Polyethylene Glycol
Ingredient: the polymer of ethylene
glycol and ethylene oxide
Other Name: carbon wax, PEG
Structural Formula: CH2(OH)-(CH2CH2O)n
-CH2OH
Technical Index:
Model No. |
Appearance |
Average
Molecular Weight |
Freezing
Point, ¡æ |
PH
|
200 |
colorless
viscous liquid |
190-210 |
<0 |
5.5-7.5 |
400 |
380-400 |
4-10 |
600 |
570-630 |
20-25 |
1000 |
white paste |
950-1050 |
38-41 |
1500 |
white
waxy or flaky solid |
1200-1600 |
43-46 |
2000 |
1800-2200 |
48-50 |
3000 |
2700-3300 |
51-53 |
4000 |
3100-3700 |
53-54 |
6000 |
5000-7000 |
54-60 |
Properties and Uses:
Polyethylene glycol series products are usually soluble in the water
and many kinds of organic solvents, insoluble in the fatty hydrocarbon,
benzene and glycol. They don't hydrolyze and deteriorate in quality,
and have wide solubility range and excellent compatibility, excellent
stability, lubricating property, film-forming property, plasticity
and dispersion. They are nonionic polymer with low toxicity and
no pungency.
Polyethylene glycol have excellent properties and their molecular
weight is adjustable, therefore, they are widely used in many fields
such as plastic, rubber, pharmaceutical, food, cosmetic, coating,
ink, adhesive, paper making, textile, oil exploration and the process
of metal, wood, leather and ceramics, photographic and packing material,
etc.
Applications:
Polyethylene glycol are mainly used in two kinds of modes: one mode
is that PEG are contained in the final products, for example: used
in unguent, ointment, lotion, suppository and tablet in pharmaceutical
industry; used in toothpaste, hair cream, deodorant, cleaning cream
in cosmetic industry; used in press-polished paper in paper making
industry; and used in nylon fibre, celluloid film, adhesive, detergent,
flux, varnish and photographic developer, etc. Another mode is that
PEG provide lubricating property for many kinds of products, for
example: used as shaping lubricant for metals, ceramic tile and
porcelain products; used as lubricant in silking, textile fibre,
tyre manufacture and medical surgical suture; used as demoulding
agent in the formation of latex foam.
PEG200: used as the medium and heat carrier in organic synthesis;
as humectant, solubilizer of inorganic salts and viscosity regulator
in daily chemical industry; as softening agent and antistatic agent
in textile industry, and as wetting agent in paper making and pesticide
industry.
PEG400, 600: used as the substrate in medicine and cosmetic; as
lubricant and wetting agent in rubber and textile industry. PEG600
is used as wetting agent in wood industry, to improve grinding effect
and strengthen the lustre of metal surface when used in electrolyte
in metal process.
PEG1000-1500: used as substrate, lubricant and softening agent in
pharmaceutical, textile and cosmetic industry; as dispersant to
perfect the water dispersibility and flexility of resin in coating
industry (the use level is 10-30%); to improve the solvability of
dyes and reduce the volatility in ink; also used in stencil paper
and stamp pad ink; as well as used in ball pen ink to regulate the
viscosity of ink and as dispersant in rubber industry.
PEG2000-3000: used as film-casting agent in metal process; as lubricant
and cutting solution in metal wiredrawing, impact extrusion or moulding;
as cooling polishing agent and solder; as lubricant in paper making
industry.
PEG4000-6000: used as substrate in pharmaceutical and cosmetic industry
to regulate the viscosity and melting point; as lubricant and coolant
in rubber and metal process industry; as dispersant and emulsifier
in pesticide and pigment industry; and as antistatic agent and lubricant
in textile industry.
Packing and Storage:
For PEG 200-600, 200kg/iron barrel; for PEG 1000,
10kg/plastic barrel; for PEG 1500-6000, 10kg/plastic barrel or 25kg/woven
bag lined with plastic film. Stored in dry, shady and cool place;
keep away from fire and prevent them from contacting with heat and
oxides.
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