Paraffins (petroleum), normal C>10
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Paraffins (petroleum), normal C>10
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CAS No:
64771-71-7
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Chemical Name:
Paraffins (petroleum), normal C>10
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Synonyms:
Paraffins (petroleum),normal C>10;Normal paraffins (petroleum)
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CAS No:
Description
Light mineral oil is a transparent, colorless liquid, without fluorescence in daylight. It is practically tasteless and odorless when cold, and has a faint odor when heated. The USP32–NF27 specifies that light mineral oil may contain a suitable stabilizer.
Characteristics
white light oil
0.85 g/mL at 20 °C
n20/D 1.467(lit.)
Light mineral oil undergoes oxidation when exposed to heat and light. Oxidation begins with the formation of peroxides, exhibiting an ‘induction period’. Under typical storage conditions, the induction period may take months or years. However, once a trace of peroxide is formed, further oxidation is autocatalytic and proceeds very rapidly. Oxidation results in the formation of aldehydes and organic acids, which impart taste and odor. The USP32–NF27 permits the addition of suitable stabilizers t
Paraffins (petroleum), normal C>10 Use and Manufacturing
Light mineral oil is used in applications similar to those of mineral
oil.It is used primarily as an excipient in topical pharmaceutical
formulations where its emollient properties are exploited in
ointment bases. It is also used in ophthalmic
formulations. Light mineral oil is additionally used in oil-inwater
and polyethlylene glycol/glycerol emulsions; as a solvent
and lubricant in capsules and tablets; as a solvent and penetration
enhancer in transdermal preparations;and as the oily medium
used in the microencapsulation of many drugs.
Light mineral oil is also used in cosmetics and certain food
products.
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