POLYETHYLENE GLYCOL

PRODUCT IDENTIFICATION
CAS NO. 25322-68-3

POLYETHYLENE GLYCOL 
EINECS NO. 203-473-3
FORMULA H(OCH2CH2)nOH
MOL WT.

 

H.S. CODE

 2909.49
TOXICITY  
SYNONYMS PEG; Macrogol; Polyoxyethlene; Aquaffin; Nycoline;
alpha-hydro-omega-hydroxypoly(oxy-1,2-ethanediyl); polyethylene glycols; Poly Ethylene Oxide; Polyoxyethylene; Polyglycol; 1,2-ethanediol Ehoxylated; Polyoxyethylene ether; Polyoxyethylene; Poly(ethylene glycol); 
DERIVATION

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE clear to white semi-solid
MELTING POINT  
BOILING POINT  
SPECIFIC GRAVITY  
SOLUBILITY IN WATER Soluble
pH  
VAPOR DENSITY  

AUTOIGNITION

 

NFPA RATINGS

 Health: 1; Flammability: 0; Reactivity: 0

REFRACTIVE INDEX

  
FLASH POINT  
STABILITY Stable under ordinary conditions. Hygroscopic.

GENERAL DESCRIPTION & APPLICATIONS
Polyethylene glycol is a condensation polymers of ethylene oxide and water with the general formula H(OCH2CH2)nOH, where n is the average number of repeating oxyethylene groups typically from 4 to about 180. The low molecular weight members from n=2 to n=4 are diethylene glycol, triethylene glycol and tetraethylene glycol respectively, which are produced as pure compounds. The low molecular weight compounds upto 700 are colorless, odorless viscous liquids with a freezing point from -10 C (diethylene gycol), while polymerized compounds with higher molecular weight than 1,000 are waxlike solids with melting point upto 67 C for n 180. The abbreviation (PEG) is termed in combination with a numeric suffix which indicates the average molecular weights. One common feature of PEG appears to be the water-soluble. It is soluble also in many organic solvents including aromatic hydrocarbons (not aliphatics).  They are used to make emulsifying agents and detergents, and as plasticizers, humectants, and water-soluble textile lubricants. The wide range of chain lengths provide identical physical and chemical properties for the proper application selections directly or indirectly in the field of; 
  • Alkyd and polyester resin preparation  to enhance water dispersability and water-based coatings.
  • Antidusting agent in agricultural formulations
  • Brightening effect and adhesion enhance in electroplating and electroplating process.
  • Cleaners, detergents and soaps with low volatility and low toxicity solvent properties.
  • Coupling agent, humectant, solvent and lubricant in cosmetics and personal care bases.
  • Dimensional stabilizer in wood working operations
  • Dye carrier in paints and inks
  • Heat transfer fluid formulation and defoamer formulations.
  • Low volatilie, water soluble, and noncorrosive lubricant without staining residue in food and package process.
  • Mold release agent and lubricant in fabricating elastomers
  • Paper coating for antisticking, color stabilizing, good gloss and free flow in calendering operations.
  • Plasticizer to increase lubricity and to impart a humectant property in  ceramic mass, adhesives and binders.
  • Softener and antistatic agent for textiles
  • Soldering fluxes with good spreading property.

Polyethylene glycol is non-toxic, odorless, neutral, lubricating, nonvolatile and nonirritating and is used in a variety of pharmaceuticals and in medications as a solven, dispensing agent, ointment and suppository bases, vehicle, and tablet excipient.

SALES SPECIFICATION

PEG-200
MOL WT.

190 - 210

APPEARANCE

 clear liquid

COLOR, APHA

10 max

MOISTURE

0.2% max
HYDROXYL VALUE

535 - 590 (mg KOH/g)

pH

5 - 7
SPECIFIC GRAVITY

1.12 - 1.13

DIOXANE

1ppm max
VISCOSITY

50 cP at 25 C
POUR POINT

-45 C

PEG-300
MOL WT.

280 - 320

APPEARANCE

 clear liquid

COLOR, APHA

10 max

MOISTURE

0.2% max
HYDROXYL VALUE

355 - 395 (mg KOH/g)

pH

5 - 7
SPECIFIC GRAVITY

1.12 - 1.13
DIOXANE

1ppm max
VISCOSITY

70 cP at 25 C
POUR POINT

-15 C

PEG-400
MOL WT.

380 - 420

APPEARANCE

 clear liquid

COLOR, APHA

10 max

MOISTURE

0.2% max
HYDROXYL VALUE

265 - 295 (mg KOH/g)

pH

5 - 7
SPECIFIC GRAVITY

1.12 - 1.13
DIOXANE

1ppm max
VISCOSITY

90 cP at 25 C
POUR POINT

4 C

PEG-600
MOL WT.

570 - 630

APPEARANCE

 clear liquid

COLOR, APHA

10 max

MOISTURE

0.2% max
HYDROXYL VALUE

175 - 195 (mg KOH/g)

pH

5 - 7
SPECIFIC GRAVITY

1.12 - 1.13
DIOXANE

1ppm max
VISCOSITY

135 cP at 25 C
POUR POINT

17 C

PEG-1000
MOL WT.

950 - 1050

APPEARANCE

white paste

COLOR, APHA

10 max (50% aq. sol.)

MOISTURE

0.1% max
HYDROXYL VALUE

105 - 120 (mg KOH/g)

pH

5 - 7
SPECIFIC GRAVITY

1.08 - 1.09 (50% aq. sol.)
DIOXANE

1ppm max
VISCOSITY

20 cp (50% aq. sol.)
POUR POINT

25 C

PEG-2000
MOL WT.

1800 - 2200

APPEARANCE

white flake

COLOR, APHA

10 max (50% aq. sol.)

MOISTURE

0.1% max
HYDROXYL VALUE

50 - 65 (mg KOH/g)
SPECIFIC GRAVITY

1.08 - 1.09 (50% aq. sol.)

pH

5 - 7
DIOXANE

1ppm max
VISCOSITY

40 cp (50% aq. sol.)
POUR POINT

50 C

PEG-4000
MOL WT.

3500 - 4500

APPEARANCE

white flake

COLOR, APHA

10 max (50% aq. sol.)

MOISTURE

0.1% max
HYDROXYL VALUE

25 - 35 (mg KOH/g)
SPECIFIC GRAVITY

1.08 - 1.09 (50% aq. sol.)

pH

5 - 7
DIOXANE

1ppm max
VISCOSITY

100 cp (50% aq. sol.)

PEG-6000
MOL WT.

5000 - 7000

APPEARANCE

white flake

COLOR, APHA

10 max (50% aq. sol.)

MOISTURE

0.1% max
HYDROXYL VALUE

25 - 35 (mg KOH/g)
SPECIFIC GRAVITY

1.08 - 1.09 (50% aq. sol.)

pH

5 - 7
DIOXANE

1ppm max
VISCOSITY

100 cp (50% aq. sol.)

TRANSPORTATION
PACKING 200 liter drum
HAZARD CLASS Not regulated
UN NO.  
OTHER INFORMATION
Hazard Symbols: n/a, Risk Phrases: n/a, Safety Phrases: 24/25