Lead hydrogen arsenate

砷酸氢铅

Also known as: Lead arsenate, Acid lead arsenate, Lead(II) arsenate, Lead hydrogen arsenate (PbHAsO4), Arsenic acid lead salt, Lead(2+) monohydrogen arsenate, Schultenite, Gypsine, Arsinette, Natschultenite, Orthol 40 dust, Wellno 525

Lead hydrogen arsenate (CAS 7784-40-9) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula AsHO4Pb and a molecular weight of 347.12700 g/mol. It is also known as Lead arsenate, Acid lead arsenate and Lead(II) arsenate. Key property: a melting point of ca. 280ºC (decomposes). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
7784-40-9
Jingsj CID
J-1311373-9
Molecular Formula
AsHO4Pb
Chinese Name
砷酸氢铅
Molecular Weight
347.12700 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Physicochemical Properties

Melting Pointca. 280ºC (decomposes)
Exact Mass347.88600
PSA83.42000

Frequently Asked Questions

What is the CAS number of Lead hydrogen arsenate?

The CAS number of Lead hydrogen arsenate is 7784-40-9.

What are the molecular formula and molecular weight of Lead hydrogen arsenate?

Lead hydrogen arsenate has molecular formula AsHO4Pb and molecular weight 347.12700 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Lead hydrogen arsenate (CAS 7784-40-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1311373-9 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.