3D model (Jmol)
|Molar mass||672.66 g·mol−1|
|Melting point||195 °C (383 °F; 468 K)|
|R-phrases (outdated)||R10, R20, R21, R22, R36, R38|
|S-phrases (outdated)||(S1/2), S26, S27, S28, S62, S63|
|Flash point||> 93 °C (199 °F; 366 K)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Xylenol orange is an organic reagent, most commonly used as a tetrasodium salt as an indicator for metal titrations. When used for metal titrations it will appear red in the titrand and yellow once it reaches its endpoint. Historically, commercial preparations of it have been notoriously impure, sometimes consisting of as little as 20% xylenol orange, and containing large amounts of semi-xylenol orange and iminodiacetic acid. Purities as high as 90% are now available.
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