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Viscosity
Ratio IXOL/Polyol and Performance
General characteristics
| Hydroxyl number |
mg KOH/g |
330 |
| Density at 25°C |
g/cm³ |
1.580 |
| Viskosity at 25°C |
mPa s |
7,000 |
| Flash point (open cup) |
°C |
196 |
| Water content |
wt-% |
<0.2 |
| Bromine |
wt-% |
 31.5 |
| Chlorine |
wt-% |
6.9 |
| Acidity |
mg KOH/g |
< 0,3 |
| Appearance |
|
dark-brown liquid |
| These values are given as an indication and do not represent sales guarantees. Sales guarantees are available on request. |
Example of fire tests
| United Kingdom |
BS 476, part 7 |
Class 1 |
| France |
Epiradiateur, NF P 92-501 |
Class M1 |
| Germany |
DIN 4102 |
Class B2 |
| Switzerland |
EMPA |
Class V |
| USA |
ASTM E-84 |
Class 1 |
IXOL B 251
A High Standard in Fire Safety
IXOL B 251 is a brominated aliphatic polyether triol, particularly well suited for the production of rigid polyurethane foams. Is has a moderate viscosity and a good compatibility with the main conventional polyols (polyether or polyesters). Besides, IXOL B 251 gives a permanent flame retardant effect since the active component (bromine) is chemically bound to the final polymer.
The polyol IXOL B 251 can be used with the new generation of blowing agents. In particular, the combination of IXOL B 251 with our third generation blowing agent Solkane 365/227 can lead to foams offering an outstanding fire behavior and excellent insulation properties.
In addition, the polyol IXOL B 251 can be used in foams blown with flammable blowing agents such as pentane derivatives. In that case, the high performance ot that polyol can improve the fire behavior of the foam in spite ot the high flammability of pentane isomers.
IXOL B 251 has been manufactured in our plant of Tavaux (France) for more than 20 years. It is a mature product; its manufacturing process is proven and is running totally under computer control, which ensures optimum and constant quality. The production process of the polyol IXOL B 251 is certified ISO 9000.
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