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Description
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A transparent, colourless, oily liquid, free from fluorescence by daylight
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Solubility
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Miscible with fixed and volatile oils. Soluble in chloroform, in ether and in light petroleum (40°-60°), practically insoluble in water and in ethanol (95%)
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Weight/ mL
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0.860 g to 0.904 g
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Viscosity
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110 mPas to 230 mPas
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Acidity or alkalinity
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The solution should be colourless and not more than 0.1 ml of 0.01 M sodium hydroxide should required to change the colour of the solution to pale pink
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Light absorption
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Absorption should not more than 0.1
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Readily carbonisable substance
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The colour of the emulsion should not darker than that of the standard mixture when shaken vigorously
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Solid paraffins
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After 4 hours the liquid should be sufficiently clear that a black line; 0.5 mm in width, held vertically behind the vessel should be easily seen
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Sulphur compounds
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The mixture should remains colourless
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