| Origin | China | |
| CAS No. | 57-55-6 | |
Propylene Glycol Industrial grade
Molecular Weight: 76.095
|
TESTS
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INDUSTRIAL GRADE SPECIFICATIONS |
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Description/
Appearance
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Colorless, viscous, clear hygroscopic liquid
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Identification
|
IR test
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Assay (Purity)
|
99% min
|
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Specific gravity
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1.037 1.039 g/cm3 at 25 °C
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|
Index of refraction
|
1.431 1.433 nD20
|
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Acidity
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≤ 0.20 ml of 0.10 N NaOH
|
|
sas Cl-
|
10ppm
|
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Water/Moisture
|
0.2% max
|
|
Residue on ignition
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0.01%
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Distillation range
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180-190
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Color
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15 APHA
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Heavy metals
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6 ppm max
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Oxidizing substances
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Not required
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Reducing substances
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Not required
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2. Propylene Glycol USP grade
Molecular Weight: 76.095
|
TESTS
|
USP SPECIFICATIONS |
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Description/
Appearance
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Colorless, viscous, clear hygroscopic liquid without odor
|
|
Identification
|
IR test
|
|
Assay (Purity)
|
99.5% min
|
|
Specific gravity
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1.035 1.037 g/cm3 at 25 °C
|
|
Index of refraction
|
1.431 1.433 nD20
|
|
Acidity
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≤ 0.20 ml of 0.10 N NaOH
|
|
Water/Moisture
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0.2% max
|
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Residue on ignition
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4.0 mg max
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Chloride
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5 ppm max
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Heavy metals(as Pb)
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5 ppm max
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sas SO42-
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10 ppm max
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Oxidizing substances
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Not required
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Arsenic
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5 ppm max
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Reducing substances
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Not required
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|
Organic volatile impurities
|
|
Uses:It is the taw material of unsaturated polyester resin ,for making plasticizer,surface-active agent,demulsifying,dehyarating agent hot carrier,antifreeze.Cosmetic industry :It can be used as humectant,emollient,etc.Tobacco industry:It can be used as tobacco flavor,softening agent,preservative,etc.Food industry:It can be used as edible pigment,an antiadhesive,etc