Pentaerythritol
Product name： Pentaerythrite; PentaerythritolAbbreviations： PER
CAS No： [115-77-5]
Molecular form： C(CH2OH)4
Molecular weight： 136.15
Quality index： White crystalline or powder
Assay%： ≥98.0%
Melting point℃： 261~262℃
Boiling point℃： 276℃
Relative density： 1.395g/cm3
Refractive index： 1.548
Solubility： At 15°C ,1g soluble in 18ml water. Slightly soluble in ethanol, is not soluble in benzene, ether and petroleum ether.
Stability： Stable in the air, difficult-absorbent.
Other physical and chemical properties： Slightly sweet, non-toxic.
Preparation method： Acetaldehyde and formaldehyde in alkaline conditions after the condensation with hydrogen reduction or with formaldehyde in alkali reaction conditions.
Storage：
Stored in dry, clean, ventilated warehouse.
Usage：
Used for the production of alkyd resins and patints. Also is the main material of synthetic lubricants, plasticizers, surfactants and explosives.
| Items | Specification |
|||
Mono-PE wt.% min |
86 |
90 |
95 |
98 |
Hydroxyl wt.% min |
46.0 |
47.0 |
47.5 |
48.5 |
Moisture wt.% max |
0.5 |
0.5 |
0.5 |
0.2 |
Ash wt.% max |
0.1 |
0.1 |
0.1 |
0.05 |
PhthalicColor ((Fe,Co,Cu) max |
4 |
2 |
2 |
1 |
Appearance |
White Crystalline Powder |
|||
Dipentaerythritol
Product Name: DipentaerythritolCAS NO: 126-58-9
HS Code: 29054200
Molecular Formula: C10H22O7
Appearance: White powder
Use: In the production of polyether, polyester, polyurethanes, alkyd resins and photosensitive resin films etc.
|
Items |
Specification |
||
|
Di-PE wt.% min. |
85.0 |
90.0 |
95.0
|
|
Mono-PE wt. % max. |
4.0 |
3.0
|
2.0
|
|
Tri-PE wt. % max. |
10.0 |
7.0
|
4.0
|
|
Hydroxyl group wt.% . |
38.0-40.0 |
38.0-40.0 |
39.5-40.5 |
|
Moisture wt. % max. |
1.0 |
1.0 |
1.0 |
|
Ash wt. % max. |
0.1 |
0.1 |
0.1 |
|
Phthalic Color max. |
3 |
3 |
2 |
|
Appearance |
White Powder |
||
Tripentaerythritol
Quality index： It is white crystalline or powderUsage： It has similar function as dipentaerythritol.but perform better in the use for acrylic resins,fire-retardant coating,senior aviation lubricant,plastic additive and polymer modified materials.
|
item |
specification |
|
|
70
|
60
|
|
|
Tri-PE wt. % min. |
70
|
60
|
|
Mono-PE wt. % max. |
10.0
|
12.0
|
|
Di-PE wt.% max. |
17.0
|
12.0
|
|
Hydroxyl group% min. |
33.0
|
33.0
|
|
Ash wt. % max. |
3.0
|
3.5
|
|
Moisture% max. |
1.0
|
1.5
|
