Skip to content
Molekula

Molekula

Potassium sodium tartrate

SKU 89986226 CAS 6381-59-5 C4H4KNaO6 MW 210.16 In stock Bulk quantities on request

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

Potassium sodium tartrate is a crystalline salt used in food additives, pharmaceuticals, and chemical synthesis. It serves as a stabilizer and buffering agent. Available in powder form with a molecular weight of 210.16 g/mol, it has a CAS number of 6381-59-5 and is stable at ambient storage conditions. No signal word applies. Molekula supplies Potassium sodium tartrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Expect a response within hours Speak to a chemist: +44 (0) 3302 000333

Example image for illustration only. Other packaging and pack sizes are available.

Pricing & pack sizes

Pack sizes & pricing

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.

  • 100 g — £29.50 per pack ex VAT · £35.40 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.

Quantity
Unit
Needed by
Full name
Email
Company
Phone (optional)
Notes

Expect a response within hours

Prices exclude VAT/sales tax and shipping.

Specifications

Property Value
Appearance White crystalline powder
Water 24.0 - 26.0%
Heavy metals ≤ 10ppm
Identification Conforms to reference
pH 6.5 - 8.5 (5% Solution)
Assay ≥ 99.0%
Insoluble Matter ≤ 0.05%
Iron (Fe) ≤ 10ppm
Ammonia (NH3) Conforms to USP monograph

Storage & handling

Property Value
Storage Temperature Ambient
Acidity Neutral

Identification

Property Value
SKU 89986226
CAS Number 6381-59-5
Molecular Formula C4H4KNaO6
Molecular Weight 210.16
REACH Code Y110
TSCA Listed Yes
HTS Code 2918.13.3000
Tariff Code 29181300

Safety & GHS

Precautionary statements

  • P280 Wear protective gloves/protective clothing/eye protection/face protection

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

No alternate names recorded for this product.

Frequently asked questions

What is potassium sodium tartrate used for?

It is primarily used as a stabilizer in food and pharmaceuticals, and as a reagent in chemical synthesis.

What is the chemical formula and molecular weight of potassium sodium tartrate?

The formula is C4H4KNaO6 with a molecular weight of 210.16 g/mol.

How should potassium sodium tartrate be stored?

It should be stored at ambient temperature, protected from moisture and heat.

What grade of potassium sodium tartrate does Molekula supply?

Molekula supplies reagent grade potassium sodium tartrate.

Can Molekula supply potassium sodium tartrate in bulk?

Yes, Molekula can supply potassium sodium tartrate in bulk quantities upon request.

What documentation comes with a purchase of potassium sodium tartrate?

Each order includes a Certificate of Analysis and Safety Data Sheet (SDS).

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.

Talk to a chemist
Documents Pricing
Request a quote
Tell us the product and the quantity you need — including quantities larger than our listed packs. Expect a response within hours.
Full name
Company
Email
Phone (optional)
Product
Quantity needed

Ask for whatever you actually need — the pack sizes on our catalogue pages are a starting point, not a limit.

Message
View basket