Selenium(IV) oxide

2.1 Classification of the substance or mixture

This chemical is considered hazardous by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200) Acute oral toxicity Category 2 Acute dermal toxicity Category 1 Acute Inhalation Toxicity - Dusts and Mists Category 2 Skin Corrosion/Irritation Category 1 Serious Eye Damage/Eye Irritation Category 1 Germ Cell Mutagenicity Category 2 Specific target organ toxicity - (repeated exposure) Category 2 Target Organs - Liver.

Signal word

Danger

Hazard statements

Toxic if swallowed Causes severe skin burns and eye damage Suspected of causing genetic defects May cause damage to organs through prolonged or repeated exposure Fatal in contact with skin or if inhaled

Prevention

Obtain special instructions before use Do not handle until all safety precautions have been read and understood Wear protective gloves/protective clothing/eye protection/face protection In case of inadequate ventilation wear respiratory protection Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product Avoid breathing dust/fume/gas/mist/vapors/spray Do not get in eyes, on skin, or on clothing

Response

IF exposed or concerned: Get medical attention/advice Inhalation Immediately call a POISON CENTER or doctor/physician IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing Skin Immediately call a POISON CENTER or doctor/physician IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower Wash contaminated clothing before reuse Eyes Immediately call a POISON CENTER or doctor/physician IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing Ingestion IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician Rinse mouth

Storage

Store locked up Store in a well-ventilated place. Keep container tightly closed

Disposal

Dispose of contents/container to an approved waste disposal plant

2.3 Other hazards

Very toxic to aquatic life with long lasting effects

Other hazards

Hygroscopic.