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Dipropylene Glycol，DPG，Dipropylene Glycol (DPG) Fragrance Grade
Products Specification
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Product Name: |
Dipropylene Glycol (DPG) Fragrance Grade |
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CAS NO.: |
25265-71-8 |
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Items |
Unit |
Standards |
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Appearance |
- |
Colorless, transparent,viscous liquid free of visible mechanical impurities |
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Odor |
- |
Passed |
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Color |
Pt-Co |
≤10 |
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Moisture |
w % |
≤0.10 |
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PG |
w % |
≤0.20 |
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TPG |
w % |
≤0.10 |
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Specific Gravity (d4020） |
- |
1.020~1.025 |
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Acidity |
w % |
≤0.003 |
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Assay |
w % |
≥99.70 |
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Fe |
mg/kg |
≤1 |
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Chloride |
mg/kg |
≤1 |
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Residue on Ignition |
w % |
≤0.003 |
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Heavy metals |
ppm |
≤20 |
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As |
ppm |
≤2 |
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Conclusion: |
The Product complies with standard. |
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Package: |
210kg drum. |
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Storage |
Store in cool, dry and clean places. |
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Product introduction
1. Basic Properties
Chemical Name: Dipropylene Glycol (DPG)
Chemical Formula: C₆H₁₄O₃
Structure: Composed of two propylene glycol molecules linked by an ether bond (-O-), with multiple isomers (e.g., 1,1'-oxybis-2-propanol, 1,2'-oxybis-2-propanol).
Physical Properties: Colorless, slightly viscous, hygroscopic liquid, soluble in water and organic solvents (e.g., ethanol, acetone).
Chemical Name: Dipropylene Glycol (DPG)
Chemical Formula: C₆H₁₄O₃
Structure: Composed of two propylene glycol molecules linked by an ether bond (-O-), with multiple isomers (e.g., 1,1'-oxybis-2-propanol, 1,2'-oxybis-2-propanol).
Physical Properties: Colorless, slightly viscous, hygroscopic liquid, soluble in water and organic solvents (e.g., ethanol, acetone).
2. Primary Applications
Cosmetics & Personal Care:
Acts as a humectant, solvent, and carrier in perfumes, lotions, sunscreens, etc.
Used as an alternative to propylene glycol (PG) or glycerin to reduce greasiness in formulations.
Industrial Uses:
Solvent: For inks, coatings, and cleaning agents.
Plasticizer: Enhances flexibility in plastics and rubber.
Antifreeze: Stabilizes fluids in low-temperature environments.
Food & Pharmaceuticals:
Food additive (regulated) for dissolving flavors or colorants.
Pharmaceutical carrier/excipient (e.g., oral liquids, topical medications).
Acts as a humectant, solvent, and carrier in perfumes, lotions, sunscreens, etc.
Used as an alternative to propylene glycol (PG) or glycerin to reduce greasiness in formulations.
Industrial Uses:
Solvent: For inks, coatings, and cleaning agents.
Plasticizer: Enhances flexibility in plastics and rubber.
Antifreeze: Stabilizes fluids in low-temperature environments.
Food & Pharmaceuticals:
Food additive (regulated) for dissolving flavors or colorants.
Pharmaceutical carrier/excipient (e.g., oral liquids, topical medications).
3. Safety & Toxicity
Low Toxicity: Safer than ethylene glycol (EG), with minimal skin/eye irritation.
Metabolism: Metabolized into lactic acid and pyruvate, excreted via urine.
Precautions: Avoid prolonged high-concentration exposure (may cause mild skin dryness).
High-purity (pharmaceutical-grade) products required for food/medical use.
Metabolism: Metabolized into lactic acid and pyruvate, excreted via urine.
Precautions: Avoid prolonged high-concentration exposure (may cause mild skin dryness).
High-purity (pharmaceutical-grade) products required for food/medical use.
4. Comparison with Similar Compounds
Propylene Glycol (PG): Single-molecule structure (C₃H₈O₂), lower viscosity, more common in food/pharma.
Ethylene Glycol (EG): Highly toxic, mainly for industrial antifreeze; unsuitable for cosmetics/food.
Ethylene Glycol (EG): Highly toxic, mainly for industrial antifreeze; unsuitable for cosmetics/food.
5. Market & Production
Production Methods: Hydration of propylene oxide or condensation of propylene glycol.
6. Environmental & Regulatory Compliance
Biodegradable: Broken down by microorganisms in the environment.
Regulations: Complies with U.S. FDA (21 CFR), EU EC/1223/2009 (cosmetics), etc.
6. Environmental & Regulatory Compliance
Biodegradable: Broken down by microorganisms in the environment.
Regulations: Complies with U.S. FDA (21 CFR), EU EC/1223/2009 (cosmetics), etc.