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Fonofos

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Synonyms & Trade Names
Dyfonate®, Dyphonate, O-Ethyl-S-phenyl ethylphosphorothioate, Fonophos
CAS No.
944-22-9
RTECS No.
TA5950000
DOT ID & Guide
Formula
C₁₀H₁₅OPS₂
Conversion
1 ppm = 10.07 mg/m3
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 0.1 mg/m3 [skin]
OSHA PEL
none See Appendix G
Measurement Methods
NIOSH 5600;
OSHA PV2027
See: NMAM or OSHA Methods
Physical Description
Light-yellow liquid with an aromatic odor. [insecticide]
Molecular Weight
246.3
Boiling Point
?
Freezing Point
?
Solubility
0.001%
Vapor Pressure
(77°F): 0.0002 mmHg
Ionization Potential
?
Specific Gravity
1.15
Flash Point
>201°F
Upper Explosive Limit
?
Lower Explosive Limit
?
Class IIIB Combustible Liquid: Fl.P. at or above 200°F.
Incompatibilities & Reactivities
None reported
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
nausea, vomiting, abdominal cramps, diarrhea, salivation; headache, dizziness, lassitude (weakness, exhaustion); rhinorrhea (discharge of thin nasal mucus), chest tightness; blurred vision, miosis; cardiac irreg; muscle fasciculation; dyspnea (breathing difficulty)
Target Organs
respiratory system, central nervous system, cardiovascular system, blood cholinesterase
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:Daily
Provide:Eyewash, Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap flush immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0708
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health