| Molecular Formula | C7H6O3
|
| Molar Mass | 138.12 |
| Density | 1.44 |
| Melting Point | 158-161°C(lit.) |
| Boling Point | 211°C(lit.) |
| Flash Point | 157 °C |
| JECFA Number | 958 |
| Water Solubility | 1.8 g/L (20 ºC) |
| Solubility | Slightly soluble in water, easily soluble in ethanol and ether. 1 gram of this product can be dissolved in 460 ml of water, 15 ml of hot water, 2.7 ml of alcohol, 3 ml of acetone, 42 ml of chloroform, 3 ml of ether, 135 ml of benzene, 52 ml of turpentine |
| Vapor Presure | 1 mm Hg ( 114 °C) |
| Vapor Density | 4.8 (vs air) |
| Appearance | White needle crystal |
| Color | White to off-white |
| Maximum wavelength(λmax) | ['210nm, 234nm, 303nm'] |
| Merck | 14,8332 |
| BRN | 774890 |
| pKa | 2.98(at 25℃) |
| PH | 3.21(1 mM solution);2.57(10 mM solution);2.02(100 mM solution); |
| Storage Condition | 2-8°C |
| Stability | Stable. Substances to be avoided include oxidizing agents, strong bases, iodine, fluorine. Combustible. Sensitive to light. |
| Sensitive | Light Sensitive |
| Refractive Index | 1,565 |
| MDL | MFCD00002439 |
| Physical and Chemical Properties | Character: White needle-like crystal or monoclinic prisms, with spicy taste.
melting point 159 ℃
boiling point 211 ℃
relative density 1.443
solubility slightly soluble in water, soluble in acetone, turpentine, ethanol, ether, benzene and chloroform.
|
| Use | The pharmaceutical industry is used to make antipyretic, analgesic, anti-inflammatory, diuretic and other drugs, the dye industry is used to make azo direct dyes and acid mordant dyes, also used in spices and so on |
China
