Formula: (NH4)2Cr2O7
Formula weight: 252.10
Purity: 99.5% min
CAS Number: 7789-09-5
UN Number: UN1439
Hazard Class: 5.1
Packing Group: II
Harmonized Tariff Code: 2841.50
Hazard Statements: H200-H272-H300-H311-H330-H334-H340-H350-H360-H372-H314-H318-H317
Unstable explosives. May intensify fire; oxidizer. Fatal if swallowed. Toxic in contact with skin. Fatal if inhaled. May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause genetic defects. May cause cancer. May damage fertility or the unborn child. Causes damage to organs through prolonged or repeated exposure. Causes severe skin burns and eye damage. Causes serious eye damage. May cause an allergic skin reaction.
Precautionary Statements: P221-P301+P310-P303+P361+P353-P304+P340-P305+P351+P338-P320-P330-P361-P373-P401a-P405-P501a
Take any precaution to avoid mixing with combustibles. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Specific treatment is urgent (see label). Rinse mouth. Remove/Take off immediately all contaminated clothing. DO NOT fight fire when fire reaches explosives. Store in accordance with local/regional/national/international regulations. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.
Risk Phrases: 45-46-60-61-2-8-21-25-26-34-42/43-48/23-50/53
May cause cancer. May cause heritable genetic damage. May impair fertility. May cause harm to the unborn child. Risk of explosion by shock, friction, fire or other sources of ignition. Contact with combustible material may cause fire. Harmful in contact with skin. Toxic if swallowed. Very toxic by inhalation. Causes burns. May cause sensitisation by inhalation and skin contact. Toxic: danger of serious damage to health by prolonged exposure through inhalation. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Phrases: 53-45-60-61
Avoid exposure - obtain special instructions before use. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). This material and/or its container must be disposed of as hazardous waste. Avoid release to the environment. Refer to special instructions/Safety data sheets