FIELD: chemistry.
SUBSTANCE: invention relates to a soluble oil composition for use as lubricant and coolant oil, containing:| a) base oil; b) an emulsion stabilising amount of neutralised carboxylic acid obtained from tall oil; c) at least one ultra-alkaline sulphonate of an alkali-earth metal; and, optionally, d) at least one additive selected from a group consisting of an antiscoring agent, an antiwear agent, an emulsifier, an antirust agent, a corrosion inhibitor, an anti-foaming agent, antioxidant additives, surfctants, a friction modifier and stabilisers.
EFFECT: environmentally safe stable lubricant-coolant oil emulsions for cutting metal with improved cutting properties.
12 cl, 53 ex, 12 tbl
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