Tungstic acid, GR 99%+

Name: Tungstic acid, GR 99%+
Brand: Vaqora Chemicals
SKU: VQ-015029

About Tungstic acid, GR 99%+

Vaqora Chemicals supplies Tungstic acid (AR grade), a refractory / heavy metal compound registered under CAS number 7783-03-1 with a typical assay of ≥99%. Its molecular formula is H2O4W and its molecular weight is 249.85 g/mol. The IUPAC name is dihydroxy(dioxo)tungsten. It is also known as Tungstic(VI) acid or tungsten acid.

It is supplied as yellow powder or crystals. Reported physical data include a density of 5.5 g/mL at 25 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. Good laboratory practice and suitable PPE are recommended during handling.

It is commonly used for dyes and pigments manufacture and textile processing. Buyers come mainly from academic and industrial research.

Standard pack sizes are 25 g, 100 g, 500 g and 5 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Dyes & pigments manufacture
Textile processing

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Tungstic acid, GR 99%+
Catalogue No.	VQ-015029
CAS Number	7783-03-1
IUPAC name	dihydroxy(dioxo)tungsten
Molecular formula	H₂O₄W
Molecular weight	249.85 g/mol
Exact mass	249.9462
Grade	AR
Purity / assay	≥99%
HSN code	28419000
InChIKey	CMPGARWFYBADJI-UHFFFAOYSA-L
SMILES	O[W](=O)(=O)O
PubChem CID	1152

Physical properties
Physical form	Crystalline
Appearance	Yellow powder or crystals
Density	5.5 g/mL at 25 °C
H-bond donors / acceptors	2 / 4
TPSA	74.6 Å²
Synonyms	Tungstic(VI) acid, tungsten acid, Kyselina wolframova, Dihydrogen wolframate, Tungstic acid (H2WO4), Tungstic acid, 99%, Tungstate (WO42-), dihydrogen, (T-4)-, Tungsten hydroxide oxide, Tungstate (WO42-), hydrogen (1:2), (T-4)-, Tungstate (WO42-), dihydrogen, (beta-4)-, Tunstic acid, H2WO4

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 7783-03-1

Tungstic acid, 99%

CAS: 7783-03-1
Formula: H₂O₄W
MW: 249.85 g/mol

VQ-015028

Frequently asked questions

What is the CAS number of Tungstic acid, GR 99%+?

The CAS Registry Number of Tungstic acid, GR 99%+ is 7783-03-1. It is also known as Tungstic(VI) acid, tungsten acid, Kyselina wolframova.

What is the molecular formula and molecular weight of Tungstic acid, GR 99%+?

Tungstic acid, GR 99%+ has the molecular formula H2O4W and a molecular weight of 249.85 g/mol. Its IUPAC name is dihydroxy(dioxo)tungsten.

Which grade and pack sizes of Tungstic acid, GR 99%+ can I order?

We supply Tungstic acid, GR 99%+ in AR (≥99%) grade, in 25 g, 100 g, 500 g, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Tungstic acid, GR 99%+?

Yes. Every lot of Tungstic acid, GR 99%+ 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 Tungstic acid, GR 99%+ be shipped internationally?

Yes. We export Tungstic acid, GR 99%+ worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.