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Chlorpyrifos suppliers
- CAS:
- 2921-88-2
- MF:
- C9H11Cl3NO3PS
- MW:
- 350.59
Properties
- Melting point::
- 42-44°C
- Boiling point::
- 200°C
- Density :
- 1.398
- vapor pressure :
- 5.03 x 10-5 mmHg at 25 °C (subcooled liquid vapor pressure calculated from GC retention time data,Hinckley et al., 1990)
- Flash point::
- 2 °C
- storage temp. :
- APPROX 4°C
- solubility :
- (At 25 °): 6.5, 7.9, 6.3, and 0.45 kg/kg in acetone, benzene, chloroform, and methanol, respectively (Worthing and Hance, 1991)
- pka:
- -5.28±0.10(Predicted)
- form :
- solid
- color :
- White to off-white
- Water Solubility :
- Insoluble. 0.00013 g/100 mL
- Merck :
- 13,2208
- BRN :
- 1545756
- Henry's Law Constant:
- 8.19 at 5 °C, 20.7 at 15 °C, 22.7 at 20 °C, 35.5 at 25 °C, 146 at 35 °C:in 3% NaCl solution: 32.3 at 5 °C, 82.9 at 15 °C, 301 at 25 °C, 535 at 35 °C (gas stripping-GC, Cetin et al., 2006)
- Exposure limits:
- OSHA PEL: TWA 0.2 mg/m3, STEL 0.6 mg/m3; ACGIH TLV: TWA 0.2 mg/m3, STEL 0.6 mg/m3
- Stability::
- Stable. Incompatible with strong oxidizing agents.
- InChIKey:
- SBPBAQFWLVIOKP-UHFFFAOYSA-N
- LogP:
- 5.21 at 20℃
SecurityInformation
- Symbol(GHS) :
-
GHS06,GHS09
- Signal word :
- Danger
- Hazard statements :
- H301-H410
- Precautionary statements :
- P264-P270-P273-P301+P310-P391-P405
- Hazard Codes :
- T;N,N,T,Xn,F,Xi
- Risk Statements :
- 25-50/53-36-20/21/22-11-38
- Safety Statements :
- 1/2-45-60-61-36/37-26-16
- RIDADR :
- UN 2783
- OEB:
- C
- OEL:
- TWA: 0.2 mg/m3, STEL: 0.6 mg/m3 [skin]
- WGK Germany :
- 3
- RTECS :
- TF6300000
- HazardClass :
- 6.1(b)
- PackingGroup :
- III
- HS Code :
- 29333990
- Toxicity:
- LD50 orally in rats: 145 mg/kg (Schafer)
- Use:
- Chlorpyrifos belongs to a class of insecticides known as organophosphates. Technical chlorpyrifos is amber to white crystalline solid with a mild sulphur odour. Formulations of chlorpyrifos include emulsifiable concentrate, dust, granular wettable powder, microcapsule, pellet, and sprays. Chlorpyrifos is widely used as an active ingredient in many commercial insecticides such as Dursban and Lorsban to control household pests, mosquitoes, and pests in animal houses.
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