Sodium tripolyphosphate, anhydrous

Name: Sodium tripolyphosphate, anhydrous
Brand: Vaqora Chemicals
SKU: VQ-014257

About Sodium tripolyphosphate, anhydrous

Listed under CAS 7758-29-4, Sodium tripolyphosphate is an alkali metal compound available from Vaqora Chemicals with a typical assay of 90%. The compound has the formula Na5O10P3, corresponding to a molecular weight of 367.86 g/mol. Systematically, it is named pentasodium. [oxido(phosphonatooxy)phosphoryl] phosphate. Alternative names: STPP and Sodium phosphate.

The material typically appears as a white powder. Literature values give a melting point of 622 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is commonly used for analytical determinations and surfactants and detergency. Our customers for this product work in academic and industrial research.

Vaqora Chemicals supplies Sodium tripolyphosphate in 1 kg, 5 kg and 25 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Analytical determinations
Surfactants & detergency

Industries

Specifications & identifiers

Chemical identifiers
Product name	Sodium tripolyphosphate, anhydrous
Catalogue No.	VQ-014257
CAS Number	7758-29-4
IUPAC name	pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate
Molecular formula	Na₅O₁₀P₃
Molecular weight	367.86 g/mol
Exact mass	367.8193
Purity / assay	90%
HSN code	28353100
InChIKey	HWGNBUXHKFFFIH-UHFFFAOYSA-I
SMILES	[O-]P(=O)([O-])OP(=O)([O-])OP(=O)([O-])[O-].[Na+].[Na+].[Na+].[Na+].[Na+]
PubChem CID	24455

Physical properties
Physical form	Powder
Appearance	White powder
Melting point	622 °C
H-bond donors / acceptors	0 / 10
TPSA	185 Å²
Synonyms	STPP, Sodium phosphate, Sodium triphosphate, Pentasodium triphosphate, Rhodiaphos LV, Thermphos N, Triphosphoric acid, pentasodium salt, Thermphos SPR, Thermphos L 50, Sodium phosphate (Na5P3O10), Sodium triphosphate (Na5P3O10), Na5P3O10

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 7758-29-4

penta-Sodium triphosphate

CAS: 7758-29-4
Formula: Na₅O₁₀P₃
MW: 367.86 g/mol

VQ-013981

Frequently asked questions

What is the CAS number of Sodium tripolyphosphate, anhydrous?

The CAS Registry Number of Sodium tripolyphosphate, anhydrous is 7758-29-4. It is also known as STPP, Sodium phosphate, Sodium triphosphate.

What is the molecular formula and molecular weight of Sodium tripolyphosphate, anhydrous?

Sodium tripolyphosphate, anhydrous has the molecular formula Na5O10P3 and a molecular weight of 367.86 g/mol.

Which grade and pack sizes of Sodium tripolyphosphate, anhydrous can I order?

We supply Sodium tripolyphosphate, anhydrous in (90%) grade, in 1 kg, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Sodium tripolyphosphate, anhydrous?

Yes. Every lot of Sodium tripolyphosphate, anhydrous is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Sodium tripolyphosphate, anhydrous be shipped internationally?

Yes. Sodium tripolyphosphate, anhydrous is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.