BGC > Product Search > Propylene glycol

Color, (APHA)	10 max
Water %	0.2max
Specific gravity (20/25℃ )	1.0350~1.0370
Refractive index (25℃ )	1.4307~1.4317
Distillation range (L), ℃	184.0~189.0
Distillation range (U), ℃	184.0~189.0
Distillation volume, Vol %	95min
Identification	passed
Acidity, ml	0.20 max
Chloride, %	0.007 max
Sulfate, %	0.006 max
Heavy metals, ppm	5 max
Residue on ignition %	0.007 max
Organic Volatile impurity Chloroform, µg/g	60 max
Organic Volatile impurity 1.4 dioxane, µg/g	380 max
Organic Volatile impurity methylene chloride, µg/g	600 max
Organic Volatile impurity trichloroethylene, µg/g	80 max
Assay, GLC %	99.5 min

Color, (APHA)	10 max
Water %	0.2max
Specific gravity (20/25℃ )	1.0350~1.0370
Refractive index (25℃ )	1.4307~1.4317
Distillation range (L), ℃	184.0~189.0
Distillation range (U), ℃	184.0~189.0
Distillation volume, Vol %	95min
Identification	passed
Acidity, ml	0.20 max
Chloride, %	0.007 max
Sulfate, %	0.006 max
Heavy metals, ppm	5 max
Residue on ignition %	0.007 max
Organic Volatile impurity Chloroform, µg/g	60 max
Organic Volatile impurity 1.4 dioxane, µg/g	380 max
Organic Volatile impurity methylene chloride, µg/g	600 max
Organic Volatile impurity trichloroethylene, µg/g	80 max
Assay, GLC %	99.5 min

Color, (APHA)	10 max
Water %	0.2max
Specific gravity (20/25℃ )	1.0350~1.0370
Refractive index (25℃ )	1.4307~1.4317
Distillation range (L), ℃	184.0~189.0
Distillation range (U), ℃	184.0~189.0
Distillation volume, Vol %	95min
Identification	passed
Acidity, ml	0.20 max
Chloride, %	0.007 max
Sulfate, %	0.006 max
Heavy metals, ppm	5 max
Residue on ignition %	0.007 max
Organic Volatile impurity Chloroform, µg/g	60 max
Organic Volatile impurity 1.4 dioxane, µg/g	380 max
Organic Volatile impurity methylene chloride, µg/g	600 max
Organic Volatile impurity trichloroethylene, µg/g	80 max
Assay, GLC %	99.5 min

Color, (APHA)	10 max
Water %	0.2max
Specific gravity (20/25℃ )	1.0350~1.0370
Refractive index (25℃ )	1.4307~1.4317
Distillation range (L), ℃	184.0~189.0
Distillation range (U), ℃	184.0~189.0
Distillation volume, Vol %	95min
Identification	passed
Acidity, ml	0.20 max
Chloride, %	0.007 max
Sulfate, %	0.006 max
Heavy metals, ppm	5 max
Residue on ignition %	0.007 max
Organic Volatile impurity Chloroform, µg/g	60 max
Organic Volatile impurity 1.4 dioxane, µg/g	380 max
Organic Volatile impurity methylene chloride, µg/g	600 max
Organic Volatile impurity trichloroethylene, µg/g	80 max
Assay, GLC %	99.5 min

Molecular Formula: C3H8O2
Molecular Weight: 76.09

Molecular Formula: C3H8O2
Molecular Weight: 76.09

Molecular Formula: C3H8O2
Molecular Weight: 76.09

Molecular Formula: C3H8O2
Molecular Weight: 76.09

Molecular Formula: C3H8O2
Molecular Weight: 76.09

Molecular Formula: C3H8O2
Molecular Weight: 76.09

Molecular Formula: C3H8O2
Molecular Weight: 76.09

Alternative name	Propylenglycol
Further description	Propylenglycolum
Monograph	Ph.Eur.9.0
Pharmaceutical status	free
INCI	Propylene Glycol
UEXDES	Chemicals liquid

EINECS : 200-338-0 | Formular : C3-H8-O2

Mol weight : 7609
Purity (BY GC) : 99-100
FEMA : 2940
Boiling Point : 188.2°C
Flash Point : > 200°F (93°C)

Documentation info :
TSCA Listed: Yes ||| GMO: No ||| Listed on CA Prop. 65: No ||| Food Grade: Yes ||| US Natural: No ||| EU Natural: No

