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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)
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Description
| Article No. | 06507 | Grade | AR |
| Purity | CAS No. | 3618-43-7 | |
| Molecular Formula | C31H28N2O13SNa4 | Molecular Weight | 760.59 |
| H.S. Code | 2934.9990 | 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 | ||||
Specifications
| Appearance | Red-brown to dark brown crystalline powder | Solubility (0.1% in 0.1 N NaOH) | Clear reddish to violet |
| Absorption maxima (0.1N NaOH) | 575 – 585 nm | Absorptivity (A 1%/1cm; at λmax) | Min 550 |
| Loss on drying (at 105°C; 1 hr) | Max 7% | Sensitivity for Zinc | Passes test |
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