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Poly(tetrahydrofuran)

Product Name
Poly(tetrahydrofuran)
CAS No.
25190-06-1
Chemical Name
Poly(tetrahydrofuran)
Synonyms
ptmg;PTMEG 2000;ptmg1000;POLYTETRAHYDROFURAN;PTHF;PTMEG 1000;TETRAMETHYLENE ETHER GLYCOL 2000 POLYMER;ptmg2000;polymeg;PTMEG 250
CBNumber
CB6323066
Molecular Formula
(C4H8O)nH2O
Formula Weight
305.43
MOL File
25190-06-1.mol
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Poly(tetrahydrofuran) Property

Melting point:
33-36 °C
Boiling point:
>204
Density 
1 g/mL at 25 °C
vapor pressure 
<0.01 mm Hg ( 25 °C)
refractive index 
n20/D 1.465
Flash point:
>230 °F
storage temp. 
Store below +30°C.
solubility 
<10g/l
form 
Fused mass
Specific Gravity
0.961
PH
7 (H2O, 20℃)Aqueous solution
EPA Substance Registry System
Poly(oxy-1,4-butanediyl), .alpha.-hydro-.omega.-hydroxy- (25190-06-1)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
1
RTECS 
MD0916000
TSCA 
TSCA listed
HS Code 
3907 20 20
Toxicity
LD50 orally in Rabbit: > 5000 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.18402
Product name
Polytetrahydrofuran 1000
Purity
(stabilisedwith2,6-di-tert-butyl-4-methylphenol)forsynthesis
Packaging
100g
Price
$39.5
Updated
2024/03/01
Sigma-Aldrich
Product number
8.18402
Product name
Polytetrahydrofuran 1000
Purity
(stabilisedwith2,6-di-tert-butyl-4-methylphenol)forsynthesis
Packaging
500g
Price
$57.5
Updated
2024/03/01
Sigma-Aldrich
Product number
345261
Product name
Poly(tetrahydrofuran)
Purity
average Mn ~250
Packaging
1l
Price
$122
Updated
2023/06/20
Sigma-Aldrich
Product number
345261
Product name
Poly(tetrahydrofuran)
Purity
average Mn ~250
Packaging
3l
Price
$259
Updated
2023/06/20
scipoly
Product number
758
Product name
Poly(tetramethylene ether) glycol
Packaging
250g
Price
$35
Updated
2024/07/03
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Poly(tetrahydrofuran) Chemical Properties,Usage,Production

Chemical Properties

mp 11 - 38 °C 100 - 4,400 mPa.s @ 40 °C

Definition

ChEBI: A macromolecule composed of repeating oxybutylene units.

Preparation

Low molecular weight polymers of tetrahydrofuran were introduced commercially in 1955. The polymers were intended for use in the preparation of flexible polyurethane foams, being terminated by hydroxyl groups:


Although these polyethers produced good foams they were rather expensive and were soon displaced by the cheaper propylene oxide-based polyethers. However, these polymers of tetrahydrofuran (commonly called poly(oxytetramethylene)glycol) now find use in the preparation of polyamide, polyester and polyurethane thermoplastic elastomers.
Details of the manufacture of polytetrahydrofuran have not been disclosed. Polymerization of tetrahydrofuran can be effected only by cationic initiators. Combinations of metal halides with water are not effective but protic acids (e.g. HCl04) and oxonium salts (e.g. (C2H5￡?3O+BF4-) are efficient initiators. Polymerization occurs by a ring-opening mechanism involving a tertiary oxonium ion, e.g.

Solubility in organics

Alcohol, slightly in water; Insoluble in ether

Poly(tetrahydrofuran) Preparation Products And Raw materials

Raw materials

Preparation Products

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Poly(tetrahydrofuran) Suppliers

China 203 Europe 2 Germany 4 India 1 Japan 1 South Korea 1 Switzerland 1 United Kingdom 1 United States 8 Global 222
ecochem international chemical broker
Tel
--
Fax
--
Email
export@ecochem.dk
Country
Europe
ProdList
6371
Advantage
66
kemikalieimport
Tel
--
Fax
--
Email
Sales@kemikalieimport.dk
Country
Europe
ProdList
6685
Advantage
47
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View Lastest Price from Poly(tetrahydrofuran) manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Poly(tetrahydrofuran) 25190-06-1
Price
US $60.00/kg
Min. Order
1kg
Purity
99
Supply Ability
5000
Release date
2024-05-17
Hebei Yanxi Chemical Co., Ltd.
Product
Poly(tetrahydrofuran) 25190-06-1
Price
US $40.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
10 tons
Release date
2023-09-11
Hebei Weibang Biotechnology Co., Ltd
Product
Poly(tetrahydrofuran) 25190-06-1
Price
US $30.00-10.00/KG
Min. Order
50KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-24

25190-06-1, Poly(tetrahydrofuran)Related Search:

Propylene glycol 2,3-Butanediol 2-Butoxyethyl acetate 1-Methoxy-2-propyl acetate Allyloxypolyethyleneglycol 1,4-Butanediol 2,2-Dimethyl-1,3-propanediol 2-Phenoxyethanol POLY(1,4-BUTANEDIOL SUCCINATE) [LIQUID PHASE FOR GC] 2-Methyltetrahydrofuran 2-Butoxyethanol 1,3-Butanediol Ethylene glycol Polyethylene Glycol Triton X-100 2-Ethoxyethanol Tetrahydrofuran Estradiol

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