| 摘要 |
PURPOSE:To obtain the titled compound having low corrosion properties to metals, improved wear resistance, frictional resistance, lubricating properties, etc., by reacting a hexavalent Mo compound with an alkali hydrosulfide, etc., O,O'-diorganophosphorodithioate, etc. and a reducing agent. CONSTITUTION:(A) A hexavalent Mo compound (e.g., MoO3, etc.) is reacted with (B) at least one compound selected from H2S, an alkali hydrosulfide (e.g., KSH, etc.), a M2S (M is alkali metal or ammonium) (e.g., Na2S, etc.), (C) a compound shown by the formula (X1, X2, Y1, and Y2 are Y, or S; n is 0, or 1; R1 and R2 are organic residue) or its salt (e.g., di-2 ethylhexylphosphoro dithionic acid, etc.), and (D) a reducing agent (e.g., Na2SO3, etc.) except the components B and C, capable of reducing the component A to pentavalent or tetravalent Mo compound in a ratio of 1 equivalent component A, 0.08-3.8 equivalents component B, and 0.8-3mol component C based on 1mol component A at 60-110 deg.C for 2-10hr to give the aimed compound.
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