Molekula
Trisodium phosphate hexahydrate
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
Trisodium phosphate hexahydrate is an inorganic salt composed of sodium ions and phosphate anions, commonly used as a cleaning agent, water softener, and pH adjuster in industrial and household applications. It is also employed in food processing as a preservative and emulsifier. This chemical has a CAS number of 15819-50-8, with the molecular formula Na3PO4·6H2O and a molecular weight of 272.03 g/mol. It is stored at ambient conditions but requires careful handling due to its hazardous nature, indicated by the signal word "Danger." Molekula supplies Trisodium phosphate hexahydrate 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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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 to Off-white crystalline powder |
| Solubility | ⩾ 50g/l aq. |
| Assay | ⩾ 50.0% (Back titration) |
| Appearance of Solution | Clear or hazy colourless solution |
| Identification (RAMAN) | Conforms to Reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | III |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 89982729 |
| CAS Number | 15819-50-8 |
| IUPAC Name | trisodium;phosphate;hexahydrate |
| Molecular Formula | Na3PO4 · 6H2O |
| Molecular Weight | 272.03 |
| Exact Mass | 271.9861 |
| SMILES | O.O.O.O.O.O.[O-]P(=O)([O-])[O-].[Na+].[Na+].[Na+] |
| InChIKey | BPFZWBABAJEKEO-UHFFFAOYSA-K |
| InChI | InChI=1S/3Na.H3O4P.6H2O/c;;;1-5(2,3)4;;;;;;/h;;;(H3,1,2,3,4);6*1H2/q3*+1;;;;;;;/p-3 |
| PubChem CID | 9795465 |
| UN Number | UN3262 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28352930 |
| Tariff Code | 2835293000 |
Safety & GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
Hazard statements
- H314 (sub cat. 1C) Causes severe skin burns and eye damage
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- 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
- BPFZWBABAJEKEO-UHFFFAOYSA-K
- H12Na3O10P
- Sodium phosphate--water (3/1/6)
Frequently asked questions
What is Trisodium phosphate hexahydrate commonly used for?
It is primarily used as a cleaning agent, water softener, and pH adjuster in industrial and household applications, including detergents, metal cleaning, and boiler water treatment.
What is the chemical formula and molecular weight of Trisodium phosphate hexahydrate?
The formula is **Na₃PO₄·6H₂O**, and the molecular weight is **272.03 g/mol**.
How should Trisodium phosphate hexahydrate be stored?
Store in a cool, dry place at ambient temperature, away from incompatible substances, and ensure proper ventilation.
What grades of Trisodium phosphate hexahydrate does Molekula supply?
Molekula supplies **technical/industrial grade** Trisodium phosphate hexahydrate, suitable for most industrial applications.
Can Molekula supply Trisodium phosphate hexahydrate in bulk quantities?
Yes, Molekula can provide bulk quantities of Trisodium phosphate hexahydrate, with flexible packaging options to meet customer needs.
What documentation comes with an order of Trisodium phosphate hexahydrate?
Each order includes a **Certificate of Analysis (CoA)**, Safety Data Sheet (SDS), and a Material Safety Information (MSI) document.
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.