ICSC 1577 - FERRIC OXIDE

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FERRIC OXIDE

ICSC: 1577
_{October 2004}

Anhydrous ferric oxide
Iron (III) oxide
Diiron trioxide
Iron trioxide
Ferric sesquioxide

CAS No: 1309-37-1
RTECS No: NO7400000
UN No: See Notes

Fe₂O₃
Molecular mass: 159.7

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible.		In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION

EXPOSURE
Inhalation	Cough.	Avoid inhalation of dust.	Fresh air, rest.
Skin
Eyes	Redness.	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.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Personal protection: P1 filter respirator for inert particles. Sweep spilled substance into covered containers.

EMERGENCY RESPONSE	SAFE STORAGE

IMPORTANT DATA
Physical State; Appearance REDDISH BROWN TO BLACK CRYSTALS OR POWDER Chemical dangers Reacts with carbon monoxide causing explosion hazard. Occupational exposure limits TLV: (as Fe) 5 mg/m³ as TWA; A4; (ACGIH 2004). MAK: (as the respirable fraction of the aerosol) 1.5 mg/m³; (DFG 2004).	Inhalation risk A nuisance-causing concentration of airborne particles can be reached quickly when dispersed, especially if powdered. Effects of short-term exposure May cause mechanical irritation. Effects of long-term or repeated exposure Lungs may be affected by repeated or prolonged exposure to dust particles, resulting in siderosis, a benign condition.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Melting point: 1565°C Density: 5.24 g/cm³ Solubility in water: none

NOTES

There is a UN number associated with ferric oxide but this relates to iron oxide, spent, or iron sponge, spent obtained from coal gas purification which is spontaneously combustible.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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