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Propylene Glycol

Name:Propylene Glycol  1,2-Propanediol
CAS No:57-55-6
Appearence:Colorless transparent Liquid

Purity: 99.5%min

The detailed specifications are as below:

Index

Pharmaceutical grade

Industrial excellent grade

Industrial first grade

Appearance

colorless transparent viscous liquid

colorless transparent viscous liquid

colorless transparent viscous liquid

Content

99.5 % min

99.5 % min

99.0% min

Chroma(platinum-cobalt)

10  max

10 max

16 max

Density (20/25 °C)

1.0350~1.4010

1.0350~1.4010

1.0350~1.4010

Refractive index(25°C)

1.4307~1.4317

1.431~1.435

1.426~1.435

Boiling range, IBP

184.0 °C min

184.0 °C min

183.0 °C min

Boiling range, DP

189.0 °C max

190.0 °C max

190.0 °C max

IR test

passed

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Moisture

0.2 wt% max

0.1 wt% max

0.2% max

Basicity

0.0020 wt% max

0.0020 wt%

0.01% max

Chloride

0.007 wt% max

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Sulfate

0.006 wt% max

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Heavy metal

5 ppm max

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Ignition residue

0.0070 wt% max

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Oxidizing substance

Not required

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Reduction material

Not required

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Organic volatiles -trichloromethane

60 ppm max

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Organic volatiles -dioxane

380 ppm max

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Organic volatiles - dichloromethane

600 ppm max

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Organic volatiles -trichloroethylene

80 ppm max

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