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Pentaerythritol
1. SPECS:
Item | 98 | 95 | 90 | 86 | ||
Mono-Pewt /% ≥ | 98.0 | 95.0 | 90.0 | 86.0 | ||
Hydroxy % ≥ | 48.5 | 47.5 | 47.0 | 46.0 | ||
Heating loss% ≤ |
0.20 |
0.50 | ||||
Ash % ≤ |
0.05 |
0.10 | ||||
Tinctorial strength of phthalic resins ≤ |
1 |
2 |
4 | |||
melting point/°C ≥ | 250 | ------- | - ------ | --------- | ||
Items | Specification | ||
High grade | First grade | Qualified grade | |
≥ Di-PE WT% | 88-90 | 85 | 80 |
≤ Mono-PEWT% | 3 | 5 | 8 |
≤ Tri-peWT% | 6 | 10 | 12 |
≤ Ash,WT% | 0.05 | 0.10 | 0.50 |
≤ Heating loss% | 0.5 | 0.5 | 1.0 |
% Hydroxyl Group% | 38-40 | 38-40 | 37-41 |
Phthalic Color | 2 | 3 | 6 |
| Composition | 98 grade | 95grade | 90grade |
| (Mono-PE),wt. % ,min | 98.0 | 95.0 | 90.0 |
| (Hydroxyl),wt. % ,min. | 48.5 | 48.0 | 47.0 |
| (Ash), wt,wt. % ,max. | 0.05 | 0.10 | 0.10 |
| (Moisture),wt. % ,max | 0.50 | 0.50 | 0.50 |
| (PhthalicColor)(Fe,Co,Cu) max | 1 | 2 | 2 |
2. Other informations:
Solubility: soluble in 18ml water. soluble in ethanol, glycerin, glycol, methanamide. insoluble in acetone, benzene, carbon tetrachloride, ether and petroleum ether etc. Application: Pentaerythritol is used in coating industry; also used in the making of aeroplane oil, explosives, plasticizers and stabilizers.
Pentaerythritol