【Molecular weight】:169.08;

【Physical form】:Colourless crystals.

【Density】:1.705 (20 ℃);

【Composition】:Tech. is 95% pure.

【Melting point】:189.5 ℃;

【Flash point】:Not flammable;

【Vapour pressure】:1.31×10-2 mPa (25℃);

【Henry constant】:<2.1×10-7 Pa m3 mol-1;

【Partition coefficient(n-octanol and water)】:logP <-3.2 (pH 2-5, 20 ℃), (OECD107; EEC A8);

【pKa】:5.77(20 ℃), (OECD112);

【Solubility】:In water 11.6 g/l (25 ℃). Insoluble in common organic solvents, e.g. acetone, ethanol and xylene. The alkali-metal and amine salts are readily soluble in water.;

【Stability】:Glyphosate and all its salts are non-volatile, do not photochemically degrade and are stable in air. Glyphosate is stable to hydrolysis at pH 3, 6 and 9 (5-35℃).