5-Bromo-3-sec-butyl-6-methyl uracil
5-Bromo-6-methyl-3-(1-methylpropyl) uracil
5-Bromo-6-methyl-3-(1-methylpropyl)-2,4(1H,3H)-pyrimidinedione
2,4(1H,3H)-Pyrimidinedione, 5-bromo-6-methyl-3-(1-methyl propyl)-
C9H13BrN2O2
Molecular mass: 261.1
ICSC # 1448
CAS # 314-40-9
RTECS # YQ9100000
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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.
Liquid formulations containing organic solvents may be flammable.
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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PREVENT DISPERSION OF DUST!
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•Inhalation
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Cough.
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Fresh air, rest.
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•Skin
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Redness.
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Protective gloves.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
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•Eyes
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Redness.
Pain.
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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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Nausea.
Vomiting.
Diarrhoea.
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Do not eat, drink, or smoke during work.
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Give plenty of water to drink.
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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Do NOT let this chemical enter the environment.
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.
Carefully collect remainder,
then remove to safe place.
(Extra personal protection: P2 filter respirator for harmful particles.)
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Keep in a well-ventilated room.
Separated from
strong oxidants,
and
strong acids.
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Important Data
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Physical State; Appearance:
COLOURLESS
TO WHITE
CRYSTALS
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
producing
toxic fumes
including
hydrogen bromide
and
nitrogen oxides
.
The substance decomposes
on contact with
acids
or
oxidants
.
Occupational Exposure Limits:
TLV: 10 mg/m3, as TWA; A3; (ACGIH 2003).
OSHA PEL: none
NIOSH REL: TWA 1 ppm (10 mg/m3)
NIOSH IDLH: N.D. See: IDLH INDEX
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Routes of Exposure:
The substance can be absorbed into the body
by ingestion
.
Inhalation Risk:
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly.
Effects of Short-Term Exposure:
The substance
is mildly irritating to
the eyes
,
the skin
and
the respiratory tract
.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Melting point: 158-160°C
Density: 1.55
g/cm3
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Solubility in water, g/100 ml at 25°C: 0.08
Vapour pressure, Pa at 25°C: negligible
Octanol/water partition coefficient as log Pow: 1.88-2.11
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Environmental
Data
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The substance is very toxic to aquatic organisms.
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N O T E S
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Carrier solvents used in commercial formulations may change physical and toxicological properties.
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ADDITIONAL INFORMATION
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ICSC: 1448
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BROMACIL
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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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