Contaminant Information
Phosmet
CAS Number: 732-11-6
Basic Information
Synonym(s): Appa; Dimethyl phosphorodithioate S-ester with N-(mercaptomethyl)phthalimide; Dimethylphthalimidiomethyl dithiophosphate; Dimethyl S-(phthalimidomethyl) phosphorodithioate; Decemthion; Decemthion P-6; Ftalophos; Imidan; Kemolate; Percolate; Phosmet; Phosm
Formula: C11H12NO4PS2
Molecular Weight: 317.33
Melting Point (°C): 72.5
Contaminant Type: Phosmet is an insecticide.
Notes: Off-white crystalline solid
Solubility (in water)
- Solubility:
25
mg/l
e
Temperature (°C): 25
- Solubility:
22-25
mg/l
k
Temperature (°C): 25
Half-Life (in soil unless otherwise noted)
Toxicity Effects
- Organism Type:
Birds
h
Common Name: Red-wing blackbirds
Scientific Name: Agelaius phoeniceus
Toxicity: 18 mg/kg
Test: LD50
- Organism Type:
Birds
h
Common Name: Mallard
Scientific Name: Anas platyrhynchos
Toxicity: 1830 mg/kg
Test: LD50
- Organism Type:
Birds
h
Common Name: pheasant
Scientific Name: Phasianidae (Family)
Toxicity: 237 mg/kg
Test: LD50
- Organism Type:
Birds
h
Common Name: European starlings
Scientific Name: Sturnus vulgaris
Toxicity: >100 mg/kg
Test: LD50
- Organism Type:
Crustaceans
e
Common Name: Daphnia
Scientific Name: Daphnia magna
Toxicity: 2.7 mg/l
Test: 24h LC50
- Organism Type:
Crustaceans
e
Common Name: Daphnia
Scientific Name: Daphnia magna
Toxicity: 0.84 mg/l
Test: 48h LC50
- Organism Type:
Crustaceans
e
Scientific Name: Gammarus pseudolimnaeus
Toxicity: 2.4 µg/l
Test: 48h LC50
- Organism Type:
Fish
k
Common Name: Channel catfish
Scientific Name: Ictalurus punctatus
Toxicity: 11000 µg/l
Test: 96h LC50
- Organism Type:
Fish
k
Common Name: Bluegill
Scientific Name: Lepomis macrochirus
Toxicity: 70 µg/l
Test: 96h LC50
- Organism Type:
Fish
e
Common Name: Bluegill
Scientific Name: Lepomis macrochirus
Toxicity: 70 µg/l
Test: 96h LC50,S
- Organism Type:
Fish
e
Common Name: Smallmouth bass
Scientific Name: Micropterus dolomieu
Toxicity: 150 µg/l
Test: 96h LC50,S
- Organism Type:
Fish
k
Common Name: Rainbow trout
Scientific Name: Oncorhynchus mykiss
Toxicity: 560 µg/l
Test: 96h LC50
- Organism Type:
Fish
e
Common Name: Rainbow trout
Scientific Name: Oncorhynchus mykiss
Life Stage: Egg
Toxicity: 7300 µg/l
Test: 96h LC50,S
Notes: Eyed eggs
- Organism Type:
Fish
e
Common Name: Rainbow trout
Scientific Name: Oncorhynchus mykiss
Toxicity: 560 µg/l
Test: 96h LC50,S
- Organism Type:
Fish
e
Common Name: Rainbow trout
Scientific Name: Oncorhynchus mykiss
Life Stage: Fingerlings
Toxicity: >10000 µg/l
Test: 96h LC50,S
- Organism Type:
Fish
e
Common Name: Rainbow trout
Scientific Name: Oncorhynchus mykiss
Life Stage: Fry
Toxicity: >10000 µg/l
Test: 96h LC50,S
Notes: Yolk sac fry
- Organism Type:
Fish
e
Common Name: Chinook salmon or king salmon
Scientific Name: Oncorhynchus tshawytscha
Toxicity: 150 µg/l
Test: 96h LC50,S
- Organism Type:
Fish
k
Common Name: Fathead minnow
Scientific Name: Pimephales promelas
Toxicity: 7300 µg/l
Test: 96h LC50
- Organism Type:
Fish
e
Common Name: Fathead minnow
Scientific Name: Pimephales promelas
Toxicity: 11000 µg/l
Test: 96h LC50,S
- Organism Type:
Mammals
e
Common Name: Rat
Scientific Name: Muridae (Family)
Toxicity: 26 mg/kg bw
Test: LD50
- Organism Type:
Mammals
e
Common Name: Mouse
Scientific Name: Muridae (Family)
Toxicity: 160 mg/kg bw
Test: LD50
- Organism Type:
Mammals
h
Common Name: Rat
Scientific Name: Muridae (Family)
Toxicity: 113-160 mg/kg
Test: LD50
Soil Organic Carbon/Water Partition Coefficients
- Koc:
2.87-2.90
k
Formulation: log - calculated
Octanol-Water Partition Coefficients
- Log Kow:
3.0414
h
Notes: Source did not specify type of partition coeffecient or if value was the log
Work Cited
e
|
Verschueren, K. 1996. Handbook of Environmental Data on Organic Chemicals, 3rd edition. John Wiley & Sons, Inc., New York.
|
h
|
Extension Toxicology Network. Pages retrieved November, 2003 from http://ace.orst.edu/info/extoxnet/. Oregon State University, Corvallis, OR.
|
k
|
Montgomery, J. H. 1993. Agrochemicals Desk Reference: Environmental Data. Lewis Publishers, Boca Raton, FL.
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