Propanol , Analysis standard , 71-23-8
Synonym(s):
n-Propyl Alcohol;1-Propanol;n-Propyl alcohol, Propan-1-ol;Propyl alcohol
CAS NO.：71-23-8
Empirical Formula: C3H8O
Molecular Weight: 60.1
MDL number: MFCD00002941
EINECS: 200-746-9
PRODUCT Properties
| Melting point: | -127 °C(lit.) |
| Boiling point: | 97 °C(lit.) |
| Density | 0.804 g/mL at 25 °C(lit.) |
| vapor density | 2.1 (vs air) |
| vapor pressure | 10 mm Hg ( 147 °C) |
| refractive index | n |
| FEMA | 2928 | PROPYL ALCOHOL |
| Flash point: | 59 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: passes test |
| form | Liquid |
| pka | >14 (Schwarzenbach et al., 1993) |
| color | <10(APHA) |
| Odor | Resembles that of ethyl alcohol. |
| Relative polarity | 0.617 |
| PH | 7 (200g/l, H2O, 20℃) |
| explosive limit | 2.1-19.2%(V) |
| Odor Threshold | 0.094ppm |
| Odor Type | alcoholic |
| Water Solubility | soluble |
| λmax | λ: 220 nm Amax: ≤0.40 λ: 240 nm Amax: ≤0.071 λ: 275 nm Amax: ≤0.0044 |
| JECFA Number | 82 |
| Merck | 14,7842 |
| BRN | 1098242 |
| Henry's Law Constant | 6.75 (static headspace-GC, Merk and Riederer, 1997) |
| Exposure limits | TLV-TWA (200 ppm); (500 mg/m3); STEL
250 ppm (625 mg/m3); IDLH 4000 ppm. |
| Dielectric constant | 20.1（25℃） |
| Stability: | Stable. May form peroxides in contact with air. Incompatible with alkali metals, alkaline earths, aluminium, oxidizing agents, nitro compounds. Highly flammable. Vapour/air mixtures explosive. |
| LogP | 0.33 |
Description and Uses
1-propanol is the compound with the hydrogen atom in the propane molecules being replaced by hydroxyl group. Because the hydroxyl group can substitute the hydrogen atoms contained in the carbons in the two terminals of carbon chain or middle carbon, thus generating two isomers, n-propyl alcohol and isopropyl alcohol.
The chemical property of the 1-propanol is similar to that of ethanol. It is the byproduct during the process of the methanol synthesis from carbon monoxide and hydrogen. At room temperature and normal pressure, it appears as colorless transparent liquid with fragrance odor. In industry, it is prepared through the reaction between ethylene, carbon monoxide and hydrogen under high pressure and cobalt catalysis; alternatively through the hydration of propylene under the action of sulfate or through the catalytic hydrogenation of acetone. It is commonly used as a solvent with irritating effect on the eyes and mucosa. Inhalation of propyl alcohol steam can lead to dizziness, headache and vomiting, etc.
A colorless liquid made by oxidation of aliphatic hydrocarbons that is used as a solvent and chemical intermediate.
Safety
| Symbol(GHS) |    GHS02,GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H225-H318-H336 |
| Precautionary statements | P210-P233-P240-P241-P280-P305+P351+P338 |
| Hazard Codes | F,Xi |
| Risk Statements | 11-41-67 |
| Safety Statements | 7-16-24-26-39 |
| OEB | A |
| OEL | TWA: 200 ppm (500 mg/m3), STEL: 250 ppm (625 mg/m3) [skin] |
| RIDADR | UN 1274 3/PG 2 |
| WGK Germany | 1 |
| RTECS | UH8225000 |
| F | 10-23 |
| Autoignition Temperature | 700 °F |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29051200 |
| Toxicity | LD50 orally in rats: 1.87 g/kg (Smyth) |
| IDLA | 800 ppm |
