Salicylaldehyde , Analysis standard , 90-02-8
Synonym(s):
2-Hydroxybenzaldehyde;Salicylaldehyde
CAS NO.：90-02-8
Empirical Formula: C7H6O2
Molecular Weight: 122.12
MDL number: MFCD00003317
EINECS: 201-961-0
PRODUCT Properties
| Melting point: | 1-2 °C (lit.) |
| Boiling point: | 197 °C (lit.) |
| Density | 1.146 g/mL at 25 °C (lit.) |
| vapor density | 4.2 (vs air) |
| vapor pressure | 1 mm Hg ( 33 °C) |
| refractive index | n |
| FEMA | 3004 | SALICYLALDEHYDE |
| Flash point: | 170 °F |
| storage temp. | -20°C |
| solubility | 4.9g/l |
| form | Liquid |
| pka | 8.37(at 25℃) |
| color | Clear yellow |
| PH | 6-8 (H2O, 20℃)Not applicable |
| Odor | Bitter almonds |
| Odor Type | medicinal |
| Water Solubility | slightly soluble |
| Sensitive | Air & Light Sensitive |
| Merck | 14,8326 |
| JECFA Number | 897 |
| BRN | 471388 |
| Dielectric constant | 13.9（20℃） |
| Exposure limits | ACGIH: TWA 5 ppm (Skin) OSHA: TWA 5 ppm(19 mg/m3) NIOSH: IDLH 250 ppm; TWA 5 ppm(19 mg/m3); Ceiling 15.6 ppm(60 mg/m3) |
| Stability: | Stable. Combustible. Incompatible with strong bases, strong reducing agents, strong acids, strong oxidizing agents. |
| InChIKey | SMQUZDBALVYZAC-UHFFFAOYSA-N |
| LogP | 1.66 at 25℃ and pH6.2-6.3 |
Description and Uses
Salicylaldehyde (2-hydroxybenzaldehyde) is an organic compound with the formula C6H4CHO-2-OH. Along with 3-hydroxybenzaldehyde and 4-hydroxybenzaldehyde, it is one of the three isomers of hydroxybenzaldehyde. It is a colorless or pale yellow liquid with a bitter almond odor and a burning taste. It is soluble in alcohol, benzene, and ether, and very slightly soluble in water. Salicylaldehyde is found in shrubs of the genus Spiraea and is usually produced from phenol by the action of chloroform in the presence of an alkali base. It is used in the production of coumarin, saligenin, and salicylaldoxime (an important analytical reagent), and also in analytical chemistry—for example, to detect hydrazine. Besides, salicylaldehyde is a key precursor to various chelating agents and a flavouring ingredient.
Salicylaldehyde, is used as flavor and fragrance components. Salicylaldehyde is also a common highly-functionalized arene, that can be used as a precursor in the synthesis of other chemicals.
Safety
| Symbol(GHS) |    GHS07,GHS08,GHS09 |
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H341-H411 |
| Precautionary statements | P202-P273-P301+P312-P302+P352-P305+P351+P338-P308+P313 |
| Hazard Codes | Xn,N |
| Risk Statements | 21/22-36/38-68-36/37/38-20/21/22-51-36-51/53-22 |
| Safety Statements | 26-36/37-36/37/39-36-61-64-29/35 |
| RIDADR | 3082 |
| WGK Germany | 2 |
| RTECS | VN5250000 |
| F | 8-10-23 |
| TSCA | Yes |
| HazardClass | 6.1(b) |
| PackingGroup | II |
| HS Code | 29122990 |
| Toxicity | MLD in rats (mg/kg): 900-1000 s.c. (Binet) |
