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Propionic acid, also known as propanoic acid and bearing the CAS number 79-09-4, is a fundamental organic chemical with a distinctive profile of properties that dictate its widespread use across various industries. NINGBO INNO PHARMCHEM CO.,LTD. provides insights into this versatile compound, detailing its characteristics, production, and the necessary safety precautions for its handling.
Physically, propionic acid is a colorless, oily liquid characterized by a strong, pungent, and often described as rancid or body-odor-like smell. Its physical properties are intermediate between smaller carboxylic acids like acetic acid and larger fatty acids. It exhibits miscibility with water, although it can be precipitated from aqueous solutions by adding salt. Key physical data points include a melting point of -20.5 °C and a boiling point of 141.15 °C. Its density is approximately 0.988 g/mL at 25 °C, and it has a flash point of 54 °C, indicating its flammability.
Industrially, propionic acid is predominantly manufactured through the hydrocarboxylation of ethylene, a process that utilizes nickel carbonyl as a catalyst. Another common method involves the aerobic oxidation of propionaldehyde, typically at temperatures between 40–50 °C in the presence of cobalt or manganese salts. Biotechnological production routes, primarily using strains of Propionibacterium, are also employed, though they present challenges in product inhibition and byproduct formation.
From a safety perspective, propionic acid is classified as corrosive. Concentrated forms can cause severe skin burns and eye damage. Therefore, proper handling requires appropriate personal protective equipment (PPE), including gloves, eye protection, and protective clothing. Work involving propionic acid should ideally be conducted in a well-ventilated area or a fume hood to manage its strong odor and potential respiratory irritation. Storage recommendations typically include keeping it in tightly sealed containers away from heat and incompatible materials. NINGBO INNO PHARMCHEM CO.,LTD. adheres to strict quality and safety protocols in the production and supply of propionic acid, ensuring that customers receive a product that is not only effective but also handled and delivered with the utmost care.
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1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.
