Hazards of Chemicals and Gases
CORROSIVES (ACIDS AND ALKALIES)
Corrosives Summary (Cont.)
The hazards of alkalies:
Alkalies are more destructive than the acids.
Alkali dusts, mists, and sprays can cause irritation of nasal passages,
eyes, and respiratory tract.
When in contact with the tissue, strong alkalies will cause ulcers, severe
burns, and eventual scarring.
Ingestion causes perforations of the mucous membrane and deeper
tissues; death may result if penetration is in vital areas.
Precautions when using corrosives:
An adequate supply of washdown water must be available.
Proper ventilation in corrosive work area must be provided.
Proper drainage must be provided such that exposure is limited.
Face shields and safety glasses that protect the eyes from splashes and
extensive vapor should be worn.
Proper personnel safety equipment should be worn when appropriate
(chemical gloves, respirators, coveralls, etc.)
Precautions when storing corrosives:
The building, or area within the building selected, should be of fire-
The floors should be composed of chemical-resistant brick or treated
concrete, be washable, and be provided with adequate drainage.
A well-lit and ventilated area in which there are adequate outlets for
water should be provided.
A relatively cool and dry environment should be maintained, preventing
extremes of temperature and humidity.
Electrical fixtures should be protected against corrosive mists, and wiring
should be enclosed and covered with corrosive-resistant material.