102403

Potassium dichromate, volumetric standard secondary reference material for redox titration, traced back to NIST Standard Reference Material (SMR)

Potassium bichromate ; Potassium pyrochromate

CAS :7778-50-9

Do not allow to enter sewerage system

Hazard / Symptom
Hazard	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.

Protective equipments / General working measures

Do not breathe dust. After contact with skin, wash immediately with plenty of .

Accidental release measures / Fire-fighting measures
Person-related precautionary measures	Avoid inhalation of dusts in all circumstances. Avoid substance contact.
Procedures for cleaning / absorption	Carefully take up dry. Forward for disposal. Clean up affected area. Avoid generation of dusts.
Suitable extinguishing media	Water, foam.

First aid

After inhalation	fresh air.
After skin contact	wash off with plenty of water. Remove contaminated clothing.
After eye contact	rinse out with plenty of water with the eyelid held wide open. Summon eye specialist.
After swallowing	make victim drink plenty of water, induce vomiting, summon doctor.
Additional informations	General information: Carefully clean wounds and cover with sterile dressing material.