Typical Properties of High Purity Sulfolane
|
CAS registry number |
126-33-0 |
|
Molecular formula |
C4H8O2S |
|
Molecular weight |
120 |
|
Appearance |
Very pale straw solid |
|
Density at 30℃ |
1.260 g/ml |
|
Initial boiling point |
281.1℃ (554.1 K) |
|
Dry point |
286.1℃ (559.1 K) |
|
Freezing point |
27℃ (300 K) |
|
Colour - Hazen |
50 |
|
COLOUR - Klett |
40 |
|
pH |
4.9 |
|
Refractive index n30D |
1.4812 |
|
Water content |
0.09% m/m |
|
Sulphur dioxide content |
115 ppm |
|
Sulfolene-2 content |
< 0.05% |
|
Isopropyl sulfolane aether |
< 0.05% |
|
Ash content |
0.001% m/m |
|
Flash point (Cleveland open cup) |
177℃ (450 K) |
Typical properties of Aqueous Sulfolane
For ease of handling, SULFOLANE is normally supplied containing ~3% water, as this mixture is fluid at 10°C (see graph opposite). The typical properties of this product are listed below.
|
Water content |
~ 3% |
|
Melting point |
~ 9℃ (282 K) |
|
Monoethanolamine content |
200-250 ppm |
|
pH |
8 |