Food & beverage
Leavening acid in baking powder; stabilizer for whipped egg whites.
Ingredients / Acidulants & pH control / Potassium Bitartrate
Acidulants & pH control
Potassium Bitartrate (E 336(i))
Potassium bitartrate for U.S. manufacturers, from vetted producers. FCC / USP grade on request. Download the sample spec sheet, then send us your grade and quantity.
TRACED · CERTIFIED · RELIABLE · TRANSPARENT · TESTED
Key facts
| CAS No. | 868-14-4 |
|---|---|
| E-number (EU) | E 336(i) |
| Synonyms | Monobasic potassium tartrate |
| Chemical formula | C4H5O6K |
| Molecular weight | 188,16 |
| Description | White crystalline or granulated powder |
| Grades | EU Reg. 231/2012 (E 336(i)) sample spec · FCC / USP available on request for U.S. food/pharma use |
| Origin | Confirmed in every offer; stated per lot on the COA |
| Storage, shelf life, packaging | Per the producer's specification, on request |
What potassium bitartrate is
Chemical name: Anhydrous monopotassium salt of L-(+)-tartaric acid. Formula C4H5O6K, molecular weight 188,16. White crystalline or granulated powder. (Source: EU Regulation 231/2012, E 336(i).)
Applications by industry
Sample specification
Values from EU Regulation 231/2012 (E 336(i)), consolidated text of 18.08.2026. Actual values depend on the producer; the producer's specification and the COA for your lot are available on request.
| Assay | Content not less than 98 % on the anhydrous basis |
|---|---|
| Loss on drying | Not more than 1,0 % (105 °C, 4 hours) |
| Oxalates | Not more than 100 mg/kg (expressed as oxalic acid, after drying) |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 2 mg/kg |
| Mercury | Not more than 1 mg/kg |
Download the full spec sheet (PDF)
Documents and sourcing
Droplet promise. Origin confirmed in every offer. Sample lot record on request, from the producer. SDS, allergen and other statements on request. We work with vetted producers and give you access to U.S.- and EU-stocked material through our partner network.
Data sheet, SDS and COA on request. Every delivery ships with a COA linked to the delivered lot.
Questions buyers ask
What is potassium bitartrate used for?
Typical uses by industry. Food & beverage: Leavening acid in baking powder; stabilizer for whipped egg whites. Suitability for your product and market is confirmed with the producer's specification.
Which grades can McBoeck supply?
Food grade to EU Regulation 231/2012 (E 336(i)). FCC / USP grade is available on request for U.S. food and pharma use. Particle size and other grade details follow the producer's specification, on request.
Which documents come with potassium bitartrate?
Every delivery ships with a COA linked to the delivered lot. Origin confirmed in every offer. Sample lot record on request, from the producer. SDS, allergen and other statements on request.
What does the sample spec sheet show?
Limits for assay, loss on drying, oxalates, arsenic, lead and mercury, taken from EU Regulation 231/2012. Actual values depend on the producer; the producer's specification and the lot COA are available on request.
How do I get a quote?
Send us the grade, quantity and delivery location through the quote form or at [email protected]. We work with vetted producers and give you access to U.S.- and EU-stocked material through our partner network.
Related acidulants & pH control
Acetic AcidCalcium CitrateCalcium GluconateCitric Acid, AnhydrousAll acidulants & pH control
Need potassium bitartrate?
Send us the grade, quantity and delivery location. Email [email protected] or call +1 (713) 766-6811.