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Mubychem Group, is a mature manufacturing company since generations. Engaged in manufacture and supply of Pharmaceutical Intermediates and Excipients, Oil field & fracturing chemicals, Specialty tailor made grades of chemicals in India. With several manufacturing facilities in India and world wide contacts and toll manufacturers we are exporting to all the countries in the world.. |
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Cream of Tartar Potassium Bitartrate USP FCC Food grade Manufacturers
For MSDS Sheet Click MSDS of Cream of Tartar Potassium Bitartrate USP FCC Food grade Manufacturers
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 [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 TS (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
Potassium Bitartrate;
Cream of Tartar
KOOCCH(OH)CH(OH)COOH
C4H5KO6 Formula wt 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 25°, 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.
Cream of Tartar Potassium Bitartrate USP 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
