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Malathion
Malathion
- CAS:
- 121-75-5
- MF:
- C10H19O6PS2
- MW:
- 330.36
Properties
- Melting point:
- 2.85°C
- Boiling point:
- 156°C
- Density
- 1.2076
- vapor pressure
- 7.95 at 25 °C (gas saturation method-GC, Kim et al., 1984)
- refractive index
- nD25 1.4985
- Flash point:
- -18 °C
- storage temp.
- APPROX 4°C
- solubility
- Slightly soluble in water, miscible with acetone, with cyclohexane, with ethanol (96 per cent) and with vegetable oils.
- form
- liquid
- color
- Light yellow to yellow
- Specific Gravity
- 1.23 (25℃)
- biological source
- human
- Water Solubility
- 0.0145 g/100 mL
- Specific Activity
- 15-21nmol/min·mg
- Henry's Law Constant
- (x 10-9 atm?m3/mol): 4.89 at 25 °C (wetted-wall column, Fendinger and Glotfelty, 1990)
- Exposure limits
- NIOSH REL: TWA 10 mg/m3, IDLH 250 mg/m3; OSHA PEL: TWA 15 mg/m3; ACGIH TLV: TWA 10 mg/m3.
- Stability:
- Stable. Incompatible with oxidizing agents, metals.
- LogP
- 2.360
- CAS DataBase Reference
- 121-75-5(CAS DataBase Reference)
- IARC
- 2A (Vol. 30, Sup 7, 112) 2017
- NIST Chemistry Reference
- Malathion(121-75-5)
- EPA Substance Registry System
- Malathion (121-75-5)
Safety Information
- Symbol(GHS)
GHS07,GHS09
- Signal word
- Warning
- Hazard statements
- H302-H317-H410
- Precautionary statements
- P261-P264-P273-P280-P301+P312-P302+P352
- Hazard Codes
- Xn;N,N,Xn,F
- Risk Statements
- 22-50/53-67-65-38-11-43
- Safety Statements
- 2-24-60-61-62-46-37-16
- RIDADR
- UN 2783
- OEB
- B
- OEL
- TWA: 10 mg/m3 [skin]
- RTECS
- WM8400000
- HazardClass
- 6.1(b)
- PackingGroup
- III
- HS Code
- 29309090
- Hazardous Substances Data
- 121-75-5(Hazardous Substances Data)
- Toxicity
- LD50 in female, male rats (mg/kg): 1000, 1375 orally (Gaines)
- IDLA
- 250 mg/m3
Use
Malathion is a clear amber liquid. It is sparingly soluble in water, but soluble in a majority of organic solvents. The US EPA grouped malathion under GUP. It is used as an insecticide as well as an acaricide for the control of pests. Malathion is used for the control of sucking insects and chewing insects on fruits and vegetables, and is an effective insecticide for the control of several household pests, such as housefl ies, cockroaches, mosquitos, aphids, animal ectoparasites, and human head and body lice. It is also found in formulations with many other pesticides.
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