Potassium selenocyanate

硒氰酸钾

Also known as: Selenocyanic acid potassium, Selenocyanic acid, potassium salt, Potassium isoselenocyanate, Potassium selenoisocyanate, Potassium selenocyanide, potassium,selenocyanate

Potassium selenocyanate (CAS 3425-46-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula CKNSe and a molecular weight of 144.076 g/mol. It is also known as Selenocyanic acid potassium, Selenocyanic acid, potassium salt and Potassium isoselenocyanate. Key properties include a melting point of 147 °C, a boiling point of 134.2ºC at 760 mmHg, a density of 2.347 and a flash point of 35ºC. It is classified under GHS with signal word Danger and hazard statements H300, H331 — Toxic if inhaled and H373 — May cause damage to organs through prolonged exposure. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3425-46-5
Jingsj CID
J-1517270-3
Molecular Formula
CKNSe
Chinese Name
硒氰酸钾
Molecular Weight
144.076 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point147 °C
Boiling Point134.2ºC at 760 mmHg
Density2.347
Flash Point35ºC
Exact Mass144.883301
PSA23.79000

GHS Safety & Compliance

Acute Toxicity / Health Hazard / Environmental HazardSignal word: Danger
  • H300
  • H331 — Toxic if inhaled
  • H373 — May cause damage to organs through prolonged exposure
  • H410 — Very toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2929909090
Summary2929909090 other compounds with other nitrogen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Potassium selenocyanate?

The CAS number of Potassium selenocyanate is 3425-46-5.

What are the molecular formula and molecular weight of Potassium selenocyanate?

Potassium selenocyanate has molecular formula CKNSe and molecular weight 144.076 g/mol.

Is Potassium selenocyanate hazardous?

Potassium selenocyanate has GHS signal word Danger and hazard statements H300; H331 — Toxic if inhaled; H373 — May cause damage to organs through prolonged exposure.

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

Last updated:

How to cite: Jingsj. "Potassium selenocyanate (CAS 3425-46-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1517270-3 (accessed 2026-10-28).

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