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| Categories | 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 |
| Company Info. |
| Qingdao Exceed Fine Chemicals Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
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

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