Category statement : Flavor Library, Synthetic Aroma Chemicals

Appearance	Colorless,Viscous, Transparent liquid
MPG content(Wt%)	99.90min
Water(ppm)	1000max
Color, Pt-Co(APHA)	10
Acidity(%)	0.01max
IBP(DegC)	183min
DP(DegC)	189max
Iron(ppm)	0.5max
Sulfate(ppm)	10max
Chloride(ppm)	2max
Heavy Metals ( Pb)(ppm)	5max
Residue on Ignition(ppm)	20max
Specific Gravity(20/20degC)	1.035-1.040
Refractive Index(nD20)	1.431-1.435

Appearance	Colorless,Viscous, Transparent liquid
MPG content(Wt%)	99.90min
Water(ppm)	1000max
Color, Pt-Co(APHA)	10
Acidity(%)	0.01max
IBP(DegC)	183min
DP(DegC)	189max
Iron(ppm)	0.5max
Sulfate(ppm)	10max
Chloride(ppm)	2max
Heavy Metals ( Pb)(ppm)	5max
Residue on Ignition(ppm)	20max
Specific Gravity(20/20degC)	1.035-1.040
Refractive Index(nD20)	1.431-1.435

Appearance	Colorless,Viscous, Transparent liquid
MPG content(Wt%)	99.90min
Water(ppm)	1000max
Color, Pt-Co(APHA)	10
Acidity(%)	0.01max
IBP(DegC)	183min
DP(DegC)	189max
Iron(ppm)	0.5max
Sulfate(ppm)	10max
Chloride(ppm)	2max
Heavy Metals ( Pb)(ppm)	5max
Residue on Ignition(ppm)	20max
Specific Gravity(20/20degC)	1.035-1.040
Refractive Index(nD20)	1.431-1.435

Appearance	Colorless,Viscous, Transparent liquid
MPG content(Wt%)	99.90min
Water(ppm)	1000max
Color, Pt-Co(APHA)	10
Acidity(%)	0.01max
IBP(DegC)	183min
DP(DegC)	189max
Iron(ppm)	0.5max
Sulfate(ppm)	10max
Chloride(ppm)	2max
Heavy Metals ( Pb)(ppm)	5max
Residue on Ignition(ppm)	20max
Specific Gravity(20/20degC)	1.035-1.040
Refractive Index(nD20)	1.431-1.435

Appearance	Colorless,Viscous, Transparent liquid
MPG content(Wt%)	99.90min
Water(ppm)	1000max
Color, Pt-Co(APHA)	10
Acidity(%)	0.01max
IBP(DegC)	183min
DP(DegC)	189max
Iron(ppm)	0.5max
Sulfate(ppm)	10max
Chloride(ppm)	2max
Heavy Metals ( Pb)(ppm)	5max
Residue on Ignition(ppm)	20max
Specific Gravity(20/20degC)	1.035-1.040
Refractive Index(nD20)	1.431-1.435

Appearance	Colorless,Viscous, Transparent liquid
MPG content(Wt%)	99.90min
Water(ppm)	1000max
Color, Pt-Co(APHA)	10
Acidity(%)	0.01max
IBP(DegC)	183min
DP(DegC)	189max
Iron(ppm)	0.5max
Sulfate(ppm)	10max
Chloride(ppm)	2max
Heavy Metals ( Pb)(ppm)	5max
Residue on Ignition(ppm)	20max
Specific Gravity(20/20degC)	1.035-1.040
Refractive Index(nD20)	1.431-1.435

Appearance	Colorless,Viscous, Transparent liquid
MPG content(Wt%)	99.90min
Water(ppm)	1000max
Color, Pt-Co(APHA)	10
Acidity(%)	0.01max
IBP(DegC)	183min
DP(DegC)	189max
Iron(ppm)	0.5max
Sulfate(ppm)	10max
Chloride(ppm)	2max
Heavy Metals ( Pb)(ppm)	5max
Residue on Ignition(ppm)	20max
Specific Gravity(20/20degC)	1.035-1.040
Refractive Index(nD20)	1.431-1.435

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.

Propylene Glycol is colorless and transparent liquid. The melting Point is 60℃. Boiling Point is195.1°C at 760mmHg. Flash Point is 85.7°C. Water Solubility is miscible.
PG is the main raw material of unsaturated polyester, epoxy resin, polyurethane resin. In food, medicine and cosmetics industry is widely used as a hygroscopic agent ,antifreeze, lubricants and solvents. In the food industry it is a good solvent, spices and pigments. In medicine it is in the production of various types of ointment, gel solvent, softener and excipients, etc. Propylene glycol and various spices has good solubility which is also used as a solvent and cosmetics, etc. softener can also be used as a tobacco humidification agent and moisturizing agent, fungicide, food processing equipment, lubricating oil and food labeling ink solvent. Propylene glycol aqueous solution is effective antifreeze agent, it is also a kind of plasticizer, surface active agent, food emulsifying agent and demulsifier, fruit ripening agent, preservative, hygroscopic agent, lubricant, antifreeze raw materials.