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Data bank of environmental chemicals     |     The Finnish Environment Institute (SYKE)
 


19.4.2024

Data bank of environmental properties of chemicals


Chemical
Phoxim
CAS-number :
14816-18-3
 
Synonyms :
2-(diethoxyphosphinothionyloxyimino)2-phenylacetonitrile
alpha-(((diethoxyphosphinothioyl)oxy)imino)-benzeneacetonitrile
Baition
diethoxyphosphinothioyloxyimino(phenyl)acetonitrile
Foksiimi
O,O-Diethyl-alpha-cyanobenzylideneamino-oxyphosphonothioate
OMS-1170
phenylglyoxylonitrile oxime O,O-diethyl phosphorothionate
SRA 7502
Volation
 
Sumformula of the chemical :
C12H15N2O3PS
 
Purity, % :
80  at least 80%, WPSREG 1993
 
Known impurities :
* in technical grade
O,O-Diethyl phosphorochloridotioate (CAS 2524-04-1) < 0.5 %;
O,O,O-Triethyl phosphorothioate (CAS 126-68-1) < 0.6 - 1.2 %;
Oximether (=alpha-(ethoxyimino)benzeneacetonitrile < 1.0 - 1.5 %;
Cyanooxime (=alpha-(hydroxyimino)benzeneacetonitrile < 1.5 %;
4- Ethoxy-7-phenyl-3,5-dioxa-6-aza-4-phospha-6-octen-8-amide-
4- sulfide < 0.3 - 1.0 %;
E-Volaton (=E-alpha-(((diethoxyphosphinothionyl)oxy)imino)benzene-
acetonitrile < 3.0 - 4.5 %;
5-Ethoxy-2,8-diphenyl-4,6-dioxa-3,7-diaza-5-phospha-2,7-nonadiene-
dinitrile 5-sulfide < 0.5 - 1.0 %;
Benzylcyanide (=benzeneacetonitrile) (CAS 140-29-4) < 2.5 %;
Ammoniumchloride or ammoniumsulfate < 1.0 %;
Water < 0.2 %;
n-Butanol (solvent) 9.0 - 12 %
(WSPREG 1993)
 
Uses :
Active ingredient in insecticides.

Active ingredient in liquid wood preservatives with preventive
efficancy against wood-destroying fungi including softrot and
wood-destroying insects (WPSREG 1993).
 
State and appearance :
Liquid (WSPREG 1993).
 
Density, kg/m3 :
0.0012  20°C
0.0011  technical grade
  WPSREG 1993
 
Vapor pressure, mmHg :
0.000015  calculated, 20°C
2.625  technical grade, 20°C
  WPSREG 1993
 
Water solubility, mg/l :
10  < 10, MITI 1992
  --
20°C
1.5  20°C
  technical grade not soluble in water
  WPSREG. 1993
 
Flashing point, °C :
38  WPSREG 1993
 
Log octanol/water coefficient, log Pow :
4.38  MITI 1992
4.38  WPSREG 1993
 
Mobility :
Rf = 0.12 +/- 0.04 (thin-layer plate) (WPSREG 1993).
 
Other physicochemical properties :
Solubility in dichlormethane > 500 g/kg, in cyclohexane,
2-propanol, toluene and methylen chlorid > 600 g/kg (WPSREG 
1993).
 
Total degradation in soil :
T 1/2 = 25d, 40d (20-22°C) or 11-18 d (10-15°C) (WPSREG 1993).
 
Total degradation in water :
Biodegradation:
3-8% by BOD
period: 28d
substance: 100 mg/l
sludge: 30 mg/l
(MITI 1992)
 
Bioconcentration factor, fishes :
781  781 - 1610, 8w, Cyprinus carpio, conc 0.0166 mg/l,
1610 
412  412 - 1020, 8w, Cyprinus carpio, conc 0.00166 mg/l,
1020  MITI 1992
  --
412  412 - 1610, Cyprinus carpio
1610  WPSREG 1993
 
LD50 values to mammals in oral exposure, mg/kg :
250  250 - 2340, orl-mam,
2340  WPSREG 1993
 
LD50 values to birds in oral exposure, mg/kg :
10  orl-Agelaius phoeniceus
23.7  orl-Sturnus vulgaris
23.7  orl-Coturnix coturnix
5.62  orl-Passer domesticus
75  orl-Quiscalus quiscula
23.7  orl-Columba livia
  Schafer et al. 1983
  --
5.6  5.6 - 75, orl-birds,
75  WPSREG 1993
 
EC50 values to algae, mg/l :
0.62  24h, Scenedesmus subspicatus, WPSREG 1993
 
NOEC values to algae, mg/l :
0.1  < 0.1, Scenedesmus subspicatus,
  (nominal consentrations), WPSREG 1993
 
EC50 values to crustaceans, mg/l :
0.00052  48hr, Penaeus duodarum
0.00068  48hr, Daphnia magna
  WPSREG 1993
 
LOEC values to crustaceans, mg/l :
0.00008  21d, Daphnia magna, WPSREG 1993
 
NOEC values to crustaceans, mg/l :
0.000068  < 0.000068, 48h, Daphnia magna
0.000042  21d, Daphnia magna
0.0001  48h, Penaeus duodarum
  WPSREG 1993
 
LC50 values to fishes, mg/l :
0.1  0.1 - 1.0, srv,act, Salmo gairdneri,
Pesticide Manual 1983
0.1  0.1 - 1.0, srv,act, Cyprinus carpio,
Pesticide Manual 1983
1 - 10, srv,act, Carassius auratus,
10  Pesticide Manual 1983
  --
3.16  48hr, Oryzias latipes, MITI 1992
  --
0.22  96h, Lepomis macrochirus
0.00028  48h, Leiostomus xanthurus
2.14  96h, Leuciscus idus melanotus,
  WPSREG 1993
  --
0.082  96hr, Lepomis macrochirus, AQUIRE 1994
 
NOEC values to fishes, mg/l :
0.36  0.36 - 0.50, 96h, Salmo gairdneri,
0.5 
0.000001  < 0.000001, 48h, Leiostomus xanthurus,
96h, Leuciscus idus melanotus,
0.14  96h, Lepomis macrochirus,
  WPSREG 1993

References
70Anon. 1983c. Pesticide Manual. Worthing, C.R. (toim.) A world compedium. The British Crop Biotection Council. London. 7 th edition.
3107AQUIRE 1993 -. Aquatic Toxity Information Retrieval Database. U.S.Environmental Protection Agency, Office of Pesticides and Toxic Substances, Washington, D.C.
3105MITI 1992. Biodegradation and bioaccumulation data of existing chemicals based on the CSCL Japan. Compild under the Safety Division Basic Industries Bureau Ministry of International Trade & Industry, Japan. Edited by Chemicals Inspection & Testing Institute, Japan.
1743Schafer , E.W.Jr., Bowles, W.A.Jr., Hurlbut, J. 1983. The acute oral toxicity, repellency and hazard potential of 993 chemicals to one or more species of wild and domestic birds. Arch. Environ. Contam. Toxicol. 12: 355 - 382.
3119WPSREG. Application for registration of wood preservatives/ slimicides. National Board of Waters and the Environment, Chemicals Control Unit.

 
 
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