International Chemical Safety Cards

BROMACIL ICSC: 1448
World Health Organization (WHO) International Labour Organization (ILO) United Nations Environmental Programme (UNEP) European Commission National Institute for Occupational Safety and Health (NIOSH)
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
June 05, 2003 Validated
TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Not combustible. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire.

In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST!

 •INHALATION Cough.

Fresh air, rest.
 •SKIN Redness.
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
 •EYES Redness. Pain.
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
 •INGESTION Nausea. Vomiting. Diarrhoea.
Do not eat, drink, or smoke during work.
Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
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.)
Keep in a well-ventilated room. Separated from strong oxidants, and strong acids.

SEE IMPORTANT INFORMATION ON BACK
ICSC: 1448 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards

BROMACIL ICSC: 1448
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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/m, as TWA; A3; (ACGIH 2003).
OSHA PEL: none
NIOSH REL: TWA 1 ppm (10 mg/m3)
NIOSH IDLH: N.D. See: IDLH INDEX


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by ingestion .

INHALATION RISK:
Evaporation at 20C 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:
PHYSICAL
PROPERTIES
Melting point: 158-160C
Density: 1.55
g/cm
Solubility in water, g/100 ml at 25C: 0.08
Vapour pressure, Pa at 25C: negligible
Octanol/water partition coefficient as log Pow: 1.88-2.11
ENVIRONMENTAL
DATA
Environmental Hazard placard The substance is very toxic to aquatic organisms.
N O T E S
Carrier solvents used in commercial formulations may change physical and toxicological properties.
ADDITIONAL INFORMATION


ICSC: 1448 BROMACIL
(C) IPCS, CEC, 1994
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.