9-Hydroxyxanthene
9-Hydroxyxanthene
CAS: 90-46-0
Molecular Formula: C13H10O2
9-Hydroxyxanthene - Names and Identifiers
| Name | 9-Hydroxyxanthene |
| Synonyms | 90-46-0 9H-Xanthén-9-ol 9H-xanthen-9-ol 9-Hydroxyxanthene XANTHYDROL,REAGENT xanthydrol solution 9-Hydroxy-9H-xanthene 9-Hydroxyxanthene, 9-Xanthenol XANTHYDROL R. G., REAG. PH. EUR. |
| CAS | 90-46-0 |
| EINECS | 201-996-1 |
| InChI | InChI=1/C13H10O2/c14-13-9-5-1-3-7-11(9)15-12-8-4-2-6-10(12)13/h1-8,13-14H |
9-Hydroxyxanthene - Physico-chemical Properties
| Molecular Formula | C13H10O2 |
| Molar Mass | 198.22 |
| Density | 0.83g/mLat 20°C |
| Melting Point | 122-124°C |
| Boling Point | 275.53°C (rough estimate) |
| Flash Point | 11°C |
| Solubility | methanol: 0.1g/mL, clear |
| Vapor Presure | 4.14E-05mmHg at 25°C |
| Appearance | Crystalline Powder |
| Color | White to off-white |
| BRN | 10395 |
| pKa | 13.57±0.20(Predicted) |
| Storage Condition | 2-8°C |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
| Sensitive | Light Sensitive |
| Refractive Index | 1.6620 (estimate) |
| Physical and Chemical Properties | White needle crystal. Melting point 123 ℃, soluble in cold acetone, soluble in alcohol, chloroform, very slightly soluble in water. Soluble in concentrated sulfuric acid, yellow and green fluorescence. |
9-Hydroxyxanthene - Risk and Safety
| Risk Codes | R11 - Highly Flammable R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R39/23/24/25 - R40 - Limited evidence of a carcinogenic effect |
| Safety Description | S7 - Keep container tightly closed. S16 - Keep away from sources of ignition. S24 - Avoid contact with skin. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. S22 - Do not breathe dust. S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 1230 3/PG 2 |
| WGK Germany | 3 |
| RTECS | ZD5710000 |
| FLUKA BRAND F CODES | 8-10-23 |
| TSCA | Yes |
| HS Code | 29329990 |
| Hazard Note | Irritant |
9-Hydroxyxanthene - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | for the determination of urea, DDT, amines, sulfonamide lamps, carbamates and substituted barbiturates. |
| production method | The sodium amalgam in dry toluene was warmed to 50 °c, Xanthene ketone-ethanol suspension was added, vigorously stirred, the temperature rose rapidly to 60-70 °c. After completion of the reaction, the mercury was isolated. The reaction solution was filtered, and the filtrate was poured into stirring blue distillate water, and 9-hydroxyxanthene was filtered, washed with water, and dried to obtain a finished product with a yield of 91-95%. |
Last Update：2024-04-10 22:29:15
