What is Normal Propyl Alcohol (CAS 71-23-8)?
1-Propanol, also known as Normal Propyl Alcohol, is an organic compound, at standard temperature and pressure, n-propanol is a transparent, colorless liquid with a strong, musty odor similar to rubbing alcohol. It is soluble in water, ethanol, and diethyl ether. It is typically synthesized from ethylene via carbonylation to produce propionaldehyde, followed by reduction.
Normal Propyl Alcohol structure
1-Propanol (also propan-1-ol, propanol, n-propyl alcohol) is a primary alcohol with the formula CH 3CH 2CH 2OH and sometimes represented as PrOH or n-PrOH. It is a colourless liquid and an isomer of 2-propanol.
Physical and Chemical Properties of n-Propanol (CAS No. 71-23-8)
| Property Category | Parameter | Value / Description |
|---|---|---|
| Chemical Identity | Chemical Name | n-Propanol |
| Synonyms | 1-Propanol, Normal Propyl Alcohol, NPA Alcohol | |
| CAS Number | 71-23-8 | |
| Molecular Formula | C₃H₈O | |
| Molecular Weight | 60.10 g/mol | |
| Physical Properties | Appearance | Colorless, transparent liquid |
| Odor | Alcohol-like, slightly pungent | |
| Density (20 °C) | ~0.804 g/cm³ | |
| Melting Point | −127 °C | |
| Boiling Point | ~97.2 °C | |
| Flash Point (Closed Cup) | ~15 °C | |
| Vapor Pressure (20 °C) | ~21 mmHg | |
| Evaporation Rate | Moderate | |
| Solubility | Water Solubility | Completely miscible |
| Solubility in Organic Solvents | Miscible with ethanol, ether, acetone, benzene | |
| Chemical Properties | Alcohol Type | Primary alcohol |
| Functional Group | Hydroxyl group (–OH) | |
| Reactivity | Undergoes esterification, oxidation, dehydration | |
| Oxidation Products | Propionaldehyde, propionic acid | |
| Chemical Stability | Stable under normal conditions | |
| Flammability & Safety | Flammability | Highly flammable liquid |
| Auto-Ignition Temperature | ~371 °C | |
| Explosive Limits (Air) | 2.1% – 13.5% (v/v) | |
| Handling & Storage | Storage Conditions | Cool, dry, well-ventilated area |
| Incompatible Materials | Strong oxidizers, acids |
Normal Propyl Alcohol Uses
Coatings and Inks
Normal Propyl Alcohol is a solvent in the coating and inks (flexographic printing) applications.
Manufacturing of other Chemicals
n-Propanol is used as an intermediate in the production of n-propyl acetate and propyl amines.
Other Applications
Normal Propyl Alcohol is used as an extraction agent for flower perfumes, pharmaceutical products and household personal care, formulation in industrial detergents and polishes, antifreeze agents, adhesives, dehydrating agent, high purity IPA in the electronic industries etc.
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