Xylenol Orange AR
Suitable for use in EDTA zinc titration. This substance has been specifically tested for its Suitability in EDTA-zinc titrations.
o-Cresolsulfonphthalein-3'-3-bis(methyliminodiacetic acid sodium salt)
Product Code. |
02854 |
Grade |
AR |
Purity |
CAS No. |
3618-43-7 | |
Molecular Formula |
C31H28N2O13SNa4 |
Molecular Weight |
760.59 |
H.S.Code |
2934.99000 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
Brown powder |
Odour |
Odorless |
| Melting point/ Freezing point [°C] |
195 °C |
Flash point [°C] |
93.3°C |
Solubility in water [% weight] |
Soluble in water |
Packaging
Specification
| Appearance | Red-brown to dark brown crystalline powder |
| Solubility (0.1% in 0.1 N NaOH) | Clear reddish to violet |
| Absorption maxima | 575 - 580 nm |
| Absorptivity (A 1%/1cm; at lmax) | Min 550 |
| Loss on dryig (at 105°C; 1 hr) | Max 7% |
| Sensitivity for Zinc | Passes test |
Safety Information and Hazard Symbols