Molekula
Sodium tartrate dihydrate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium tartrate dihydrate is a white, crystalline organic salt derived from tartaric acid, widely used as a food additive (E335), pH regulator, and buffering agent in beverages, pharmaceuticals, and baking. It also serves as a primary water standard for Karl Fischer titration and a reagent in chemical synthesis. CAS 6106-24-7, molecular formula C4H4Na2O6·2H2O, molecular weight 230.08 g/mol. Non-hazardous (no signal word), stable at ambient storage 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £29.50 per pack ex VAT · £35.40 inc. VAT
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1 kg — £93.30 per pack ex VAT · £111.96 inc. VAT
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 |
|---|---|
| Appearance | White powder |
| Identification | Conforms to reference |
| Assay | ≥ 97.0% |
| Iron (Fe) | ≤200 ppm |
| Water (KF) | ≤17.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 27692804 |
| CAS Number | 6106-24-7 |
| IUPAC Name | disodium;(2R,3R)-2,3-dihydroxybutanedioate;dihydrate |
| Molecular Formula | C4H4Na2O6 · 2H2O |
| Molecular Weight | 230.08 |
| Exact Mass | 230.0015 |
| SMILES | [C@@H]([C@H](C(=O)[O-])O)(C(=O)[O-])O.O.O.[Na+].[Na+] |
| InChIKey | FGJLAJMGHXGFDE-DGFHWNFOSA-L |
| InChI | InChI=1S/C4H6O6.2Na.2H2O/c5-1(3(7)8)2(6)4(9)10;;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;2*1H2/q;2*+1;;/p-2/t1-,2-;;;;/m1..../s1 |
| PubChem CID | 12598458 |
| 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.
Synonyms
- Butanedioic acid, 2,3dihydroxy (2R,3R), sodium salt, hydrate (1:2:2)
- Butanedioic acid, 2,3dihydroxy (R(R*,R*)), disodium salt, dihydrate
- Disodium tartarate dihydrate
- Disodium tartrate dihydrate
- hydranal
- Sodium L-(+)-Tartaric Acid Dihydrate
- sodium l-(+)-tartrate dihydrate
- Sodium tartrate dibasic dihydrate
- SODIUM TARTRATE DIHYDRATE (USP-RS)
- Tartaric acid, disodium salt, dihydrate
Frequently asked questions
What is sodium tartrate dihydrate commonly used for?
Sodium tartrate dihydrate is primarily used in food and pharmaceutical industries as a buffering agent, pH regulator, and sequestrant, as well as in baking powder formulations.
What is the chemical formula and molecular weight of sodium tartrate dihydrate?
The chemical formula is C₄H₄Na₂O₆·2H₂O, and the molecular weight is 230.08 g/mol.
How should sodium tartrate dihydrate be stored?
Store at ambient temperature in a cool, dry place, away from moisture and strong oxidizing agents.
What grades of sodium tartrate dihydrate does Molekula supply?
Molekula supplies food-grade (USP/FCC) and reagent-grade sodium tartrate dihydrate, depending on application requirements.
Can Molekula supply sodium tartrate dihydrate in bulk quantities?
Yes, we offer bulk packaging options for sodium tartrate dihydrate, with quantities tailored to customer 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.