contains not less than 99.0 percent and not more than 101.0 percent of C4H5KO6.

Identification:
A: Ignite it: it leaves a residue that imparts a reddish purple color to a non-luminous flame.
B: A saturated solution of Potassium Bitartrate yields a yellowish orange precipitate with sodium cobalt nitrite TS.
C: A solution (1 in 10 of Potassium Bitartrate) responds to the tests for Tartrate.
Insoluble matter: Mix 500 mg of it with 3 mL of 6 N ammonium hydroxide: no un-dissolved residue remains.
Limit of ammonia:
Sodium hypochlorite solution: Use a commercially available solution that contains between 4.0% and 6.0% of sodium hypochlorite.
Oxidizing solution: [NOTE: Prepare on the day of use.] Prepare a mixture of alkaline sodium citrate TS and Sodium hypochlorite solution (4:1).
Diluted sodium nitroferricyanide solution— Prepare a mixture of water and sodium nitroferricyanide(10:1).
Standard solution: Transfer 300 mg of ammonium chloride, previously dried over silica gel for 4 hours, to a 1-L volumetric flask, and dilute with water to volume. This solution contains 100 =g of ammonia per mL. Dilute this solution quantitatively, and stepwise if necessary, with water to obtain a solution having a concentration of 0.25 =g of ammonia per mL.
Test solution: Transfer 250 mg of Potassium Bitartrate to a 100-mL volumetric flask, and dissolve in and dilute with water to volume. Heat gently to facilitate the dissolution.
Procedure: [NOTE: Carefully follow the order of addition stated below.] Separately transfer 6.0 mL each of the Standard solution and the Test solution to two color-comparison tubes. To each tube add 0.4 mL of phenol TS, 0.4 mL of Diluted sodium nitroferricyanide solution, and 1.0 mL of Oxidizing solution. Dilute with water to 10 mL, mix, and allow to stand for 1 hour: the color of the Test solution is not darker than the color of the Standard solution (0.01%).
Heavy metals: the limit is 0.002%.

Potassium Acid Tartrate FCC Food Grade
Potassium Bitartrate; Cream of Tartar
KOOCCH(OH)CH(OH)COOH
C4H5KO6 Formula weight 188.18
INS: 336 CAS 868-14-4

DESCRIPTION
Potassium Acid Tartrate occurs as colorless or slightly opaque crystals, or as a white, crystalline powder. It is a salt of L(+)- tartaric acid. One gram dissolves in 165 mL of water at 25C, in 16 mL of boiling water, and in 8820 mL of alcohol. A saturated solution is acid to litmus.
Function: Acidifier; buffer.

REQUIREMENTS
Identification:
A. When sufficiently heated, a sample chars and emits flammable vapors having an odor resembling that of burning sugar. At a higher temperature and with free access to air, the heat consumes the carbon of the black residue, and a white, fused mass of potassium carbonate remains that imparts a red-purple color to a non-luminous flame.
B. Mix a saturated solution of sample with sodium cobalt nitrite TS. A yellow-orange precipitate forms.
C. Neutralize a saturated solution of sample with 1 N sodium hydroxide in a test tube, add silver nitrate TS, then just sufficient 6 N ammonium hydroxide to dissolve the white precipitate, and boil the solution. A mirror forms on the inner surface of the test tube from the silver deposited there.
Assay: Not less than 99.0% and not more than 101.0% of C4H5KO6 after drying.
Ammonia: Passes test.
Insoluble Matter: Passes test.
Lead: Not more than 2 mg/kg.

Specifications of Potassium Sodium Tartrate Tetrahydrate BP Grade Show/Hide Details

Potassium Sodium Tartrate Tetrahydrate BP
Potassium Sodium Tartrate Tetrahydrate
C4H4KNaO6,4H2O -- 282.2 -- CAS 6381-59-5

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 [CAS 6100-16-9, 6381-59-5]
Anhydrous 210.16 [CAS 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%.

Specifications of Sodium Potassium Tartrate FCC Food Grade Show/Hide Details

Sodium Potassium Tartrate FCC Food Grade
Potassium Sodium Tartrate; Rochelle Salt; Seignette Salt
KOOCCH(OH)CH(OH)COONa·4H2O
C4H4KNaO6-4H2O Formula weight 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%.

Specifications of Potassium Sodium Tartrate Tetrahydrate ACS Analytical Reagent Grade Show/Hide Details

Potassium Sodium Tartrate Tetrahydrate ACS Analytical Reagent
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 tartrate, dipotassium tartrate or argol has formula K2C4H4O6. It is the potassium salt of tartaric acid. It is often confused with potassium bitartrate, also known as cream of tartar. As a food additive, it shares the E number E336 with potassium bitartrate. It has CAS Number 6100-19-2 (or 921-53-9 as per wikipedia), EC Number 213-067-8, Linear Formula KOOC(CHOH)2COOK-0.5H2O and Molecular weight 235.28. It is commercially not a very common item. We can give pure material of greater than 99.5% assay.

CAS Number 868-18-8 (also 6106-24-7), Sodium Tartrate, Potassium Bitartrate, Potassium Sodium Tartrate, Potassium Tartrate manufacturers suppliers exporters at:

manufacturer supplier exporter
Aadhunik Industries
Ankleshwar Gujarat & Mumbai, India
TEL: (OFFICE) 91-22-23774610, 23723564.