Technical Information
| Phenolsulfonphthalein, Fenolipuna, Sulfonphthal | Synonym |
|---|---|
|
143-74-8
|
CAS-No
|
|
205-609-7
|
EC-No
|
|
C19H14O5S
|
Linear formula
|
|
Greenish red to red coloured crystalline powder
|
Appearance
|
|
0.77 g/l (100ºC)
|
Solub. in H2O
|
|
354.38 g/mol
|
Molecular Weight
|
|
>300ºC
|
Melting point
|
|
~562.8ºC
|
Boiling point
|
|
~1.15 g/cm3
|
Spec. density
|
|
200-300 Kg/m3
|
Bulk. Density
|
|
2934-99-90
|
HS-No
|
|
Eye irritation, Skin irritation, H315, H319, H335, P261, P304+P340, P305+P351+P338, P405 LGK 10 - 13
|
GHS
|
|
Keep container tightly closed in a dry and well-ventilated place
|
Storage Conditions
|
|
98.0 -102.0%
|
Assay (bromometric)
|
|
≤ 5000 ppm
|
2-Propanol (HS-GC)
|
|
≤ 890 ppm
|
Toluene (HS-GC)
|
|
≤ 0.2%
|
Sulfated ash
|
|
≤1.0%
|
Loss on drying (105 ºC)
|
|
≤ 0.5%
|
Insoluble substances
|
|
pH 1.2 – 3.0 Brownish orange – yellow
|
1st transition range
|
|
pH 6.5 – 8.0 Brownish yellow – red violet
|
2nd transition range
|
|
passes test
|
Transition range (according to ACS)
|
