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Niobium(V) Chloride

Also known as: COLUMBIUM CHLORIDE, COLUMBIUM PENTACHLORIDE, EINECS 233-059-8, MFCD00011127, NIOBIUM PENTACHLORIDE, NIOBIUM(+5)CHLORIDE, NIOBIUM(V) CHLORIDE, NbCl5, Niobium chloride, Niobium chloride (NbCl5), Niobium(V) chloride, niobiumchloride(nbcl5), pentachloroniobium

Niobium(V) Chloride (CAS 10026-12-7) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Cl5Nb and a molecular weight of 270.173 g/mol. Key properties include a melting point of 204.7-209.5ºC, a boiling point of 254ºC, a density of 2.75 and a flash point of 248.2°C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and 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.
10026-12-7
Jingsj CID
J-1990201-3
Molecular Formula
Cl5Nb
Molecular Weight
270.173 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026
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Physicochemical Properties

Melting Point204.7-209.5ºC
Boiling Point254ºC
Density2.75
Flash Point248.2°C
Exact Mass267.752319
LogP3.44750

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H314 — Causes severe skin burns and eye damage
  • H332 — Harmful if inhaled

Frequently Asked Questions

What is the CAS number of Niobium(V) Chloride?

The CAS number of Niobium(V) Chloride is 10026-12-7.

What are the molecular formula and molecular weight of Niobium(V) Chloride?

Niobium(V) Chloride has molecular formula Cl5Nb and molecular weight 270.173 g/mol.

Is Niobium(V) Chloride hazardous?

Niobium(V) Chloride has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Niobium(V) Chloride?

For Niobium(V) Chloride, Upstream Products: Potassium heptafluoroniobate(V), Magnesium choride, Carbon tetrachloride; Downstream Products: 1,1-Dichloro-2,2,2-trifluoroethane, Mesityl oxide, niobium(v) fluoride.

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

Last updated:

How to cite: Jingsj. "Niobium(V) Chloride (CAS 10026-12-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990201-3 (accessed 2026-11-09).

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