International Chemical Safety Cards

ZIRCONIUM

ICSC: 1405

(unstable powder)
Zr
Atomic mass: 91.2

ICSC #    1405
CAS #     7440-67-7
RTECS # ZH7070000
UN #        2008
EC #         040-001-00-3
October 27, 2004 Peer reviewed

TYPES OF HAZARD/ EXPOSURE	ACUTE HAZARDS/ SYMPTOMS	PREVENTION	FIRST AID/ FIRE FIGHTING
FIRE	Combustible. Many reactions may cause fire or explosion.	NO open flames.	Dry sand, dry powder.
EXPLOSION	Finely dispersed particles form explosive mixtures in air.	Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.

EXPOSURE	See EFFECTS OF LONG-TERM OR REPEATED EXPOSURE.	PREVENT DISPERSION OF DUST!
•INHALATION		Local exhaust or breathing protection.	Fresh air, rest.
•SKIN		Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
•EYES	Redness. Pain.	Safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION		Do not eat, drink, or smoke during work.	Rinse mouth.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Personal protection: P2 filter respirator for harmful particles.

See Chemical Dangers.

F symbol
R: 15-17
S: 2-7/8-43
UN Hazard Class: 4.2
UN Packing Group: I

SEE IMPORTANT INFORMATION ON BACK

ICSC: 1405

Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards

ZIRCONIUM

ICSC: 1405

I

M

P

O

R

T

A

N

T

D

A

T

A

PHYSICAL STATE; APPEARANCE:
HARD, LUSTROUS, GREYISH WHITE FLAKES OR GREY AMORPHOUS POWDER

PHYSICAL DANGERS:
Dust explosion possible if in powder or granular form, mixed with air.

CHEMICAL DANGERS:
Reacts violently with borax, carbon tetrachloride when heated. Reacts explosively when heated with alkali metal hydroxides.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 5 mg/mł as TWA; 10 mg/mł as STEL; A4; (ACGIH 2004).
MAK: (Inhalable fraction) 1 mg/mł; Sah;
Peak limitation category: I(1); Pregnancy risk group: IIc;
(DFG 2004).

ROUTES OF EXPOSURE:

INHALATION RISK:
A harmful concentration of airborne particles can be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
May cause mechanical irritation to the eyes.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Lungs may be affected by repeated or prolonged exposure to dust particles.

PHYSICAL
PROPERTIES

Boiling point: 3577°C
Melting point: 1857°C
Relative density (water = 1): 6.5

Solubility in water:
none

ENVIRONMENTAL
DATA

N O T E S

Other UN numbers: 1358 Zirconium powder; wetted; hazard class 4.1, packaging group II; 1932 Zirconium scrap, hazard class 4.2, packaging group III; 2009 Zirconium, dry, finished metal sheets, wire, strip, hazard class 4.2, packaging group III; 2858 Zirconium, metal sheets, 18-254 microns, hazard class 4.1, packaging group III. Pure Zirconium sponge is pyrophoric and violently explosive when impure.

Transport Emergency Card: TEC (R)-42GS4-I+II+III

ADDITIONAL INFORMATION

ICSC: 1405	ZIRCONIUM
(C) IPCS, CEC, 1994

IMPORTANT LEGAL NOTICE:

Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.