Product Identification

Product Name

Edifenphos

Synonyms

(Ethoxy-phenylsulfanylphosphoryl)sulfanylbenzene
O-Ethyl S,S-diphenyl dithiophosphate
O-Ethyl S,S-diphenyl phosphorodithioate
S,S-Diphenyl O-ethyl phosphorodithioate

CAS

17109-49-8

Formula

C14H15O2PS2

Molecular Weight

310.38

EINECS

241-178-1

RTECS

TE3850000

RTECS Class

Agricultural Chemical and Pesticide; Mutagen

Merck

12,3560

Beilstein/Gmelin

1988797

Beilstein Reference

6-06

EC Index Number

015-121-00-4

Physical and Chemical Properties

Appearance

Yellow to brown liquid with a characteristic odor.

Solubility in water

50 mg/L (20 C)

Boiling Point

430

Vapor Pressure

3E-7 (25 C)

Density

1.231 g/cm3 (20 C)

Partition Coefficient

2.66

Heat Of Vaporization

65.9 kJ/mol

Usage

Fungicide for blast disease, ear blight, and stemrot in rice. Not approved for use in the us.

First Aid Measures

Ingestion

Seek medical assistance.

Inhalation

Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.

Skin

Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.

Eyes

Immediately flush with running water for at least 20 minutes.

Handling and Storage

Storage

Store at 2-8 C.

Hazards Identification

Inhalation

Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Effects of contact or inhalation may be delayed.

Skin

Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact.

Eyes

See Skin.

Hazards

Containers may explode when heated.

EC Risk Phrase

21 23/25 43 50/53

EC Safety Phrase

21 23/25 43 50/53

UN (DOT)

3018

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate protective gloves, clothing and goggles.

Respirators

Wear positive pressure self-contained breathing apparatus (SCBA).

Fire Fighting Measures

Flash Point

214

Fire Fighting

Small Fires: Dry chemical, CO2 or water spray. Large Fires: Water spray, fog or regular foam.

Fire Potential

Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks

Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.

Transport Information

UN Number

3018

Hazard Class

6.1

Stability and Reactivity

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.