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Product Name:PTMEG
Specification:
Delivery Place:
Origin:NINGXIA CHINA
Package:200KG steel barrel or tanker, with external packing of high purity nitrogen seal.
Instruction:
CAS NO.:25190-06-1
The molecular formula:HO-[-CH2CH2CH2CH2O-]n-H
Price: $0.00    
Order Quantity: KG
(Minimum Order Quantity: 1 KG)
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Description
 
Product Properties White wax solid, may become transparent liquid when the temperature is higher than common room trmperature.
Usage  Mainly used for the production of spandex, PTMEG polyurethane elastmoer and ester ether copolymer elastomer. In our country the main applications of PTMEG is spandex. In fiber application field, it is mainly used for the polyurethane elastomer (PU elastomer) and PU pulp, coating, adhesive,sealants,etc.
standard GB/T 25254-2010
Item Indicator
PTMEG650 PTMEG1000 PTMEG1800 PTMEG2000
Hydroxyl value(according to KOH consumption )/(rag/g) 166.24-179.54 106.87-118.12 60.65-64.12 54.74-57.54
Average molar mass/(g/t001) 625-675 950-1050 1750-1850 1950-2050
Mass fraction of water/(pg/g) ≤100
 Chroma(pt-cobalt) ≤30
Acid value(according to KOHconsumption)/(rag/g) ≤0.05
Peroxide(pg/g) ≤5
Stabilizing agent(BHT)/(pg/g) Negotiation of supply and requisitioning parties.
Note: BHT is the abbrebiation of butylated hydroxytoluene.
Storage Should be stored in pot or other containers completely sealed with dry nitrogen.
Transportation For PTMEG has water absorption and easy oxidation , make sure avoiding exposure to moisture and air.
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