Potassium Bitartrate CAS 868-14-4 Purity 99.0%~101.0%

Short Description:

Name: Potassium Bitartrate 

CAS: 868-14-4

White Crystals to Granular, Crystalline Powder

Purity: 99.0%~101.0% (C4H5KO6)  

Contact: Dr. Alvin Huang   

Mobile/Wechat/WhatsApp: +86-15026746401    

Enquiry: alvin@ruifuchem.com


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868-14-4 - Description:

Ruifu Chemical is the leading manufacturer of Potassium Bitartrate (CAS: 868-14-4) with high quality. Ruifu Chemical can provide worldwide delivery, competitive price, excellent service, small and bulk quantities available. Please contact: alvin@ruifuchem.com 

868-14-4 - Chemical Properties:

Chemical Name Potassium Bitartrate
Synonyms KHT; L-(+)-Tartaric Acid Monopotassium Salt; L(+)-Potassium Hydrogen Tartrate; Potassium Hydrogen L-Tartrate; Potassium Hydrogen Tartrate; Tartaric Acid Monopotassium Salt
CAS Number 868-14-4
Stock Status In Stock, Production Scale Up to Tons
Molecular Formula C₄H₆KO₆+
Molecular Weight 189.18
Density 1.954g/mLat 25℃(lit.)
Melting Point 267℃(dec.)
Sensitive Easily Absorbing Moisture
Stability Stable. Incompatible with Strong Oxidizing Agents.
COA & MSDS Available
Place of Origin  Shanghai, China
Brand Ruifu Chemical

868-14-4 - Specifications:

Item Specifications
Appearance White Crystals to Granular, Crystalline Powder
Purity 99.0%~101.0% (C4H5KO6) (Titration by NaOH)
Specific Rotation [a]20/D +32.5° ~ +35.5° (Ammonia=40%V/V) 
Clarity Test Qualified
Loss on Drying ≤0.50%
Iron (Fe)  ≤0.001%
Ammonia (NH4) ≤0.005%
Heavy Metals (as Pb) ≤0.001%
Sodium (Na)  ≤0.02%
Phospate (PO4) ≤0.002%
Arsenic (As) ≤3 mg/kg
Lead (Pb) ≤2 mg/kg
Sulfate (SO42-)   ≤0.005%
Insoluble Matter in HCl ≤0.005%
Ammonium Salt Test Qualified
Infrared Spectrum Conforms to Structure

Package & Storage:

Package: Bottle, Aluminum foil bag, Cardboard drum, 25kg/Drum, or according to customer's requirement.

Storage Condition: Store in sealed containers at cool and dry place; Protect from light, moisture 

868-14-4 - USP35 Standard:

Potassium Bitartrate
C4H5KO6 188.18
Butanedioic acid 2,3-dihydroxy-, [R-(R*,R*)]-, monopotassium salt;
Potassium hydrogen tartrate [868-14-4].
DEFINITION
Potassium Bitartrate, dried at 105 for 3 h, contains NLT 99.0% and NMT 101.0% of C4H5KO6.
IDENTIFICATION
• A. Ignite it: it leaves a residue that imparts a reddish purple color to a nonluminous flame.
• B. A saturated solution of it yields a yellowish orange precipitate with sodium cobaltinitrite TS.
• C. Identification Tests-General, Tartrate 191
Sample solution: 1 in 10 solution
Acceptance criteria: Meets the requirements
ASSAY
• Procedure
Sample: Dry 6 g of Potassium Bitartrate at 105 for 3 h. Allow to cool, and weigh.
Analysis: Dissolve the Sample in 100 mL of boiling water, add a few drops of phenolphthalein TS, and titrate with 1 N sodium hydroxide VS to a pink endpoint. Perform a blank determination (see Titrimetry 541). Each mL of 1 N sodium hydroxide is equivalent to 188.2 mg of C4H5KO6.
Acceptance criteria: 99.0%-101.0% on the previously dried basis
IMPURITIES
• Insoluble Matter
Sample: 500 mg
Analysis: Mix the Sample with 3 mL of 6 N ammonium hydroxide.
Acceptance criteria: No undissolved residue remains.
• Limit of Ammonia
Sodium hypochlorite solution: Use a commercially available solution that contains 4.0%-6.0% of sodium hypochlorite.
Oxidizing solution: [Note-Prepare on the day of use.] Alkaline sodium citrate TS and Sodium hypochlorite solution (4:1)
Diluted sodium nitroferricyanide solution: Sodium nitroferricyanide TS and water (1:10)
Standard stock solution: Dry 300 mg of ammonium chloride over silica gel for 4 h, and use it to prepare a 0.3 mg/mL solution in water. This solution contains 100 µg/mL of ammonia.
Standard solution: 0.25 µg/mL of ammonia in water, from Standard stock solution
Sample solution: 2.5 mg/mL of Potassium Bitartrate in water. Heat gently to facilitate the dissolution.
Analysis
[Note-Carefully follow the order of addition stated below. ]
Separately transfer 6.0 mL each of the Standard solution and the Sample 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 h.
Acceptance criteria: The color of the Sample solution is not darker than the color of the Standard solution (NMT 0.01%).
• Heavy Metals, Method II 231: NMT 20 ppm
ADDITIONAL REQUIREMENTS
• Packaging and Storage: Preserve in tight containers.

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868-14-4 - Risk and Safety:

Safety Description 24/25 - Avoid contact with skin and eyes.
WGK Germany 1
RTECS WW8223000
TSCA Yes
HS Code 2918130000

868-14-4 - Application:

Potassium Bitartrate is acid, and is slightly soluble in water.It is used in baking powder, for medicine, and as an acid and buffer in foods. It can be used in baking or as a cleaning solution. When mixed with an acidic liquid such as lemon juice or white vinegar, it can be made of a paste-like cleaning agent for metals or some other cleaning applications. Approved by the FDA as a direct food substance, potassium bitartrate is used as an additive, stabilizer, pH control agent, antimicrobial agent, processing aid, or thickener in various food products. In food In food, potassium bitartrate is used for: Stabilizing egg whites, increasing their heat tolerance and volume Stabilizing whipped cream, maintaining its texture and volume Preventing sugar syrups from crystallising Reducing discolouration of boiled vegetables.

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