ICSC 0408 - CALCIUM HYDROXIDE

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CALCIUM HYDROXIDE ICSC: 0408

Peer-Review Status: 04.09.1997 Validated

Calcium dihydroxide

Calcium hydrate

Hydrated lime

Slaked lime

CAS #: 1305-62-0 RTECS #:

EW2800000

EINECS #: 215-137-3

 

Formula: Ca(OH)2

Molecular mass: 74.1

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 PREVENT DISPERSION

OF DUST!

Inhalation Sore throat. Cough. Burning sensation. Use local exhaust or

breathing protection.

Fresh air, rest. Refer for medical

attention.

Skin

Redness. Roughness. Pain. Dry skin.

Skin burns. Blisters.

Protective gloves.

Protective clothing.

Remove contaminated clothes.

Rinse skin with plenty of water or

shower. Refer for medical attention

.

Eyes

Redness. Pain. Severe deep burns. Wear safety goggles, face

shield or eye protection in

combination with breathing

protection.

First rinse with plenty of water for

several minutes (remove contact

lenses if easily possible), then refer

for medical attention.

Ingestion

Burning sensation. Abdominal pain.

Abdominal cramps. Vomiting.

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

Personal protection: P2 filter respirator for harmful particles.

Sweep spilled substance into covered containers. Then store

and dispose of according to local regulations.

EC Classification

UN Classification

GHS Classification

EMERGENCY RESPONSE SAFE STORAGE
ICSC 0408 - CALCIUM HYDROXIDE

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Separated from strong acids.

IMPORTANT DATA

Physical State; Appearance

COLOURLESS CRYSTALS OR WHITE POWDER.

Physical dangers

Chemical dangers

Decomposes on heating. This produces calcium oxide. The

solution in water is a medium strong base. Reacts violently

with acids. Attacks many metals in the presence of water. This

produces flammable/explosive gas (hydrogen - see ICSC

0001).

Occupational exposure limits

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 and skin. The

substance is irritating to the respiratory tract. Medical

observation is indicated.

Effects of long-term or repeated exposure

Repeated or prolonged contact with skin may cause dermatitis.

Repeated or prolonged inhalation of of dust particles may

cause effects on the lungs.

PHYSICAL PROPERTIES ENVIRONMENTAL DATA

Decomposes at at 580°C°C

Relative density (water = 1): 2.2 

Solubility in water: none

NOTES

ADDITIONAL INFORMATION

IPCS

International

Programme on

Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety

and the European Commission

© IPCS 2004-2012

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.