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Pyrophosphoryl chloride

Also known as: Diphosphoryl chloride, Diphosphoric tetrachloride, Pyrophosphoric tetrachloride, Diphosphoryl tetrachloride, Phosphorodichloridic anhydride, diphosphoryl tetrachloride

Pyrophosphoryl chloride (CAS 13498-14-1) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Cl4O3P2 and a molecular weight of 251.758 g/mol. Key properties include a melting point of <-50ºC, a boiling point of 90 °C12 mm Hg(lit.), a density of 2.0±0.1 g/cm3 and a flash point of 101°C/10mm. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
13498-14-1
Jingsj CID
J-11645-0
Molecular Formula
Cl4O3P2
Molecular Weight
251.758 g/mol
Category
Inorganic Chemicals
Last updated
11/3/2026

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Physicochemical Properties

Melting Point<-50ºC
Boiling Point90 °C12 mm Hg(lit.)
Density2.0±0.1 g/cm3
Flash Point101°C/10mm
Exact Mass249.807678
PSA62.99000
LogP1.13
Refractive Index1.486

GHS Safety & Compliance

CorrosionSignal word: Danger
  • H314 — Causes severe skin burns and eye damage

Frequently Asked Questions

What is the CAS number of Pyrophosphoryl chloride?

The CAS number of Pyrophosphoryl chloride is 13498-14-1.

What are the molecular formula and molecular weight of Pyrophosphoryl chloride?

Pyrophosphoryl chloride has molecular formula Cl4O3P2 and molecular weight 251.758 g/mol.

Is Pyrophosphoryl chloride hazardous?

Pyrophosphoryl chloride has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Pyrophosphoryl chloride?

For Pyrophosphoryl chloride, Upstream Products: Water, Phosphoryl chloride, Silver oxide; Downstream Products: Phosphoryl chloride, Phosphoryl bromide, ethyl dihydrogen phosphate.

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

Last updated:

How to cite: Jingsj. "Pyrophosphoryl chloride (CAS 13498-14-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11645-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.