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Common Toxic Gas - Hydrocyanic Acid
Posted Date:2022/11/4
Hydrogen cyanide, as a kind of asphyxiating gas, has the title of "lightning killer", which is widely used in organic chemistry, electroplating, mining and metallurgy, paint, dye, rubber and other industries.
Cyanide is mostly synthetic, but small amounts are found in natural substances such as bitter almonds, loquat seeds, peach seeds, cassava and ginkgo. Among them, electroplating, paint, dye, rubber and other industries more contact opportunities.
Hazards of hydrocyanic acid (CAS: 74-90-8)
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Harm of hydrocyanic acid:
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Hazard Assessment in China Hazardous Chemicals List - Hazardous Chemicals Classification Information Table:
H300: Fatal if swallowed.
H310: Fatal by skin contact.
H330: Fatal by inhalation.
H400: Extremely toxic to aquatic organisms.
H410: Extremely toxic to aquatic organisms with long lasting effects.
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Principles of first aid treatment:
(1) Immediately leave the scene to a place with fresh air, quickly implement treatment, and provide oxygen therapy as soon as possible.
(2) Remove contaminated clothes and clean the contaminated skin with water or 5% sodium thiosulfate.
(3) The digestive tract intake should be immediately induced vomiting, with 1:5000 potassium permanganate or 5% sodium thiosulfate solution gastric lavage.
(4) The eye polluter should immediately rinse with plenty of flowing water or normal saline.