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A comprehensive examination of thermodynamic characteristics and their industrial applications.
Propionic acid (systematically designated as propanoic acid, CH3CH2COOH) is a short-chain saturated fatty acid characterized by a weak carboxylic acid configuration. At thermodynamic equilibrium, its dissociation constant (expressed as pKa) is precisely 4.88 at 25°C. This specific constant is a foundational parameter for predicting the behavior of the chemical in aqueous systems, physiological environments, and chemical synthesis formulations.
The pKa represents the pH value at which the acid is exactly 50% ionized (in the form of its conjugate base, propionate, CH3CH2COO-) and 50% un-ionized. This ionization state directly governs its antimicrobial efficacy. In feed preservation and agricultural applications, the un-ionized form of propionic acid is the active agent capable of crossing the lipophilic cell membranes of molds and bacteria. Once inside the near-neutral interior of the microbial cell, it dissociates, disrupting osmotic balance and cellular metabolism.
CE Certification serves as a declaration that a product complies with the essential health, safety, and environmental protection standards of the European Economic Area (EEA). For propionic acid suppliers and derivative chemical products (such as Calcium Propionate and Sodium Propionate), possessing documented CE alignment and European regulatory certifications is vital.
Our products comply with strict international regulatory frameworks, including European Food Safety Authority (EFSA) regulations for feed additives and REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals). This ensures that the chemical solutions we supply maintain consistent safety profiles and conform to European standards from manufacturing through to downstream applications.
| Property Parameter | Value / Specification | Industrial Relevance |
|---|---|---|
| Chemical Formula | C3H6O2 (CH3CH2COOH) | Standard short-chain carboxylic acid structure. |
| Acid Dissociation Constant (pKa) | 4.88 (at 25°C) | Determines ionization balance, critical for antimicrobial effectiveness. |
| Molecular Weight | 74.08 g/mol | Guides stoichiometric calculations in synthesis processes. |
| Boiling Point | 141.2°C | Defines thermal parameters for distillation and processing. |
| Density | 0.993 g/cm³ | Used in shipping volume calculations and liquid storage designs. |
A recognized supplier of industrial, mining, and food-grade chemical solutions since 2006.
Shandong Pulisi Chemical Co., Ltd. was established in 2006 (Stock Code: 307785). The company focuses on petrochemicals, mining chemicals, feed chemicals, and pharmaceutical chemicals. At present, the company has established long-term and stable partnerships with Fortune Global 500 companies such as China National Petroleum Corporation and Saint-Gobain. We always take customer demand as the core orientation and provide tailored solutions to help customers strengthen their market competitiveness.
The company has passed ISO9001:2015 Quality Management System Certification and German BV Certification, and has been awarded multiple honors such as Foreign-Oriented Economic Enterprise, Alibaba Demonstration Base, and Contribution Enterprise. In 2023, the company successfully went public with stock code: 307785.
The company upholds the corporate culture philosophy of "Customer First, Rapid Response; Striving as the Foundation, Efficient Collaboration; Integrity and Uprightness, Agile Adaptation." We focus on providing compliant and high-quality products and supporting services, and are committed to becoming a long-term and stable partner for customers.
Meanwhile, the company has established mature warehousing and distribution systems at key logistics hubs, including Qingdao Port, Tianjin Port, and Xinjiang border ports (Alashankou, Khorgos). We are able to provide flexible supply solutions according to customer needs to ensure timely order delivery. No matter where customers are located, Shandong Pulisi Chemical will safeguard their business development with professional service systems and efficient response capabilities.
We always adhere to the mission of "creating value for customers and making their products better," based on reputation and guaranteed by service. We look forward to strengthening cooperation with partners to create a future together!
(Strict Statement: Shandong Pulisi has not established branches outside of Shandong Province. If there is any act of impersonating Shandong Pulisi, our company will reserve the right to pursue legal responsibilities.)
A legacy of industrial credibility and verified compliance on a global scale.
An in-depth analysis of the economic factors driving the propionic acid and derivatives market.
The global propionic acid market is experiencing steady growth, driven primarily by the rising demand for animal feed preservatives, grain preservation systems, and food preservatives. Due to the high antimicrobial activity of propionic acid under mildly acidic conditions, it is widely utilized to prevent spoilage and extend shelf-life. This demand is further supported by the growing animal protein consumption worldwide, which requires biosecure and contamination-free feed ingredients.
Suppliers are also focusing on optimizing logistics routes. Developing robust warehousing networks near key international ports allows manufacturers to offer reliable shipping windows to regions in Europe, the Americas, and Southeast Asia, mitigating logistics challenges.
Traditionally, industrial propionic acid is synthesized via chemical processes, such as the Reppe reaction (using ethylene, carbon monoxide, and water in the presence of metal catalysts) or the oxidation of propionaldehyde. However, modern environmental regulations are driving interest toward renewable biological pathways.
Biochemical engineering researchers are focused on optimizing microbial fermentation processes using strains like Propionibacterium acidipropionici. By utilizing agricultural residues, wood hydrolysates, or glycerol as carbon feedstocks, bio-based propionic acid presents a viable path to reduce the industry's carbon footprint.
Tracing the evolution of chemical synthesis technologies and future projections.
Optimizing catalysis technologies and distillation recovery columns to reduce energy consumption in commercial production facilities. Implementing real-time sensors to monitor parameters like pKa variations and pH levels in production systems.
Scaling up municipal and industrial biowaste fermentation methods to generate bio-propionate products. Aligning these processes with international standards to ensure product quality remains consistent with traditional petrochemical routes.
Deploying advanced carbon-capture technologies to utilize waste CO2 as a carbon source for microbial synthesis. Achieving a fully circular production cycle for propionic acid and related salts.
Our quality control systems are certified by leading global compliance bodies.
Connecting with industry partners globally to deliver reliable chemical raw material supply solutions.
Since its establishment in 2006, the company has always adhered to the core corporate philosophy of "industrial, mining, and chemical raw material supply service provider", and is committed to becoming a leading global supplier of chemical raw materials. We adhere to the strategic orientation of "focusing on the development of quality chemical industry", which is not only reflected in our unremitting pursuit of product quality, but also in our continuous investment in technological innovation and service optimization. We are well aware that sustainable development is the source of vitality for enterprises, so the company attaches great importance to environmental protection and social responsibility, striving to promote economic development while safeguarding our shared blue sky and green space. We will continue to uphold our original intention, enhance our research and development capabilities, optimize supply chain management, and further enhance our core competitiveness. We look forward to working together with global partners to create a more brilliant tomorrow in the chemical industry!
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