Chromic nitrate
Chromium trinitrate
Nitric acid, chromium(III) salt
Cr(NO3)3· 9H2O
Molecular mass: 400.2
ICSC # 1530
CAS # 7789-02-8
RTECS # GB6300000
UN # 2720
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/ Fire Fighting
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FIRE
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Not combustible but enhances combustion of other substances.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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Risk of fire and explosion.
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Exposure
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STRICT HYGIENE!
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Inhalation
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Cough.
Sore throat.
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Local exhaust or breathing protection.
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Fresh air, rest.
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Skin
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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Eyes
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Safety goggles.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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Ingestion
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Abdominal pain.
Diarrhoea.
Nausea.
Vomiting.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Do NOT induce vomiting.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting.
Personal protection: P2 filter respirator for harmful particles.
Do NOT let this chemical enter the environment.
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Separated from combustible and reducing substances.
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UN Hazard Class: 5.1
UN Packing Group: III
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Important Data
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Physical State; Appearance:
DEEP VIOLET CRYSTALS
Physical Dangers:
Chemical Dangers:
The substance is a strong oxidant and reacts with combustible and reducing materials.
The solution in water is a weak acid.
Occupational Exposure Limits:
TLV: (as Cr metal, Cr(III) compounds) 0.5 mg/m3 as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2004).
MAK not established.
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Routes of Exposure:
Inhalation Risk:
A harmful concentration of airborne particles can be reached quickly when dispersed.
Effects of Short-Term Exposure:
The substance
is irritating to
the respiratory tract
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Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact may cause skin sensitization.
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Physical Properties
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Decomposes below boiling point
Melting point: 66°C
Density: 1.8
g/cm3
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Solubility in water:
very good
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Environmental Data
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The substance is toxic to aquatic organisms.
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N O T E S
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Do NOT take working clothes home.
The recommendations on this Card also apply to Chromium(III) nitrate anhydrous.
Transport Emergency Card: TEC (R)-51G02-I+II+III
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ADDITIONAL INFORMATION
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ICSC: 1530
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CHROMIUM(III) NITRATE NONAHYDRATE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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