Ethylene glycol monomethyl ether series(EM, DEM, TEM)
| Item | Ethylene glycol monomethyl ether(EM) | Diethylene glycol monomethyl ether(DEM) | Triethylene glycol monomethyl ether(TEM) |
| CAS | 109-86-4 | 111-77-3 | 112-35-6 |
| Molecular formula | CH3OCH2CH2OH | CH3OCH2CH2OCH2CH2OH | CH3O(C2H4O)3H |
| Appearance | Colorless Transparent Liquid | Colorless Transparent Liquid | Colorless Transparent Liquid |
| Content(GC)%≥ | 99.5 | 99.0 | 98.0 |
| Distillation range(℃/760mmHg) | 122.5-127.0 | 191.0-198.0 | 230.0-250.0 |
| Water content %≤ | 0.1 | 0.1 | 0.1 |
| Acidity | 0.01 | / | / |
| Proportion(d420) | 0.965±0.005 | 1.018±0.005 | 1.049±0.005 |
| Chroma(Pt-Co)≤ | 10 | 15 | 30 |
| Various metal ions Content ≤ | 10ppb(Special requirements ≤1ppb) | 10ppb(Special requirements ≤1ppb) | 10ppb(Special requirements ≤1ppb) |
| Package | 200KGS/barrel hazardous goods | 200KGS/barrel General goods | 200KGS/barrel General goods |
Application:
Ethylene glycol monomethyl ether series products are high-performance solvents used in the electronics industry, widely used in industries such as photoresist diluents, photoresist removal solutions, stripping agents, IC cleaning agents, photoresist buffer solutions, etching processes, and other chemical products that require special specifications. They are also widely used as solvents in the production of electronic materials.
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