ICSC 0925 - NALED

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

NALED

ICSC: 0925
_{April 2005}

1,2-Dibromo-2,2-dichloroethyl dimethyl phosphate

CAS No: 300-76-5
RTECS No: TB9450000
UN No: 3018
EC No: 015-055-00-6

C₄H₇Br₂Cl₂O₄P
Molecular mass: 380.8

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		STRICT HYGIENE! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!	IN ALL CASES CONSULT A DOCTOR!
Inhalation	Pupillary constriction, muscle cramp, excessive salivation. Sweating. Nausea. Vomiting. Dizziness. Convulsions. Unconsciousness.	Ventilation, local exhaust, or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	MAY BE ABSORBED! Redness. Pain. (Further see Inhalation).	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
Eyes	Redness. Pain. Blurred vision.	Face shield or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	Abdominal cramps. Vomiting. Diarrhoea. (See inhalation).	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Rest. Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers. Carefully collect remainder, then remove to safe place. If liquid, collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place.	Xn Symbol N Symbol R: 21/22-36/38-50 S: (2-)36/37-61 UN Hazard Class: 6.1 UN Pack Group: III	Do not transport with food and feedstuffs. Marine pollutant.

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-61GT6-III	Separated from strong oxidants, strong acids, food and feedstuffs. Dry. Well closed. Store in an area without drain or sewer access.

IMPORTANT DATA

Physical State; Appearance
COLOURLESS TO YELLOW LIQUID OR WHITE CRYSTALS, WITH PUNGENT ODOUR.

Chemical dangers
The substance decomposes on heating, on contact with acids, oxidants producing toxic and corrosive fumes including hydrogen bromide, hydrogen chloride, phosphorous oxides. The substance decomposes on contact with water producing dichlorvos and dichloroacetaldehyde. Attacks metal, plastic, rubber and coatings.

Occupational exposure limits
TLV: (Inhalable fraction) 0.1 mg/m³ as TWA; (skin); A4 (not classifiable as a human carcinogen); SEN; BEI issued; (ACGIH 2005).
MAK: being revised

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

Inhalation risk
A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20°C; on spraying or dispersing, however, much faster.

Effects of short-term exposure
The substance is irritating to the eyes, the skin and the respiratory tract. The substance may cause effects on the nervous system, resulting in convulsions, respiratory depression. Cholinesterase inhibitor. Exposure far above the OEL may result in death. The effects may be delayed. Medical observation is indicated.

Effects of long-term or repeated exposure
Cholinesterase inhibitor; cumulative effect is possible: see acute hazards/symptoms.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point at 0.066 kPa: 110°C Melting point: 26.5-27.5°C Relative density (water = 1): 1.96 at 25°C Solubility in water: none Vapour pressure, Pa at 20°C: 0.26 Relative vapour density (air = 1): 13.2 Octanol/water partition coefficient as log Pow: 1.38	The substance is very toxic to aquatic organisms. This substance may be hazardous in the environment; special attention should be given to honey bees. This substance does enter the environment under normal use. Great care, however, should be given to avoid any additional release, e.g. through inappropriate disposal.

NOTES

Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Carrier solvents used in commercial formulations may change physical and toxicological properties.
See ICSC 0690 Dichlorvos (decomposition product of Naled).

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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