Molekula
Potassium antimonyl tartrate sesquihydrate
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
Potassium antimonyl tartrate sesquihydrate is a crystalline inorganic compound used in analytical chemistry and as a reagent in specialized laboratory applications. It is a hydrated salt containing potassium, antimony, and tartrate. CAS: 28300-74-5, Molecular Formula: 2C8H4K2O12Sb2 · 3H2O, Molecular Weight: 1281.70 g/mol, Storage: Ambient, Signal Word: Danger. Molekula supplies Potassium antimonyl tartrate sesquihydrate 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.
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Specifications
| Property | Value |
|---|---|
| Appearance | White / off white powder |
| Identification | Conforms to reference |
| pH | 3.5 - 4.5 |
| Loss on Drying | ≤2.7% |
| Content | 99.00 - 103.00% |
| Water-Soluble Test | Passes test |
| Lead (Pb) | ≤0.002% |
| Arsenic (As) | ≤0.015% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90034141 |
| CAS Number | 28300-74-5 |
| Molecular Formula | 2C8H4K2O12Sb2 · 3H2O |
| Molecular Weight | 1281.70 |
| SMILES | [C@@H]([C@H](C(=O)[O-])[O-])(C(=O)[O-])[O-].[C@@H]([C@H](C(=O)[O-])[O-])(C(=O)[O-])[O-].O.O.O.[K+].[K+].[Sb+3].[Sb+3] |
| UN Number | UN1551 |
| REACH Code | Y110 |
| HTS Code | 29181350 |
| Tariff Code | 2918130000 |
Safety & GHS
-
Toxic
GHS06
-
Hazardous to the Environment
GHS09
Hazard statements
- H301 Toxic if swallowed
- H332 Harmful if inhaled
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
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 antimonyl tartrate sesquihydrate used for?
It is primarily used as a reagent in analytical chemistry and in the synthesis of antimony-based compounds.
What is the chemical formula and molecular weight?
The formula is 2C8H4K2O12Sb2 · 3H2O with a molecular weight of 1281.70 g/mol.
How should potassium antimonyl tartrate sesquihydrate be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available for this product?
Available in analytical grade for laboratory use.
Can Molekula supply this in bulk?
Yes, Molekula can supply potassium antimonyl tartrate sesquihydrate in bulk quantities—please contact sales for details.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.