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NIOSH

ETHOPROPHOS

ICSC: 1660

O-ethyl-S,S-dipropyl phosphorodithioate
Phosphorodithioic acid, O-ethyl S,S-dipropyl ester
Ethoprop
C8H19O2PS2
Molecular mass: 242.3
ICSC # 1660 		CAS # 13194-48-4
RTECS # TE4025000
UN # 3018
EC # 015-107-00-8
October 11, 2006 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Heating will cause rise in pressure with risk of bursting.
NO open flames.
Water spray, dry powder, carbon dioxide, alcohol-resistant foam.
EXPLOSION

In case of fire: cool drums, etc., by spraying with water but avoid contact of the substance with water.
EXPOSURE
PREVENT GENERATION OF MISTS! STRICT HYGIENE!
IN ALL CASES CONSULT A DOCTOR!
•INHALATION Dizziness. Nausea. Sweating. Muscle twitching. Pupillary constriction, muscle cramp, excessive salivation. Laboured breathing. Convulsions. Unconsciousness.
Local exhaust or breathing protection.
Fresh air, rest. Artificial respiration may be needed. Refer immediately for medical attention.
•SKIN MAY BE ABSORBED! (See Inhalation).
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer immediately for medical attention. Wear protective gloves when administering first aid.
•EYES MAY BE ABSORBED! 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. Diarrhoea. Vomiting. (Further see Inhalation).
Do not eat, drink, or smoke during work. Wash hands before eating.
Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer immediately for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Personal protection: complete protective clothing including self-contained breathing apparatus. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT let this chemical enter the environment.
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Store in an area without drain or sewer access. Ventilation along the floor.
Do not transport with food and feedstuffs.
Marine pollutant.
T+ symbol
N symbol
R: 25-26/27-43-50/53
S: 1/2-27/28-36/37/39-45-60-61
UN Hazard Class: 6.1
UN Packing Group: I
Signal: Danger
Skull-Health haz-Enviro
Fatal if swallowed
Fatal in contact with skin
Fatal if inhaled
Causes damage to nervous system
Very toxic to aquatic life
ICSC: 1660 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.

ETHOPROPHOS

ICSC: 1660

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A

PHYSICAL STATE; APPEARANCE:
PALE YELLOW LIQUID, WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes at room temperature producing flammable n-Propylmercaptan (see ICSC 1492), and on heating producing toxic fumes including phosphorus oxides and sulfur oxides .

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body in hazardous amounts by inhalation, through the skin, eyes and by ingestion. 511000,13515000 511000,13515000

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
Cholinesterase inhibition. The substance may cause effects on the nervous system , resulting in convulsions and respiratory depression . Exposure 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

Boiling point at 0.03kPa: 86-91°C
Melting point: -13°C
Relative density (water = 1): 1.09
Solubility in water, g/100 ml at 20°C: 0.075
Vapour pressure, Pa at 20-25°C: 0.05
Relative vapour density (air = 1): 8.4
Flash point: see Notes
Octanol/water partition coefficient as log Pow: 3.6

ENVIRONMENTAL
DATA

The substance is very toxic to aquatic organisms. 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.

N O T E S

Do NOT take working clothes home. The substance is combustible but no flash point is available in literature. 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.
Transport Emergency Card: TEC (R)-G1GT6-I

ADDITIONAL INFORMATION



ICSC: 1660 ETHOPROPHOS
(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.
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