ACEPHATE

Common name: Acephate

Chemical name: (RS)-N-[methoxy(methylthio)phosphinoyl]acetamide

CAS No: 30560-19-1

Empirical formula: C₄H₁₀NO₃PS

Molecular weight: 183.17

Structural formula:

Physical & Chemical Properties:

Appearance: white crystalline powder

Odour: slight odour, or odourless

Melting point: 93℃

Vapor pressue: 1.3x10^-6mPa, 24℃

Solubility: apt to soluble in water

Solubility in organic solvent: In acetone 15.1, ethyl acetate 3.5, benzene 1.6, hexane 0.01 (all in g/100 ml at 20℃; ethanol < 50 g/l at 20℃

Partition coefficient: -1.87

Adsorption coefficient: 0.48

Application: acephate is an organophosphate foliar insecticide of moderate persistence with residual systemic activity of about 10-15 days at the recommended use rate. It is used primarily for control of aphids, including resistant species, in vegetables (e.g. potatoes, carrots, greenhouse tomatoes, and lettuce) and in horticulture (e.g. on roses and greenhouse ornamentals). It also controls leaf miners, caterpillars, sawflies and thrips in the previously stated crops as well as turf, and forestry. By direct application to mounds, it is effective in destroying imported fire ants.

Products available: Acephate 97%min technical; 75% SP

Package: 50kg fiber drum.