HP Gas

High-Purity Boron Trichloride (Boron Trichloride)

Properties and Classification

Appearance: Colorless and odorless gas Liquefied gas
CAS Number: 10294-34-5 Toxic
UN Number: 1741

* Refer to MSDS for detailed information on the properties and safety of the product.


Purity vol% Min. 99.999
O2 volppm Max. 10
N2 volppm Max. 50
CO volppm Max. 5
CO2 volppm Max. 5
COCl2 volppm Max. 1
Heavy metals
Na volppm Max. 10
Fe volppm Max. 20
Cu volppm Max. 10
Ni volppm Max. 10
K volppm Max. 10
High-Purity Boron Trichloride (Boron Trichloride)


Item 10L cylinder 47L cylinder
Size Inside diameter 140mm 232mm
Height (to the neck portion) 850mm 1370mm
Height (with a protective cap) * 1000mm 1520mm
Valve nozzle height (center) * 885mm 1400mm
Loading weight 10kg 50kg
Material Manganese steel (Clean-S-treated)

* Estimated values for when a standard valve is mounted on a standard cylinder. The accuracy of these values is not guaranteed.


Nozzle size Ø22 mm X 14 right-hand threads
Material SUS316 (Clean-S-treated)

Physical & Chemical Properties

Item Unit Data
Chemical formula BCl3
Molecular weight 117.2
Boiling point (101.3kPa) °C 12.5
Specific gravity (air: 1) 1.43
Melting point (101.3kPa) °C -107
Liquid density (0°C, saturated liquid, 101.3kPa) kg/L
Gas density (0°C, saturated liquid) g/L 5.326
Critical temperature °C 178.9
Critical pressure MPa 3.87
kg/cm2 39.5
Flammability Not applicable
Toxicity Toxic
Latent heat of vaporization (0°C, 1013MPa) kJ/kg 205
Maximum permissible concentration (ACGIH, TWA) ppm 5
Explosive limit (in air, 35°C, 101.3 kPa)