Enhanced TDS
Identification & Functionality
- Blend
- No
- Chemical Family
- Chemical Name
- Molecular Formula
- H[O(CH₂)₄]ₙOH
- Product Code
- MITM12242
- Single Ingredient
- Yes
- Synonyms
- Polyfurite, Polytetrahydrofuran, Poly(butylene oxide), Poly(n-butylene oxide), Poly(oxy-1,4-butanediyl), Poly(oxy-1,4-butanediyl), α-hydro-ω-hydroxy-, Poly(oxy-1,4-butylene) glycol, Poly(oxybutylene) glycol, Poly(oxytetramethylene), Poly(oxytetramethylene) glycol, Poly(oxytetramethylene)diol, Poly(tetrahydrofuran), SRU, Poly(tetrahydrofurandiol), Poly(tetramethylene ether), Poly(tetramethylene ether) glycol, Poly(tetramethylene ether)diol, Poly(tetramethylene glycol), Poly(tetramethylene oxide), Poly(tetramethylene oxide) glycol, Polybutylene glycol, Polyfurit, Polytetramethylene glycol, Polytetramethylene glycol ether with butanediol, Polytetramethylene oxide diol
- Technologies
- Product Families
Features & Benefits
- Base Chemicals Features
- CASE Ingredients Features
Applications & Uses
- Base Chemicals End Uses
- Markets
- Applications
- Product Applications
PTMEG-220 belongs to the class of polyether polyols which have excellent reactivity.
It is used to make a high quality of polyurethane including spandex and copolyester-ether in such applications as:- Polyurethane Elastomers
- Synthetic Leathers
- Paint, Coating Agent
- Adhesives, Sealants
- Polyester Elastomers
- Polyamide Elastomers
Properties
- Physical Form
- Soluble In
Regulatory & Compliance
- Contains any chemicals listed on Prop 65 (including impurities, residues, catalysts, monomers, and by-products and excluding heavy metals)?
Packaging & Availability
Principal Information
- Group Principal Number
- S002143
- Principal
Storage & Handling
- Storage and Handling Condition
Precautions
Because PTMEG-220 is hygroscopic and oxidized, it is very important to protect PTMEG-220 against exposure to moisture and air. All Korea PTG’s PTMEG-220 contain oxidation inhibitors to prevent peroxides. PTMEG-220 is ignitable at high temperature. Water spray, alcohol resistant foam, dry chemical or CO₂ extinguishers may be used to fight fire. When water or foam is used, frothing may occur. When PTMEG-220 is impregnated into high-surface-area material such as fibrous insulation (e.g., glass fiber, rock wool), PTMEG-220 can be decomposed rapidly, releasing very flammable tetrahydrofuran, gamma- butyrolactone, etc. and may ignite at temperatures as low as 100°C.
Steel Drum
Solidified PTMEG-220 can be molten by being heated in melting room about 70°C for about 2~3 days. Temperatures above 90°C are not recommended for prolonged storage. Drums should be stored in dry places such as warehouse with roof and before use any water on top plate of drums should be removed to prevent moisture contamination. During opening of drums and use of PTMEG-220 in drums, nitrogen should be serviced into drums to avoid the contact with moisture and air.
ISO Tank
Shipping temperature of ISO tank for PTMEG-220 is about 60°C. ISO tank is insulated and provided with heating coils for reheating. If temperature is low and the product is solidified, enough reheating is required for melting and careful attention is required to avoid plugging of vent, nitrogen gas line and product line. Insure that ISO tank is adequately grounded before connecting and unloading.
Storage Tank
The storage tank must be provided with external or internal heating to maintain a temperature of about 50~60°C (Internal heating coil is recommended due to heating efficiency). Because PTMEG-220 is hygroscopic and oxidized, it is very important to protect PTMEG-220 against exposure to moisture and air. Therefore, Korea PTG recommends that PTMEG-220 should be stored in completely enclosed tanks or containers under a dry nitrogen blanket.
Stability
Shelf life of PTMEG-220 is approximate 2 years, under condition that the product is stored in unopened, tightly sealed original container at no greater than 90°C and is not contacted with air under a dry nitrogen blanket. Shelf life is only guidance and is not a guarantee because there are various possibilities in site of end users to affect the quality of PTMEG-220G.
Other
- Appearance
- Transparent liquid or white waxy solid at low temperature
- Appearance (SDS)
- Liquid to waxy, colorless
- Item Number
- Other Hazards
- However may be a slight irritation to the skin or eye depending classification on the experience of the person in manufacturing.
- USA/DOT UN Number
- Not Applicable
- Optical Properties
Value Units Test Method / Conditions Color Scale max. 40.0 APHA APHA Color Scale max. 40.0 ASTM ASTM 2b889752-a817-4a6e-bd49-029825e637fd - Chemical Properties
Value Units Test Method / Conditions Acid Number max. 0.05 mg KOH/g mg KOH/g DIN 53402 Hydroxyl Value 458.0-575.4 mg KOH/g mg KOH/g ASTM D4274 - Shelf Life & Stability
Value Units Test Method / Conditions Shelf Life1 2.0 yr yr - Physical Properties
Value Units Test Method / Conditions Boiling Point min. 250.0 °C °C Flash Point min. 260.0 °C °C Melting Point -5.0 °C °C Molecular Weight 170.0-270.0 g/mol g/mol ASTM D4274 Specific Gravity 0.991 - at 40/4°C Viscosity 50.0-60.0 cPs cPs At 40°C - Material Composition
Value Units Test Method / Conditions Butylated Hydroxy Toluene Content 170.0-270.0 ppm ppm Spectroscopy Organic Chlorine Equivalent Content max. 2.0 %(W/W) %(W/W) Gas Chromatography - SDS Physical and Chemical Properties
Value Units Test Method / Conditions Boiling Point (SDS) min. 204.0 °C °C Flash Point (SDS) 259.0 °C °C Melting Point (SDS) 25.0-32.0 °C °C Molecular Weight (SDS) 2000.0 g/mol g/mol Specific Gravity (SDS) 0.979 - at 25°C