Food & beverage
Antioxidant.
Ingredients / Antioxidants / Calcium Ascorbate
Antioxidants
Calcium Ascorbate (E 302)
Calcium ascorbate 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
| E-number (EU) | E 302 |
|---|---|
| Synonyms | Calcium ascorbate dihydrate |
| Chemical formula | C12H14O12Ca·2H2O |
| Molecular weight | 426,35 |
| Description | White to slightly pale greyish-yellow odourless crystalline powder |
| Grades | EU Reg. 231/2012 (E 302) 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 calcium ascorbate is
Chemical name: Calcium ascorbate dihydrate. Formula C12H14O12Ca·2H2O, molecular weight 426,35. White to slightly pale greyish-yellow odourless crystalline powder. (Source: EU Regulation 231/2012, E 302.)
Applications by industry
Pharma & nutraceuticals
Vitamin C source for supplements.
Sample specification
Values from EU Regulation 231/2012 (E 302), 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 a volatile matter-free basis |
|---|---|
| Fluoride | Not more than 10 mg/kg (expressed as fluorine) |
| Volatile matter | Not more than 0,3 % determined by drying at room temperature for 24 hours in a desiccator containing sulphuric acid or phosphorus pentoxide |
| 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 calcium ascorbate used for?
Typical uses by industry. Food & beverage: Antioxidant. Pharma & nutraceuticals: Vitamin C source for supplements. 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 302). 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 calcium ascorbate?
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, fluoride, volatile matter, 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 antioxidants
Ascorbic AcidBHT, Butylated HydroxytolueneErythorbic AcidSodium AscorbateAll antioxidants
Need calcium ascorbate?
Send us the grade, quantity and delivery location. Email [email protected] or call +1 (713) 766-6811.