A6665412
Propionic anhydride , ≥98.5%(GC) , 123-62-6
Synonym(s):
Propanoic anhydride;Propionic anhydride
CAS NO.：123-62-6
Empirical Formula: C6H10O3
Molecular Weight: 130.14
MDL number: MFCD00009303
EINECS: 204-638-2
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | -42 °C |
| Boiling point: | 167 °C(lit.) |
| Density | 1.015 g/mL at 25 °C(lit.) |
| vapor density | 4.5 (vs air) |
| vapor pressure | 10 mm Hg ( 57.7 °C) |
| refractive index | n |
| Flash point: | 165 °F |
| storage temp. | Store below +30°C. |
| solubility | H2O: decomposes (when in contact with water) |
| form | clear liquid |
| color | Colorless to Almost colorless |
| Odor | like acetaldehyde |
| PH | 2.5 (100g/l, H2O, 20℃)(calculated on the free acid) |
| explosive limit | 1.3-9.5%(V) |
| Water Solubility | hydrolyses |
| Sensitive | Moisture Sensitive |
| Merck | 14,7826 |
| BRN | 507066 |
| Dielectric constant | 18.0（16℃） |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents, water, moisture, most common metals, active halogen compounds, ammonia, amines. |
| LogP | 0.33 at 20℃ |
| CAS DataBase Reference | 123-62-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Propanoic acid, anhydride(123-62-6) |
| EPA Substance Registry System | Propionic anhydride (123-62-6) |
Description and Uses
Propionic anhydride is used as a esterifying agent for certain perfume oils, fats, oils, and especially cellulose and as a reagent in organic synthesis. In the production of alkyd resins, dyestuffs and drugs. Has been used as a dehydrating agent in some sulfonations and nitrations.
Safety
| Symbol(GHS) |  GHS05 |
| Signal word | Danger |
| Hazard statements | H314 |
| Precautionary statements | P280-P301+P330+P331-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363 |
| Hazard Codes | C |
| Risk Statements | 34-R34 |
| Safety Statements | 26-45-S45-S26 |
| RIDADR | UN 2496 8/PG 3 |
| WGK Germany | 1 |
| RTECS | UF9100000 |
| Autoignition Temperature | 545 °F |
| Hazard Note | Corrosive/Moisture Sensitive |
| TSCA | Yes |
| HS Code | 2915 90 70 |
| HazardClass | 8 |
| PackingGroup | III |
| Hazardous Substances Data | 123-62-6(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 2.36 g/kg (Smyth) |
