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Phosphonitrilic chloride trimer

Also known as: Hexachlorocyclotriphosphazene, Hexachlorotriphosphazene, Phosphonitrilic chloride trimer, 1,3,5,2,4,6-Triazatriphosphorine, 2,2,4,4,6,6-hexachloro-2,2,4,4,6,6-hexahydro-, PPZ, Hexachlorophosphazene

Phosphonitrilic chloride trimer (CAS 940-71-6) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Cl6N3P3 and a molecular weight of 347.659 g/mol. Key properties include a melting point of 112-115 °C(lit.), a boiling point of 127 °C (13 mmHg) and a density of 1.98. 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 Aug 21, 2026.

CAS No.
940-71-6
Jingsj CID
J-1116884-6
Molecular Formula
Cl6N3P3
Molecular Weight
347.659 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Physicochemical Properties

Melting Point112-115 °C(lit.)
Boiling Point127 °C (13 mmHg)
Density1.98
Exact Mass344.743622
PSA55.83000
LogP5.57820
Refractive Index1.790

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2926909090
SummaryHS:2926909090 other nitrile-function compounds 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 Phosphonitrilic chloride trimer?

The CAS number of Phosphonitrilic chloride trimer is 940-71-6.

What are the molecular formula and molecular weight of Phosphonitrilic chloride trimer?

Phosphonitrilic chloride trimer has molecular formula Cl6N3P3 and molecular weight 347.659 g/mol.

Is Phosphonitrilic chloride trimer hazardous?

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

What are the upstream and downstream products of Phosphonitrilic chloride trimer?

For Phosphonitrilic chloride trimer, Upstream Products: Ammonium chloride, Tris(trimethylsilyl)amine, Ammonia; Downstream Products: Triiron dodecacarbonyl.

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

Last updated:

How to cite: Jingsj. "Phosphonitrilic chloride trimer (CAS 940-71-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1116884-6 (accessed 2026-11-09).

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