79-09-4 | Propionic acid (C₃H₆O₂)

Chemical type

• Short-chain carboxylic acid (C₃) from biomass pyrolysis bio-oil

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• Chemical preservative / Additive

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Key properties

• Abundant in lignocellulosic pyrolysis bio-oils (mainly C₁–C₃ acids)
• Low carbon number, unsuitable for direct use as gasoline or aviation fuel
• Undergoes ketonisation (C–C coupling) with deoxygenation (loss of CO₂ and H₂O)

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• Strong antimicrobial agent (effective against molds, yeasts, and undesirable bacteria like Clostridium and Enterobacter)
• Antimitotic effect (inhibits microbial growth)
• Can act as a fungicide and bactericide in forage preservation

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• Model compound for bio-oil upgrading studies
• Starting material for self-ketonisation to 3-pentanone (biofuel precursor)
• Tested in 50:50 mixtures with real pyrolysis bio-oil to simulate industrial upgrading

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• Treatment for bermudagrass silage (applied at 0.5% and 1.0% of forage fresh weight)
• Improves silage preservation and aerobic stability
• Suppresses proteolytic bacteria, leading to higher crude protein preservation
• Reduces butyric acid and ammonia-N concentrations in silage

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Classification by use

• Biomass-derived feedstocks
• Intermediates for sustainable aviation fuel (SAF) production

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• Chemicals used in agriculture (forage preservation)
• Feed additives / Silage additives

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A trustworthy factory and manufacturer

Demei Chemical Technology Co., Ltd. is a modern high-tech enterprise integrating R&D, production, and sales. The company's founder, Dr. Arron, born in April 1975, graduated from the School of Mechanical Engineering at Yanshan University and has been engaged in research in the fields of mechanical engineering and chemical synthesis for many years. The company's products focus on the chemical industry, primarily dealing in chemical raw materials and chemical production machinery and equipment. With its strong technical capabilities, advanced production equipment, and strict quality management system, the company has earned the trust of customers worldwide.

1. [Cite:1] Dataset on the ketonisation of pure propionic acid and its mixture with pyrolysis bio-oil over metal oxide catalysts into 3-pentanone a biofuel precursor, Data in Brief, Volume 61, August 2025, 111898
2. [Cite:2] Nutritive value and fermentation characteristics of bermudagrass silage treated with propionic acid and microbial inoculant, Applied Animal Science, Volume 42, Issue 1, February 2026, Pages 9-18