Molekula
Sodium tartrate dihydrate (Food grade)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium tartrate dihydrate is a food-grade organic salt derived from tartaric acid, widely used as a buffering agent, pH regulator, and sequestrant in food and beverage production, pharmaceuticals, and chemical synthesis. It is also widely used as a primary standard for calibrating Karl Fischer water titrations, owing to its stable, stoichiometric water content of about 15.66%. This white crystalline powder has a CAS number of 6106-24-7, with the molecular formula C4H4Na2O6·2H2O and a molecular weight of 230.08. It is non-hazardous (no signal word) and can be stored safely at ambient conditions. Molekula supplies sodium tartrate dihydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Loss on Drying | ≤17.0% |
| Assay | ≥99.0% |
| Sulphated Ash | ≤0.1% |
| Chlorides | ≤100ppm |
| Specific optical rotation | +12.0° - +12.8° |
| Calcium (Ca) | ≤200ppm |
| Sulphates (SO4)(2-) | ≤150ppm |
| Oxalate (Oxalic acid) | ≤100ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90036813 |
| CAS Number | 6106-24-7 |
| Molecular Formula | C4H4Na2O6 · 2H2O |
| Molecular Weight | 230.08 |
| SMILES | C(C(C(=O)[O-])O)(C(=O)[O-])O.O.O.[Na+].[Na+] |
| REACH Code | Y110 |
| Tariff Code | 29181300 |
Safety & GHS
Detailed safety information available in the SDS — see Documents below.
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is sodium tartrate dihydrate (food grade) commonly used for?
It is primarily used as a food additive (E335) for acidity regulation, buffering, and as a sequestrant in beverages, desserts, and pharmaceuticals.
What is the chemical formula and molecular weight of sodium tartrate dihydrate?
The formula is C₄H₄Na₂O₆·2H₂O, and the molecular weight is 230.08 g/mol.
How should sodium tartrate dihydrate (food grade) be stored?
Store in a cool, dry place at ambient temperature, away from moisture and strong oxidizing agents.
What grade of sodium tartrate dihydrate does Molekula supply?
Molekula supplies food-grade sodium tartrate dihydrate.
Can Molekula supply sodium tartrate dihydrate in bulk quantities?
Yes, we offer bulk quantities of sodium tartrate dihydrate to accommodate large-scale industrial and commercial needs.
What documentation comes with an order of sodium tartrate dihydrate?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.