POLYPROPYLENE GLYCOL, TRIOL TYPE
Poly(Propylene Glycol)
CAS: 25791-96-2
Molecular Formula: HO(C3H6O)nCH[CH2(OC3H6)nOH]2
POLYPROPYLENE GLYCOL, TRIOL TYPE - Names and Identifiers
| Name | Poly(Propylene Glycol) |
| Synonyms | Poly(Propylene Glycol) POLYPROPYLENE GLYCOL 1025 POLYPROPYLENE GLYCOL 3'250 POLYPROPYLENE GLYCOL P 2'000 POLYPROPYLENE GLYCOL P 1'200 POLYPROPYLENE GLYCOL NO 2,000 POLYPROPYLENE GLYCOL TRIOL 4'800 POLYPROPYLENE GLYCOL, TRIOL TYPE POLYPROPYLENE GLYCOL, TRIOL TYPE, 300 |
| CAS | 25791-96-2 |
| EINECS | 500-044-5 |
POLYPROPYLENE GLYCOL, TRIOL TYPE - Physico-chemical Properties
| Molecular Formula | HO(C3H6O)nCH[CH2(OC3H6)nOH]2 |
| Density | 1.09 g/mL at 25 °C |
| Melting Point | -40 °C |
| Flash Point | >230 °F |
| Solubility | H2O: <0.01 % (w/w) at 25°C |
| Vapor Presure | <0.3 mm Hg ( 20 °C) |
| Vapor Density | >1 (vs air) |
| Specific Gravity | 1.088 |
| Refractive Index | n20/D 1.46 |
POLYPROPYLENE GLYCOL, TRIOL TYPE - Risk and Safety
| WGK Germany | 3 |
| RTECS | TR5250000 |
POLYPROPYLENE GLYCOL, TRIOL TYPE - Production method
It is prepared by polymerizing glycerol with propylene oxide under the action of a catalyst.
CHOHCH2OHCH2OH (a B c)CH3-CH-CH2OKOH,90~95℃04~05MPa
CH2-O(C3H6O)aHCH-O(C3H6O)bHCH2-O(C3H6O)cH
Add propylene oxide and glycerol to the polymerization kettle, and carry out heating polymerization reaction under KOH catalysis. After the reaction, the temperature is reduced to 60~70 ℃, the material is pressed into the neutralization kettle, and then a certain amount of water is added under stirring to dissolve the excess alkali in the material, and then H3PO4 is added at 60~70 ℃ for neutralization, and pH = 6~7 is adjusted. After neutralization, slowly raise the temperature to 110~120 ℃, vacuum dehydrate, and then filter to obtain the finished product.
Last Update：2024-04-10 22:29:15
POLYPROPYLENE GLYCOL, TRIOL TYPE - Nature
| EPA chemical information | Glycerol polypropylene glycol triether (25791-96-2) |
Last Update：2024-04-09 01:59:51
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View History
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2-丁基-1-正辛醇
3,5-DIMETHYLPHENYLTHIOUREA
3-(4-NITRO-PHENOXYMETHYL)-BENZOIC ACID
4-氯-咪唑并[1,5-A]喹喔啉-3-羧酸乙酯
2-氨基-5h,6h,7h-环戊二烯[b]吡啶-3-甲腈
copper(2+) dinaphthalene-2-carboxylate
AI3-00707
聚塞氯铵,聚二氯乙基醚四甲基乙二胺
2,4,6-Tris(dimethylaminomethyl)phenol