UnitedStatesPharmacopeia(USP)ReferenceStandard , 121-75-5
CAS NO.：121-75-5
Empirical Formula: C10H19O6PS2
Molecular Weight: 330.36
MDL number: MFCD00036233
EINECS: 204-497-7
PRODUCT 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℃) |
| Water Solubility | 0.0145 g/100 mL |
| 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) |
Description and Uses
Malathion, a clear amber liquid, is sparingly soluble in water but soluble in a majority of organic solvents. The U.S. Environmental Protection Agency (U.S. EPA) grouped malathion under GUP, meaning general use pesticide. 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. Malathion is an effective insecticide for the control of several household pests such as houseflies, cockroaches, mosquitoes, aphids, animal ectoparasites, and human head and body lice. Malathion is also found in formulations with many other pesticides.
Insecticide for control of sucking and chewing insects and spider mites on vegetables, fruits, ornamentals, field crops, greenhouses, gardens and forestry.
Safety
| 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 |
