Ammonium dichromate GR (stabilized with 0.5-3% water)
Ammonium bichromate ; Ammonium pyrochromate
MERCK
E Xi
CAS :7789-09-5
Storage class :4.1 A
Do not allow to enter sewerage system
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Hazard / Symptom
Hazard Explosive when dry. Contact with combustible material may cause fire. Irritating to eyes, respiratory system and skin. May cause sensitization by skin contact.
After inhalation absorption. Burns in mucous membranes. Damage to nasal mucosa (possibly perforation of the septum). Irritations in the upper airways.
After skin contact being a strong oxidant, the substance can cause burns and ulcerations. Poor tendency for ulcers to heal following penetration of substance into the wound.
After eye contact burns.
After swallowing burns. Severe symptoms in the gastrointestinal tract, such as bloody diarrhoea, vomiting (aspiration pneumonia!), spasms, unconsciousness, circulatory collapse.
Systemic effects after absorption formation of methaemoglbinaemia, damage to liver and kidneys may occur.
Further data in susceptible persons the substance rapidly leads to sensitisation and allergic reactions of the airways (risk of pneumonia !).
Additional informations Inhalable chromium(VI) compounds have proved to be definitely carcinogenic in animal experiments.
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Protective equipments / General working measures
GLASS GLOVE RESPIRATOR
NO SMOKING
After contact with skin, wash immediately with plenty of water. This material and its container must be disposed of in a safe way.
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Accidental release measures / Fire-fighting measures
Person-related precautionary measures Avoid inhalation of dusts.
Procedures for cleaning / absorption Keep moist. Take up carefully. Forward for disposal. Clean up affected area. Keep moist up to disposal.
Suitable extinguishing media water
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First aid
FIRST AID
After inhalation fresh air. If necessary, apply mouth-to-mouth resuscitation or mechanical ventilation.
After skin contact wash off with plenty of water. Remove contaminated clothing.
After eye contact rinse out with plenty of water for at least 10 minutes with the eyelid held wide open. Immediately summon eye specialist.
After swallowing make victim drink plenty of water, induce vomiting. Immediately summon doctor. Keep airways free. Carefully clean wounds and cover with sterile dressing material.
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