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Acido Propionico (commonly known in global trade as Propionic Acid, CAS Registry Number 79-09-4) is a short-chain carboxylic acid with the chemical formula CH3CH2COOH. It represents a vital chemical building block and preservative used heavily in livestock feed formulations, human food preservation, pharmaceuticals, and agricultural applications. When procuring this agent, understanding the pH-dependent dissociation behavior is critical to optimizing its biological and chemical reactivity.
Propionic acid exhibits a pKa of 4.88. This thermodynamic constant dictates that in aqueous solutions with a pH below 4.88, the compound remains predominantly in its non-dissociated (undissociated) state. The undissociated form of Acido Propionico is lipid-soluble, allowing it to easily penetrate the lipid bilayer of cellular membranes in molds, yeasts, and select pathogenic bacteria (such as Salmonella and E. coli). Once inside the cytoplasm of the targeted cell (where pH is maintained around 7.0), the acid dissociates, releasing protons (H+) and propionate ions (CH3CH2COO-), inducing structural metabolic disruption and cellular cell death.
For optimal efficacy in preservation systems, maintaining a tight control on the pH environment is critical. In poultry and animal feed, treating raw materials with high-purity propionic acid ensures that the localized pH drops sufficiently to preserve structural nutritional values and prevent toxic mold growth during prolonged storage cycles.
| Technical Specification Parameter | High-Purity Technical Grade | Feed / Food Grade Standard | Test Methodology Reference |
|---|---|---|---|
| Propionic Acid Assay | ≥ 99.5% min | ≥ 99.6% min | Gas Chromatography (GC) |
| Water Content | ≤ 0.15% max | ≤ 0.10% max | Karl Fischer Titration |
| Appearance | Clear, colorless liquid | Clear, colorless liquid | Visual Assessment |
| pH (10% aqueous solution @ 20°C) | 2.20 - 2.40 | 2.10 - 2.30 | Electrometric pH Meter |
| Heavy Metals (as Pb) | N/A | ≤ 2 ppm max | ICP-MS Analysis |
The global logistics landscape for Acido Propionico is undergoing massive structural shifts. Procurement managers in multinational enterprises are increasingly looking beyond simple cost-per-ton metrics. Today’s supply chain managers focus on regional regulatory compliance, chemical stability, low water content, and consistent logistics pathways.
Established in 2006 (Stock Code: 307785), Shandong Pulisi Chemical Co., Ltd. has developed into a premier petrochemical, mining, feed, and pharmaceutical chemical producer. We have established long-term and stable partnerships with Fortune Global 500 companies such as China National Petroleum Corporation (CNPC) and Saint-Gobain. By centering our operations around customized solutions, we help our clients secure sustained competitive advantages in their respective markets.
Our quality management protocols have passed ISO9001:2015 Quality Management System Certification and German BV (Bureau Veritas) Certification. We have also earned numerous distinctions as a Foreign-Oriented Economic Enterprise, Alibaba Demonstration Base, and Contribution Enterprise. In 2023, the company successfully listed on the public market under stock code: 307785.
The deployment of Acido Propionico as a biological acidifier and chemical intermediate is categorized into four primary macroeconomic pillars. Our manufacturing lines adapt process controls to align with the safety parameters demanded by these industries:
Modern animal husbandry demands heavy structural feed biosecurity. Microbial degradation of stored grains reduces metabolic starch efficiency and risks mycotoxin production. Implementing propionic acid solutions controls the micro-biological ecosystem. By maintaining an acidic pH within feed mills, manufacturers reduce total plate counts of molds and yeast. In the animal’s digestive tract, the acid optimizes digestion parameters and controls intestinal pathogenic growth.
Acido Propionico serves as the chemical base for producing calcium propionate, sodium propionate, and zinc propionate. These salts are the standard preservatives for bakery and cheese products globally. It is also processed during the esterification step of Cellulose Acetate Propionate (CAP) synthesis, which yields high-performance polymers with low moisture absorption and excellent mechanical strength.
In textile processing and leather tanning, precise pH adjustment is necessary to achieve uniform dye absorption and structural preservation of animal hides. Utilizing propionic acid provides a buffered, mild acidic reaction profile compared to harsh mineral acids, ensuring fabric tensile strength is maintained while reducing processing wastewater pollutants.
At Shandong Pulisi, we operate mature warehousing and distribution hubs at key maritime and overland hubs, including Qingdao Port, Tianjin Port, and the crucial western rail terminals of Xinjiang (Alashankou and Hhorgos). These logistics hubs ensure secure handling of corrosive liquid products, offering custom drum packaging, intermediate bulk containers (IBCs), or bulk ISO tankers to customers globally.
High-purity salts manufactured in compliance with international environmental and product standards.
Our high-quality products are optimized across primary global markets to ensure maximum utility.
The manufacturing roadmap of Acido Propionico points toward carbon reduction and enhanced purity profiles. Traditionally generated through the chemical synthesis of petrochemical precursors—specifically the carbonylation of ethylene—our forward-looking technologies explore both biochemical fermentation pathways and advanced catalytic recovery mechanisms.
By utilizing specialized microbial species (such as Propionibacterium acidipropionici) acting on glucose or waste glycerol streams, the bio-based production route yields high-grade propionic acid with a minimized carbon footprint. This bioprocess aligns with the sustainability strategies of premium food ingredients and animal nutrition customers globally.
Implementing automated process control systems in distillation columns reduces low-boiling volatile fractions. This refinement ensures that our propionic acid holds lower moisture content, which prevents steel pipe corroding during logistics operations and maintains consistency in downstream chemical processing.
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Exporting to more than 100 countries and regions with customs compliance and documentation support.
More than 20 years of chemical export experience, maintaining active partnerships with over 1,000 global enterprises.
ISO 9001:2015 Certification, SGS audit clearance, K-REACH pre-registration, and FAMI-QS certification for feed logistics.
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Strategic warehouses near Qingdao Port and Tianjin Port ensure immediate vessel loading and dispatch.
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