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Pharmaceutical Glycerin

Standard:CP 2000 volume 2, Technical index:

Item

Index

[ Properties ]

 

Appearance

colorless clear syrup-like liquid , Aq. solution (1→10) is neutral reaction

Relative Density

In 25°C, is not less than 1.2569

[ Identification ]

 

(1)

positive reaction

(2)

its infrared absorption spectrum is accordance with the standard sample.

[ Check ]

 

Color

is not darker than the standard

Chloride

is not darker than the standard (0.0015%)

Sulfate

is not darker than the standard (0.002%)

Fatty acid and ester

The consumption of NaOH solution (0.1mol/l)is not more than 4.0ml

Acrolein, dextrose & ammonium salt

no yellow or with ammonia odor

Readily carbonizable substance

is not darker than the standard

Residue on ignition

not more than 2mg

Iron salts

is not darker than the standard (0.0002%)

Heavy metals

not more than ppm

[ Assay test ]

C3H8O3 is not less than 95.0%

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