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  • Propylene glycol CAS#57-55-6
  • Propylene glycol CAS#57-55-6
  • Propylene glycol CAS#57-55-6
  • Propylene glycol CAS#57-55-6
  • Propylene glycol CAS#57-55-6

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Propylene glycol CAS#57-55-6

Propylene glycol CAS#57-55-6

Basic Information

High Purity and Quality: Industrial-grade 1,2-propanediol has a purity of ≥99.5%, ensuring reliable performance for industrial and laboratory applications.


Excellent Solubility: Fully miscible with water and most organic solvents, allowing versatile use in various formulations and chemical processes.


Wide Thermal Range and Stability: With a melting point of −59°C and a boiling point of 187°C, 1,2-propanediol is thermally stable and suitable for applications across a broad temperature range.


Safe and Chemically Stable: The compound is chemically stable under normal conditions, though it is incompatible with strong oxidizing agents, making it safe for typical industrial use.



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product description

Product Description of Propylene glycol CAS#57-55-6

1,2-Propanediol (Propylene Glycol, CAS 57-55-6) is industrial grade with purity ≥99.5%. It is a colorless viscous liquid, almost tasteless with a faint sweet odor. It has a melting point of −59°C, a boiling point of 187°C, a vapor pressure of 0.011 kPa at 20°C, and a relative density of 1.036 at 20°C. It is miscible with water in all ratios and compatible with most organic solvents. It remains stable under normal conditions and should be stored away from strong oxidizing agents.


Product Application of Propylene glycol CAS#57-55-6

Propylene glycol has similar uses to other glycol products. It serves as a major raw material for manufacturing unsaturated polyester, epoxy resin and polyurethane resin, which consumes around 45% of its total output. Unsaturated polyester is commonly applied in reinforced plastics and surface coatings. Thanks to its good viscosity, moisture retention and non-toxicity, propylene glycol is also widely used in food, pharmaceutical and cosmetic fields as a humectant, antifreeze, lubricant and solvent.


Product Information

Parameters


Melting point-60 °C (lit.)
Boiling point187 °C (lit.)
density1.036 g/mL at 25 °C (lit.)
vapor density2.62 (vs air)
vapor pressure0.08 mm Hg ( 20 °C)
refractive indexn20/D 1.432(lit.)
FEMA2940 | PROPYLENE GLYCOL
Fp225 °F
storage temp.Store at +5°C to +30°C.
solubilityChloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
pka14.49±0.20(Predicted)
formViscous Liquid
colorAPHA: ≤10
Specific Gravity1.038 (20/20℃)1.036～1.040
PH6-8 (100g/l, H2O, 20℃)
Odorat 100.00 %. odorless very slight alcoholic
Odor Typeodorless
Optical Rotation-0.11° (C=1.00g/100ml, CHCL3)
biological sourcesynthetic
explosive limit2.4-17.4%(V)
Water Solubilitymiscible
SensitiveHygroscopic
Merck147,855
JECFA Number925
BRN1340498
Dielectric constant32
InChIKeyDNIAPMSPPWPWGF-UHFFFAOYSA-N
LogP-0.92
Surface tension35.44mN/m at 298.15K
CAS DataBase Reference57-55-6(CAS DataBase Reference)
NIST Chemistry ReferencePropylene glycol(57-55-6)
EPA Substance Registry SystemPropylene glycol (57-55-6)


Safety Information


Safety Statements24/25
WGK Germany1
RTECSTY2000000
Autoignition Temperature779 °F
TSCAYes
HS Code29053200
Hazardous Substances Data57-55-6(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 19400 - 36000 mg/kg LD50 dermal Rabbit 20800 mg/kg


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