PPG 2000

POLYPROPYLENE GLYCOL WITH AN AVRAGE MOLECULAR WEIGHT 2000

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PPG 2000 is a polypropylene glycol with an average molecular weight of 2000. It is a 100% active, nearly colorless, somewhat viscous liquid I.C.C polypropylene glycols are compatible with a wide range of other liquids, and at 77°F, are miscible in all proportions with most organic aromatic compounds, halogenated hydrocarbons, alcohols, aldehydes and acids. In addition, they show good solubility with some animal and vegetable oils, and modified alkyd resins. PPG 2000, as this product is also known, is a clear, viscous liquid at room temperature. It has a higher pour point and, unlike the lower molecular weight PPGs, is partially soluble in water at 25 °C. It loses its water solubility at higher temperatures. Like all polypropylene glycols, Polyglycol 2000 is soluble in all proportions with any organic solids and liquids, the main exception being long chain aliphatic hydrocarbons. Polyglycol 2000 possesses excellent lubricity and has a low vapour pressure. Under extreme heating conditions it does not form coke not does it form a varnish. Decomposition products are low boiling products that are either lost as volatiles or soluble in the polypropylene glycol.

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BENEFITS

·         Compatible with a wide range of other liquids

·         Free of Suspended matter

SAFETY AND MSDS

Safe Use and Handling

 

I.C.C polypropylene glycols are relatively easy to store and handle. They can be stored in bulk in steel tanks, which should be padded with nitrogen or any other inert gas to prevent air from entering the tank. If slight iron pickup and colour changes cannot be tolerated then the storage tanks should be constructed from stainless steel.

To ease the handling of polypropylene glycols somewhat, higher storage temperatures should be considered to keep the viscosity of the polyglycols within limits suitable for the pumping equipment available. The maximum storage temperature should not exceed 40°C to avoid the risk of product degradation. Pipelines may also require insulation and/or tracing to maintain suitable product temperatures.

Although PPGs have very low pour points, especially polyglycols 2000 and 4000 become very viscous at low temperatures. Consequently it is recommended that they be stored in tanks which are well insulated and heated. Externally located heating devices are preferable to internally sited ones. With external heating the risk of accelerating product deterioration is greatly reduced.

Similarly drums should be stored under cover or preferably inside a warehouse, to maintain the temperature of the polyglycol at a level which allows for easy discharge.

The shelf life of properly stored bulk and unopened drums is, at least, 24 months.

 

Toxicological Information

Polyglycols 2000 and 4000 are considered to be low in acute oral toxicity, whereas polyglycols 400, 600, 1000 and 1200 are considered to be low to moderate in acute oral toxicity.

They cause no significant skin irritation or sensitization and are not reportedly absorbed in any appreciable amount. Direct contact with the eyes may cause slight temporary irritation, similar in character to that caused by mild soap. Consequently it is recommended that eye protection should be employed and viewed as the minimum level of safety equipment required when working with polypropylene glycols.

Please contact us for safety and regulatory details or the Material Safety Data Sheet (MSDS).

TECHNICAL DATA

Appearance at 25°C

Clear, viscous liquid

Active Substance (ca.)

100%

Specific gravity at 20°C

1.002

Flash point, °F

>212

Fire point, °F

>390

Specifications


Water, wt. % max

0.05

Color, APHA max

25

Suspended matter

Substantially free of

Acid no., mg. KOH/g., max

0.08

Hydroxyl no

54-58

pH in 10:6 IPA water

5.0-8.

Viscosity @ 100°F, cSt

150-175

APPLICATION

·         Brake Fluid formulations

·         Lubricating-oil and grease compounding

·         Rubber processing

·         Air-filter dust trapping

·         Foam inhibiting

·         PPG 2000 is suitable as an antifoam agent in latex formulations, paper and pulp processing, emulsion paints, sugar beet processing, fermentation vats in the manufacture of various products

·         its use as a cosmetic ingredient, a mould release agent, an intermediate for e.g. resin and as plasticizer

·         PPG 2000 can also be used as lubricant base, its intrinsic lubricity may be further enhanced by the use of additives

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