107-10-8

Propylamine(107-10-8) appears as a clear colorless liquid with an ammonia-like odor. Flash point -35 °F. Less dense than water and soluble in water. Vapors are heavier than air. Produces toxic oxides of nitrogen during combustion. Used in chemical analysis and to make other chemicals.

Colorless, alkaline liquid, very volatile (b. p. 48° C), moderately toxic, highly flammable. Dangerous fire hazard when exposed to heat, flame, sparks, or strong oxidizers. When heated to decomposition MONOPROPYLAMINE(107-10-8) emits toxic fumes of oxides of nitrogen. Incompatible with triethylaluminum, complex may explode on sublimation [Chini, P. et al., Chim. e Ind (Milan), 1962, 44, p. 1220].

Highly flammable. Slightly soluble in water.

Highly flammable, dangerous fire risk, explosive limits in air 2–10%, use alcohol foam to extinguish. Strong irritant to skin and tissue.

INHALATION: Mucous membrane and respiratory tract irritation. Tracheitis, bronchitis, pneumonitis, and pulmonary edema. EYES: Severe corneal damage or complete eye destruction. SKIN: Single drop-deep necrosis. INGESTION: Corrosive to G.I. tract.

Propylamine is used to make textile resins, drugs, pesticides, and other chemicals.

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, includ- ing resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medi- cal attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. Medical observation is recommended for 24?48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.

UN1277 Propylamine, Hazard Class: 3; Labels: 3-Flammable liquid, 8-Corrosive material.

Vapors may form explosive mixture with air. Violent reaction on contact with oxidizers and mercury, strong acids; organic anhydrides; isocyanates, aldehydes, nitroparrafins, halogenated hydrocarbons; alcohols and many other compounds. Attacks many metals and alloys, especially those of copper. Aqueous solution is acidic and may attack glass.

Propylamine, with the chemical formula C3H9N, is a colorless and volatile liquid. It can be dissolved in various solvents such as water, ethanol, ether, acetone, benzene, and other organic solvents. Its specific gravity is 0.7, making it lighter than water. Propylamine has a flammable range of 2% to 10% in air and is flammable. It has a boiling point of 120°F (48°C), flash point of 35°F (37°C), and an ignition temperature of 604°F (317°C). Its vapor density is 2, heavier than air, and can form explosive mixtures when combined with air. It can burn and is corrosive, causing skin and tissue irritation. Its primary uses are as a chemical intermediate and a lab reagent.

n-Propylamine, also known as propylamine or 107-10-8, is a colorless liquid with a pungent odor resembling ammonia. It has strong basic properties, leading to its easy formation of salts when combined with acids. Its reactivity is similar to that described for the other short chain aliphatic amines (Astel 1961).

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.

ChEBI: Propylamine is a member of the class of alkylamines that is propane substituted by an amino group at C-1. It is a conjugate base of a propan-1-aminium.

There are several methods employed in the manufacture of propylamine. Typically, ammonia and propanol are reacted over a dehydration catalyst at high temperature and pressure. Ammonia, propanol, and hydrogen can also be reacted over a dehydrogenation catalyst such as metallic silver. Propylamine can also be synthesized from propionaldehyde and ammonia with a Raney nickel catalyst (Schweizer et al 1978).

High strength odor; ammoniacal type; recommend smelling in a 0.10% solution or less.

Highly flammable liquid; flash point (closed cup) -37°C (-35°F); vapor density 2.0 (air = 1), vapor can travel a considerable distance to a source of ignition and flash back; autoignition temperature 318°C (604°F); fire extinguishing agent: dry chemical, CO2, or “alcohol” foam; water should be used to keep fire-exposed containers cool and to flush and dilute the spill.
n-Propylamine forms explosive mixtures in air; LEL and UEL values are 2.0% and 10.4% by volume in air, respectively. There is no report of explosion associated with this compound. It is expected to exhibit violent reactions characteristic of lower aliphatic primary amines .

Propylamine is important as a chemical intermediate for rubber chemicals, dyestuffs, propyl isocyanate, textile and leather finishing resins and corrosion inhibitors. It is also used in the production of pharmaceuticals such as Prilocaine, pesticides including Profluralin and in petroleum additives. In 1976, 500 tons of propylamine were manufactured in the U.S. (HSDB 1988).

To date, there are several studies which indicate that propylamine may be metabolized in many animal species, including man. When propylamine hydrochloride was administered to humans orally, little of the parent compound was recovered in the urine (Rechenberger 1940). It has also been reported that dogs are capable of metabolizing propylamine (Bernhard 1938). McEwen et al (1966) demonstrated that monoamine oxidase, purified from rabbit serum, was capable of oxidizing propylamine, although less actively than substituted phenylethylamines such as dopamine. Further characterization revealed that the protonated amine is bound by an unprotonated enzyme group, that the enzyme active site is composed of hydrophobic residues, and that interaction of the amine residues determines maximal velocity and affinity constant (McEwen and Sober 1967). Oxidation of the amine could be stimulated by the presence of aliphatic alcohols which apparently bond in a tertiary complex with the enzyme and substrate, thereby increasing the effectiveness of substrate binding.
Other investigators have provided evidence that propylamine may not be a substrate for tissue monoamine oxidase. When given intraperitoneally to rats it had no effect on the liver enzyme and little effect on activity in the brain (Valiev 1974). Early work by Pugh and Quastel (1937) indicated that slices of rat brain did not metabolize propylamine.

Distil the amine from zinc dust, under reduced pressure, in an atmosphere of nitrogen. [Beilstein 4 IV 464.]

The initial threshold screening level (ITSL) for propylarnine is 112 μg/m3 based on anannual averaging time.