Perchloric acid

2.1 Classification of the substance or mixture

WHMIS 2015 Classification Classified as hazardous under the Hazardous Products Regulations (SOR/2015-17) Oxidizing liquids Category 1 Corrosive to metals Category 1 Acute oral toxicity Category 4 Skin Corrosion/Irritation Category 1 A Serious Eye Damage/Eye Irritation Category 1 Specific target organ toxicity (single exposure) Category 3 Target Organs - Respiratory system. Specific target organ toxicity - (repeated exposure) Category 2 Target Organs - Thyroid.

Physical hazards

Not Otherwise Classified Category 1 Risk of explosion if heated under confinement

Signal word

Danger

Hazard statements

May cause fire or explosion; strong oxidizer May be corrosive to metals Harmful if swallowed Causes severe skin burns and eye damage May cause respiratory irritation May cause damage to organs through prolonged or repeated exposure Risk of explosion if heated under confinement

Prevention

Wear protective gloves/protective clothing/eye protection/face protection Wear fire/flame resistant/retardant clothing Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking Keep cool. Protect from sunlight Keep/Store away from clothing/combustible materials Take any precaution to avoid mixing with combustibles Keep only in original container Do not breathe dust/fumes/gas/mist/vapours/spray Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product Use only outdoors or in a well-ventilated area

Response

Explosion risk in case of fire IF INHALED: Remove person to fresh air and keep comfortable for breathing IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing IF ON CLOTHING: Rinse immediately contaminated clothing and skin with plenty of water before removing clothes Immediately call a POISON CENTER/doctor Rinse mouth Do NOT induce vomiting Rinse skin with water/shower Wash contaminated clothing before reuse In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish In case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion Absorb spillage to prevent material damage

Storage

Store locked up Store in a well-ventilated place. Keep container tightly closed Store in corrosive resistant polypropylene container with a resistant inliner Store in a dry place

Disposal

Dispose of contents/container to an approved waste disposal plant