Propylene Glycol
Name: 1, 2-Propylene glycol
Molecular formula: C3H8O2
Relative Molecular weight: 76.09
CAS No.: 57-55-6
Propylene Glycol Technical grade
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Item
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Index
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Color, (APHA)
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≤10
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Content, %
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≥99.0
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Moisture, %
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≤0.2
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Specific gravity (20/20)
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1.035-1.039
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Free acid, (As CH3OOH), ppm
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≤75
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Residue, ppm
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≤80
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Distillation rang＞95%,(Vol)
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184-190
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Index of retraction(n20D)
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1.433-1.435
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Propylene Glycol Pharmaceutical grade
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Item
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Index
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Color Tone (APHA)
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10 max
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Water,%
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0.2 max
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Specific gravity (20/25 °C)
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1.0350~1.0410
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Refractive index(25°C)
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1.4307~1.4317
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Distillation range (L), °C
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184.0~189.0
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Distillation range (U),°C
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184.0~189.0
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Distillation volume, Vol%
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95 min
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Identification
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passed
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Acidity, ml
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0.20 max
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Chloride, %
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0.007 max
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Sulfate, %
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0.006 max
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Heavy metals, ppm
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5 max
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Residue on ignition, %
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0.07 max
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Organic Volatile impurity Chloroform, µg/g
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60 max
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Organic Volatile impurity 1.4 dioxane, µg/g
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380 max
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Organic Voltile impurity methylene chloride,µg/g
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600 max
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Organic Voltile impurity trichloroethylene, µg/g
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80max
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Assay, GLC%
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99.5 min
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Packed in galvanized iron drums, net weight 200Kg/drum. Or packed in IBC drums, flexi bag or according to the clients' requirement
Storage and transportation:
Propylene Glycol is combustible. If coming into contact with oxidization it will burn. It should be stored in a cool and windy special warehouse far from fire and transported as a combustible chemical product.
Storage and transportation:
Propylene Glycol is combustible. If coming into contact with oxidization it will burn. It should be stored in a cool and windy special warehouse far from fire and transported as a combustible chemical product.