Liquid Paraffin

INCI Name: Praffinum Liquidum (Light Mineral Oil)
CAS : 8012-95-1

Liquid Paraffin Oil used as a blending base for Pharmaceutical and Cosmetic Products such as creams, lotions, hair oils, petroleum jelly, ointments.

Applications

Pharmaceutical & Cosmetic

Sr. No	Tests	Specification
1	Description	A transparent, colourless, oily liquid, free from fluorescence in daylight, odourless.
2	Solubility	Soluble in chloroform, in ether and in light petroleum (40° to 60°), practically insoluble in water and in ethanol (95 per cent). Miscible with fixed and volatile oils.
3	Weight per ml	0.860 g to 0.904 g
4	Acidity or alkalinity	NMT 0.1 ml of 0.1 M sodium hydroxide is required to change the colour of the indicator to pink
5	Light absorption	Absorption is NMT 0.1
6	Viscosity	110 mPas. to 230 mPas.
7	Readily carbonisable substance	The lower acid layer is not more intensely colored than a mixture of 3ml of FCS, 1.5 ml of CCS and 0.5 ml of CSS.
8	Solid paraffins	The liquid is sufficiently clear that a black line, 0.5 mm in width, held vertically behind the vessel is easily seen
9	Sulphur compound	The mixture remains colourless.

Sr. No	Tests	Specification
1	Description	Colourless, transparent, oily liquid, free from fluorescence in daylight
2	Solubility	Practically insoluble in water, slightly soluble in ethanol (96 per cent), miscible with hydrocarbons.
3	Identification : B. Test	To the aqueous phase add 0.1 ml of phenolphthalein solution R. The solution became red.
	Identification : C. Test	Complies Viscosity test
4	Acidity or alkalinity	NMT 0.1 ml of 0.1 M sodium hydroxide is required to change the colour of the indicator to pink
5	Relative density	0.827 to 0.890
6	Viscosity	110 mPa·s. to 230 mPa·s
7	Polycyclic aromatic hydrocarbon	The absorbance of the test solution exceed one-third that of the reference solution at 275 nm
8	Readily carbonisable substance	The lower layer is not more intensely colored than a mixture of primary solution
9	Solid paraffins	To be easily seen against a white background

Sr. No	Tests	Specification
1	Description	Colorless, tasteless not more than a faint odor of petroleum when heated.
2	Solubility	Insoluble in water and in alcohol; soluble in volatile oils. Miscible with most fixed oils, but not with castor oil.
3	Identification : A	Infrared Absorption
	Identification : B	It meets the requirements in specific test for viscosity.
4	Limit of polycyclic aromatic hydrocarbons	Limit of polycyclic aromatic hydrocarbons
5	Specific gravity	0.845 to 0.905
6	Viscosity	34.4 – 150 mm / S- at 40° C
7	Acidity	NMT 1.0 mL of 0.01 N sodium hydroxide is required to produce pink color.
8	Readily carbonisable substance	The acid portion of sample solution does not become darker than the standard solution.
9	Solid paraffins.	The liquid is sufficiently clear that a black line, 0.5 mm in width, held vertically behind the vessel is easily seen.
10	Sulphur compound	No dark brown color develops.

Sr. No	Tests	Specification
1	Description	colourless, transparent, oily liquid, free from fluorescence in daylight
2	Solubility	Practically insoluble in water, slightly soluble in ethanol (96%), miscible with hydrocarbons.
3	Identification B. Test	The solution becomes red
	Identification C. Test	Viscosity
4	Acidity or alkalinity	Not more than 0.1 mL of 0.1 M sodium hydroxide is required to change the colour of the indicator to pink.
5	Relative density	0.827 to 0.890
6	Viscosity	110 mPa•s to 230 mPa•s
7	Polycyclic aromatic hydrocarbons	At no wavelength between 260 nm and 420 nm does the absorbance of the test solution exceed one-third that of the reference solution at 275 nm
8	Readily carbonisable substances	The lower layer is not more intensely coloured (2.2.2, Method I) than a mixture of 0.5 mL of blue primary solution, 1.5 mL of red primary solution, 3.0 mL of yellow primary solution and 2 mL of a 10 g/L solution of hydrochloric acid R
9	Solid paraffins	The liquid is sufficiently clear for a black line, 0.5 mm wide, to be easily seen against a white background held vertically behind the tube