Bromine cyanide
Cyanobromide
Bromocyan
BrCN
Molecular mass: 105.9
ICSC # 0136
CAS # 506-68-3
RTECS # GT2100000
UN # 1889
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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 forms flammable gas on heating.
Gives off irritating or toxic fumes (or gases) in a fire.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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Exposure
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AVOID ALL CONTACT!
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IN ALL CASES CONSULT A DOCTOR!
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•Inhalation
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Sore throat.
Cough.
Burning sensation.
Convulsions.
Dizziness.
Headache.
Shortness of breath.
Laboured breathing.
Nausea.
Unconsciousness.
Vomiting.
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Closed system and ventilation.
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Fresh air, rest.
Half-upright position.
Artificial respiration may be needed.
Refer for medical attention.
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•Skin
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MAY BE ABSORBED!
Redness.
Pain.
Blisters.
(Further see Inhalation).
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
Refer for medical attention.
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•Eyes
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Redness.
Pain.
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Safety goggles
,
face shield
or
eye protection in combination with breathing protection.
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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.
(Further see Inhalation).
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Refer for medical attention.
See Notes.
Rinse mouth.
Induce vomiting (ONLY IN CONSCIOUS PERSONS!).
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Spillage Disposal
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Storage
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Packaging & Labelling
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Evacuate danger area!
Consult an expert!
Ventilation.
Sweep spilled substance into sealable containers.
Carefully collect remainder,
then remove to safe place.
Do NOT let this chemical enter the environment.
Personal protection: complete protective clothing including self-contained breathing apparatus.
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Separated from
food and feedstuffs
.
See Chemical Dangers.
Dry.
Well closed.
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Airtight.
Do not transport with food and feedstuffs.
Marine pollutant.
UN Hazard Class: 6.1
UN Subsidiary Risks: 8
UN Packing Group: I
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Important Data
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Physical State; Appearance:
COLOURLESS
OR
WHITE
CRYSTALS
, WITH PUNGENT ODOUR.
Physical Dangers:
The vapour is heavier than air.
Chemical Dangers:
The substance decomposes
on heating
and
on contact with
acids
producing highly toxic and flammable hydrogen cyanide (see ICSC 0492) and corrosive hydrogen bromide (see ICSC 0282).
Reacts with strong oxidants.
Reacts slowly with water and moistureto produce hydrogen bromide and hydrogen cyanide.
Attacks many metals in presence of water.
Occupational Exposure Limits:
TLV not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its vapour,
through the skin
and
by ingestion.
Inhalation Risk:
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
is severely irritating to
the eyes,
the skin
and
the respiratory tract.
Inhalation of the vapour may cause lung oedema (see Notes).
The effects may be delayed.
The substance may cause effects on the cellular respiration
, resulting in
convulsions
,
unconsciousness
and
respiratory failure
.
Medical observation is indicated.
Exposure may result in death.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 61-62°C
Melting point: 52°C
Density: 2.0
g/cm3
Solubility in water: slow
reaction
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Vapour pressure, kPa at 25°C: 16.2
Relative vapour density (air = 1): 3.6
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.53
Sublimes at room temperature
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Environmental
Data
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It is strongly advised not to let the chemical enter into the environment.
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N O T E S
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Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Sublimes at room temperature.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential.
Immediate administration of an appropriate spray, by a doctor or a person authorized by him/her, should be considered.
Commercial products are generally solutions in chloroform.
Environmental effects from the substance have not been investigated.
Card has been partly updated in October 2005. See section Emergency Response.
Transport Emergency Card: TEC (R)-61GTC2-I
NFPA Code: H 3; F 0; R 1;
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ADDITIONAL INFORMATION
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ICSC: 0136
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CYANOGEN BROMIDE
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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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