Sodium hydrosulfide

硫氢化钠

Also known as: Sodium bisulfide, Sodium hydrogen sulfide, Sodium hydrosulphide, Sodium sulfhydrate, Sodium mercaptan

Sodium hydrosulfide (CAS 16721-80-5) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula HNaS and a molecular weight of 56.063 g/mol. It is also known as Sodium bisulfide, Sodium hydrogen sulfide and Sodium hydrosulphide. Key properties include a melting point of 55°C, a density of 1,79 g/cm3 and a flash point of 90°C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16721-80-5
Jingsj CID
J-1498366-7
Molecular Formula
HNaS
Chinese Name
硫氢化钠
Molecular Weight
56.063 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Physicochemical Properties

Melting Point55°C
Density1,79 g/cm3
Flash Point90°C

Frequently Asked Questions

What is the CAS number of Sodium hydrosulfide?

The CAS number of Sodium hydrosulfide is 16721-80-5.

What are the molecular formula and molecular weight of Sodium hydrosulfide?

Sodium hydrosulfide has molecular formula HNaS and molecular weight 56.063 g/mol.

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

Last updated:

How to cite: Jingsj. "Sodium hydrosulfide (CAS 16721-80-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1498366-7 (accessed 2026-10-23).

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