Sodium orthophosphate, tribasic, 98%

Name: Sodium orthophosphate, tribasic, 98%
Brand: Vaqora Chemicals
SKU: VQ-014195

About Sodium orthophosphate, tribasic, 98%

Vaqora Chemicals supplies Sodium orthophosphate, tribasic (Extra Pure grade), an alkali metal compound registered under CAS number 10101-89-0 with a typical assay of 98%. Its molecular formula is H24Na3O16P and its molecular weight is 380.12 g/mol. The IUPAC name is trisodium. Phosphate. Dodecahydrate. Common synonyms include Sodium phosphate tribasic dodecahydrate and Trisodium phosphate dodecahydrate.

The material typically appears as a crystalline powder. Key physical data: a melting point of ~75 °C (dec.) and a density of 1.62 g/mL at 25 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 4 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for buffer preparation and materials research. Typical end-use sectors are academic and industrial research.

We offer Sodium orthophosphate, tribasic in 500 g, 5 kg and 4 x 25 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Buffer preparation
Materials research

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Sodium orthophosphate, tribasic, 98%
Catalogue No.	VQ-014195
CAS Number	10101-89-0
IUPAC name	trisodium;phosphate;dodecahydrate
Molecular formula	H₂₄Na₃O₁₆P
Molecular weight	380.12 g/mol
Exact mass	380.0495
Grade	Extra Pure
Purity / assay	98%
HSN code	28352990
InChIKey	ASTWEMOBIXQPPV-UHFFFAOYSA-K
SMILES	O.O.O.O.O.O.O.O.O.O.O.O.[O-]P(=O)([O-])[O-].[Na+].[Na+].[Na+]
PubChem CID	61473

Physical properties
Physical form	Powder
Appearance	Crystalline powder
Melting point	~75 °C (dec.)
Density	1.62 g/mL at 25 °C
H-bond donors / acceptors	12 / 16
TPSA	98.3 Å²
UN number	UN 3262
Synonyms	Sodium phosphate tribasic dodecahydrate, Trisodium phosphate dodecahydrate, Sodium phosphate dodecahydrate, Phosphoric acid, trisodium salt, dodecahydrate, sodium phosphate, tribasic, dodecahydrate, Phosphoric acid, trisodium salt, dodeahydrate, Phosphoric acid, sodium salt, hydrate (1:3:12), Trisodium phosphate (tert) dodecahydrate, Sodiumphosphatedodecahydrate, Na3PO4.12H2O, trisodiumphosphate dodecahydrate, Sodium orthophosphate dodecahydrate

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H314Causes severe skin burns and eye damage
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P260, P261, P264, P264 + P265, P271, P280, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P316, P319, P321, P332 + P317, P337 + P317, P362 + P364, P363, 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 10101-89-0

AR / Food Grade

Sodium orthophosphate, tribasic, AR, food grade (FCC)

CAS: 10101-89-0
Formula: H₂₄Na₃O₁₆P
MW: 380.12 g/mol

VQ-047265

AR

Sodium orthophosphate, tribasic, GR 98%+

CAS: 10101-89-0
Formula: H₂₄Na₃O₁₆P
MW: 380.12 g/mol

VQ-014196

Extra Pure

Sodium phosphate, tribasic, 98%

CAS: 10101-89-0
Formula: H₂₄Na₃O₁₆P
MW: 380.12 g/mol

VQ-014216

AR

Sodium phosphate, tribasic, GR 99%

CAS: 10101-89-0
Formula: H₂₄Na₃O₁₆P
MW: 380.12 g/mol

VQ-014217

Frequently asked questions

What is the CAS number of Sodium orthophosphate, tribasic, 98%?

The CAS Registry Number of Sodium orthophosphate, tribasic, 98% is 10101-89-0. It is also known as Sodium phosphate tribasic dodecahydrate, Trisodium phosphate dodecahydrate, Sodium phosphate dodecahydrate.

What is the molecular formula and molecular weight of Sodium orthophosphate, tribasic, 98%?

Sodium orthophosphate, tribasic, 98% has the molecular formula H24Na3O16P and a molecular weight of 380.12 g/mol.

Which grade and pack sizes of Sodium orthophosphate, tribasic, 98% can I order?

We supply Sodium orthophosphate, tribasic, 98% in Extra Pure (98%) grade, in 500 g, 5 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Sodium orthophosphate, tribasic, 98%?

Yes. Every lot of Sodium orthophosphate, tribasic, 98% 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 orthophosphate, tribasic, 98% be shipped internationally?

Yes. Sodium orthophosphate, tribasic, 98% is classified as hazardous (UN 3262), 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.