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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
CAS NO.：25190-06-1
The molecular formula：HO-[-CH2CH2CH2CH2O-]n-H
Price: $0.00
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. | |||
