Malathion material , Intermediate, Property, Toxic parameters

1, Maleic acid: C₄H₂O₃ white powder, with irritating odor, Melting point: 52.8℃, density: 1.48.
　　2, Ethanol: C₂H₅OH colorless transparent liquid , Boiling point: 78.3℃, It is inflammable and explosive chemicals, A grade explosive chemicals., explosive limit: 3.28%-18.95%, Flash point21.1℃(Open).
　　3, Phosphorus pentasulfide: P₂S₅ light yellow powdery solid, it is inflammable chemicals, . Melting point>265℃. A grade explosive chemicals, .
　　4, methanol: CH₃OH colorless transparent liquid , with irritating odor , Boiling point: 64.8℃, It is inflammable and explosive chemicals, medium toxicity. A grade explosive chemicals, explosive limit: 4.4%-5.5%, Flash point16.0℃(open), Self-ignition: 473℃.
　　5, Benzene: colorless transparent liquid , with perfume odor, Boiling point: 80.1℃, It is inflammable and explosive chemicals, medium toxicity. A grade explosive chemicals,, explosive limit: 8.0-1.2%, Flash point: 11℃, Self-ignition: 659℃.
　　6, O,O-dimethylphosphonodithioate: black liquid , smell and toxic chemicals
　　7, DEM: white crystal or liquid , Melting point: 1-2℃ low toxicity.
　　8, Malathion : Pure is light yellow liquid , Melting point: 2.85℃, Boiling point: 156-157℃, density: 1.23, 45% Malathion EC is light yellow to brown oily liquid , low toxicity,
　　9, H₂S: colorless toxic gas. It is inflammable and explosive gas , explosive limit: 4.3%-45.5%.