Osmium tetroxide, 4 wt% solution in water

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 4 Acute dermal toxicity Category 2 Acute Inhalation Toxicity - Vapors Category 4 Skin Corrosion/irritation Category 2 Serious Eye Damage/Eye Irritation Category 1 Respiratory Sensitization Category 1

Signal word

Danger

Hazard statements

Harmful if swallowed Fatal in contact with skin Causes skin irritation Causes serious eye damage Harmful if inhaled May cause allergy or asthma symptoms or breathing difficulties if inhaled

Prevention

Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product Do not get in eyes, on skin, or on clothing Wear protective gloves/protective clothing/eye protection/face protection Avoid breathing dust/fume/gas/mist/vapors/spray Use only outdoors or in a well-ventilated area In case of inadequate ventilation wear respiratory protection Inhalation IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing If experiencing respiratory symptoms: Call a POISON CENTER or doctor/physician Skin Immediately call a POISON CENTER or doctor/physician IF ON SKIN: Gently wash with plenty of soap and water Remove/Take off immediately all contaminated clothing Wash contaminated clothing before reuse If skin irritation occurs: Get medical advice/attention Eyes IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing Immediately call a POISON CENTER or doctor/physician Ingestion IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell Rinse mouth

Storage

Store locked up

Disposal

Dispose of contents/container to an approved waste disposal plant

2.3 Other hazards

None identified