ICSC 0409 - CALCIUM OXIDE

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

CALCIUM OXIDE

ICSC: 0409
_{April 1997}

Lime
Burnt lime
Quicklime

CAS No: 1305-78-8
RTECS No: EW3100000
UN No: 1910

CaO
Molecular mass: 56.1

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible.		In case of fire in the surroundings: all extinguishing agents allowed except water.
EXPLOSION

EXPOSURE		PREVENT DISPERSION OF DUST! STRICT HYGIENE!
Inhalation	Burning sensation. Cough. Shortness of breath. Sore throat.	Local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	Dry skin. Redness. Skin burns. Burning sensation. Pain.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes	Redness. Pain. Blurred vision. Severe deep burns.	Safety goggles or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	Burning sensation. Abdominal pain. Abdominal cramps. Vomiting. Diarrhoea.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Give nothing to drink. Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Sweep spilled substance into dry containers. Personal protection: P2 filter respirator for harmful particles.	UN Hazard Class: 8 UN Pack Group: III	Do not transport with food and feedstuffs.

EMERGENCY RESPONSE	SAFE STORAGE
	Separated from strong acids, organics water food and feedstuffs. Dry.

IMPORTANT DATA

Physical State; Appearance
HYGROSCOPIC WHITE CRYSTALLINE POWDER.

Chemical dangers
The solution in water is a medium strong base. Reacts with water generating sufficient heat to ignite combustible materials. Reacts violently with acids, halogens, metals.

Occupational exposure limits
TLV: 2 mg/m³ as TWA; (ACGIH 2004).
MAK: IIb (not established but data is available); (DFG 2004).

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

Effects of short-term exposure
The substance is corrosive to the eyes, the skin and the respiratory tract. The effects may be delayed. Medical observation is indicated.

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. Lungs may be affected by repeated or prolonged exposure to dust particles. The substance may cause ulceration and perforation of the nasal septum.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: 2850°C Melting point: 2570°C Relative density (water = 1): 3.3-3.4 Solubility in water: reaction

NOTES

Reacts violently with fire extinguishing agents such as water.
Clumps of calcium oxide formed by reaction with moisture and proteins in the eye are difficult to remove by irrigation. Manual removal by a physician is necessary.
NEVER pour water into this substance; when dissolving or diluting always add it slowly to the water.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, Emergency Response.

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

LEGAL NOTICE

Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.

Updated by {ModOper}. Approved by {ModAppr}. Last update: {ModDate}