Mineral Oil 70 USP

Applications

Mineral oil, also known as liquid paraffin, is a naturally-derived odorless, colorless oily liquid. This variety of Mineral Oil 70 – USP represents the most refined, purest grade with a low viscosity. Mineral oil in cosmetics may help prevent moisture loss and rejuvenate one’s skin due to its natural emollient properties, making this a very common ingredient in topical personal-care products such as ointments, creams, sunscreen and lip care. In additional to personal-care formulations, bulk mineral oil 70 is often used in a wide-range of industrial applications as a lubricant or release agent. It’s used in the rubber, machinery, light textile, petrochemical and pharmaceutical industries. This product has been tested and meets the standards set by the United States Pharmacopeia (USP) for purity and quality.

Specifications

Description
Colorless, transparent, oily liquid, free or practically free from fluorescence. It is odorless and tasteless when cold and develops not more than a faint odor of petroleum when heated.

Solubility
Insoluble in water and in alcohol, soluble in volatile oils. Miscible with most fixed oils but not with castor oil.

Specific Gravity
Between 0.818 and 0.880 0.8255

Acidity/Alkalinity
Not more than 0.1 ml of 0.1 M sodium hydroxide is required.

Viscosity
Not more than 33.5 centistokes (between 11.0 – 14.0 cSt).

Neutrality
The alcohol remains neutral to litmus.

Readily carbonisable substance
The oil may turn hazy but should remain colorless, or shows a slight pink or yellow color and the acid should not become darker than the standard solution.

Limit of polynuclear compounds
The absorbance of sample solution at any wavelength in the range 260 to 350 nm should not be more than one third of the absorbance of standard solution at 275 nm.

Solid Paraffin
Conforms

Sulphur Compounds
The mixture remains colorless.