Phosphorous acid, 98%+

Name: Phosphorous acid, 98%+
Brand: Vaqora Chemicals
SKU: VQ-016028

About Phosphorous acid, 98%+

Vaqora Chemicals supplies Phosphorous acid in Synthesis grade, an inorganic reagent registered under CAS number 13598-36-2 with a typical assay of ≥98%. With the molecular formula H3O3P, it has a molar mass of 82.0 g/mol. Its systematic (IUPAC) name is phosphonic acid. Alternative names: Phosphorus trihydroxide.

In its supplied form it is colourless to white crystals or chunks or flakes. Literature values give a density of 1.651 g/mL at 25 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Typical applications include corrosion inhibition, water treatment and fuels and lubricants. Our customers for this product work in academic and industrial research.

We offer Phosphorous acid in 500 g, 5 kg and 50 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Corrosion inhibition
Water treatment
Fuels & lubricants

Industries

Specifications & identifiers

Chemical identifiers
Product name	Phosphorous acid, 98%+
Catalogue No.	VQ-016028
CAS Number	13598-36-2
IUPAC name	phosphonic acid
Molecular formula	H₃O₃P
Molecular weight	82 g/mol
Exact mass	81.982
Grade	Synthesis
Purity / assay	≥98%
HSN code	28111990
InChIKey	ABLZXFCXXLZCGV-UHFFFAOYSA-N
SMILES	OP(=O)O
PubChem CID	407

Physical properties
Physical form	Flakes
Appearance	Colourless to white crystals or chunks or flakes
Density	1.651 g/mL at 25 °C
LogP (XLogP3)	-1.6
H-bond donors / acceptors	2 / 3
TPSA	57.5 Å²
UN number	UN 2834

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H314Causes severe skin burns and eye damage

Precautionary statements: P260, P264, P270, P280, P301 + P317, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P321, P330, P363, 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 13598-36-2

Industrial

Phosphorous Acid

CAS: 13598-36-2
Formula: H₃O₃P
MW: 82 g/mol

VQ-019449

Frequently asked questions

What is the CAS number of Phosphorous acid, 98%+?

The CAS Registry Number of Phosphorous acid, 98%+ is 13598-36-2. It is also known as Phosphorus trihydroxide.

What is the molecular formula and molecular weight of Phosphorous acid, 98%+?

Phosphorous acid, 98%+ has the molecular formula H3O3P and a molecular weight of 82 g/mol. Its IUPAC name is phosphonic acid.

Which grade and pack sizes of Phosphorous acid, 98%+ can I order?

We supply Phosphorous acid, 98%+ in Synthesis (≥98%) grade, in 500 g, 5 kg, 50 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Phosphorous acid, 98%+?

Yes. Every lot of Phosphorous acid, 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 Phosphorous acid, 98%+ be shipped internationally?

Yes. Phosphorous acid, 98%+ is classified as hazardous (UN 2834), 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.