Zirconium
[CAS# 7440-67-7]

Identification

• Classification: Inorganic chemical industry >> Simple substance
• Name: Zirconium
• Molecular Formula: Zr
• Molecular Weight: 91.22
• CAS Registry Number: 7440-67-7
• EC Number: 231-176-9

Properties

• Density: 6.49 g/cm^3*
• Melting point: 2330-2380 ºC^**

^* "Hazardous Substances Data Bank" data were obtained from the National Library of Medicine (US)

^** Wedekind, E.; Justus Liebigs Annalen der Chemie 1910, V371, P366-88.

Safety Data

• Hazard Symbols: GHS02 Danger
• Hazard Statements: H250-H260
• Safety Description: S7/8;S43

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Self-heating substances or mixtures	Self-heat.	1	H251
Pyrophoric solids	Pyr. Sol.	1	H250
Substances or mixtures which in contact with water emit flammable gases	Water-react.	1	H260
Flammable solids	Flam. Sol.	1	H228
Skin corrosion	Skin Corr.	1B	H314

• Transport Information: UN 2008 4.2 / PGII