Ammonium dichromate ((NH4)2Cr2O7)

Substance: ammonium dichromate.

Also known as: Ammonium bichromate Ammonium pyrochromate Dichromic acid, diammonium salt

Chemspider article about ammonium dichromate

Wikipedia article about ammonium dichromate

Hazard information danger

Corrosive cat. 1
Toxic cat. 1 - 3
Systemic health hazards

Hazard statements

  • May intensify fire; oxidizer
  • Toxic if swallowed
  • Harmful in contact with skin
  • Causes severe skin burns and eye damage
  • May cause an allergic skin reaction
  • Causes serious eye damage
  • 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
  • Very toxic to aquatic life with long lasting effects

Precautionary statements

  • Obtain special instructions before use.
  • Do not handle until all safety precautions have been read and understood.
  • Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. [As modified by IV ATP]
  • Keep/Store away from clothing/…/combustible materials. [As modified by IV ATP]
  • Take any precaution to avoid mixing with combustibles.
  • Do not breathe dust/fume/gas/mist/vapours/spray.
  • Wash … thoroughly after handling.
  • Do not eat, drink or smoke when using this product.
  • Use only outdoors or in a well-ventilated area.
  • Contaminated work clothing should not be allowed out of the workplace.
  • Avoid release to the environment.
  • Wear protective gloves/protective clothing/eye protection/face protection. [As modified by IV ATP]
  • [In case of inadequate ventilation] wear respiratory protection. [As modified by IV ATP]
  • IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
  • If skin irritation or a rash occurs: Get medical advice/attention.
  • Wash contaminated clothing before reuse. [As modified by IV ATP]
  • In case of fire: Use … to extinguish. [As modified by IV ATP]
  • Collect spillage.
  • Store in a well ventilated place. Keep container tightly closed.
  • Store locked up.
  • Dispose of contents/container to … [… in accordance with local/regional/national/international regulation (to be specified)].

Experiments with this reagent