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Colorless Liquid 25190 06 1 PTMEG 250 Polyether Polyol

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Colorless Liquid 25190 06 1 PTMEG 250 Polyether Polyol

Brand Name : EXCEEDCHEM

Model Number : PTMEG

Certification : ISO9001:2008

Place of Origin : China

MOQ : 1mt

Price : FOB Qingdao usd3.0/kg

Payment Terms : L/C, T/T

Supply Ability : 3000mt/month

Delivery Time : 5-8 work days

Packaging Details : 20kg/drum; 200kg/drum

Molecular weight : 250

Color : colorless liquid

Application : PU elastomer etc

CAS : 25190-06-1

Molecular structure : HO[CH2CH2CH2CH2O]H

Raw material : THF

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PTMEG((Polytetramethylene Ether Glycol)) 250

1. Description

As a compound of THF, it is transparent liquid with viscosity at a temperature higher than ambient temperature. The PTMEG is mainly used as a raw material of Polyurethane, Elastomer, Polyester Elastomer and Spandex fabric. We have a standard range of PTMEG products such as 250, 650, 1000, 1800, 2000, 3000 etc. in terms of molecular weight, whilst a customized product between 250 and 3000 can also possibly be produced based on a special order.


2. Synonyms
Poly(Oxytetramethylene) Glycol, Polytetramethylene Oxide(PTMO), Polybutylene Glycol, Polytetrahydrofuran(PTHF)

3. Properties

Item PTMEG-250 PTMEG-650 PTMEG-1000 PTMEG-1400 PTMEG-1800 PTMEG-2000 PTMEG-3000
Boiling point 250℃ or higher 250℃ or higher 250℃ or higher 250℃ or higher 250℃ or higher 250℃ or higher 250℃ or higher
Flash point 260℃ or higher 260℃ or higher 260℃ or higher 260℃ or higher 260℃ or higher 260℃ or higher 260℃ or higher
Melting point -8 ∼ -4℃ 18 ∼ 20℃ 25 ~ 27℃ 27 ~ 29℃ 29 ~ 30℃ 29 ~ 31℃ 31 ~ 33℃
Specific gravity 0.991
(40/4℃)		 0.984
(40/4℃)		 0.981
(40/4℃)		 0.978
(40/4℃)		 0.976
(40/4℃)		 0.974
(40/4℃)		 0.970
(40/4℃)

4. Specifications

Item Unit PTMEG-250 PTMEG-650 PTMEG-1000 PTMEG-1400 PTMEG-1800 PTMEG-2000 PTMEG-3000
Appearance - Transparent liquid at high temperature or white waxy solid at low temperature
Molecular weight g/mol 210±25 650±25 1000±25 1400±50 1800±50 2000±50 3000±100
Hydroxyl No. mgKOH/g 477.4 ~
606.5		 166.2~
179.5		 109.5~
115.1		 77.4~
83.1		 60.7~
64.1		 54.7~
57.5		 36.2~
38.7
Acid No. mgKOH/g Max 0.05 Max 0.05 Max 0.05 Max 0.05 Max 0.05 Max 0.05 Max 0.05
Water wt ppm Max 300 Max 150 Max 150 Max 150 Max 150 Max 150 Max 150
Color APHA Max 40 Max 40 Max 40 Max 40 Max 40 Max 40 Max 40
BHT wt ppm 220±50 220±50 220±50 220±50 220±50 220±50 220±50

5. Applications

  • Polyurethane Fiber
  • Polyurethane Elastomer
  • Synthetic Leather
  • Paint, Coating Agent
  • Adhesives, Sealants
  • Engineering Plastic

Colorless Liquid 25190 06 1 PTMEG 250 Polyether Polyol


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