Acetonitrile (formula: CH₃CN), also classified as methyl cyanide, is a vital polar aprotic solvent widely integrated in organic synthesis, battery electrolytes, and high-performance liquid chromatography (HPLC). The physical parameters of acetonitrile, specifically the acetonitrile boiling point of 81.6 °C (354.8 K) at 101.3 kPa, represent more than just a constant value; they dictate the purification design, energy efficiency, safety operations, and high-precision applications in modern chemical processing.
Understanding the exact thermodynamics of acetonitrile is essential for engineering accurate fractional distillation towers and vapor recovery systems. The key baseline properties include:
| Thermophysical Parameter | Metric Value | Significance in Industrial OEM Refining |
|---|---|---|
| Normal Boiling Point | 81.6 °C | Ensures stable gas phase separation in multi-stage fractionation towers. |
| Latent Heat of Vaporization | 33.2 kJ/mol | Determines structural dimensions of reboilers and condensers. |
| Critical Temperature | 272.4 °C | Key limit for supercritical fluid chromatography applications. |
| Vapor Pressure (at 20°C) | 9.7 kPa | Guides safety metrics for storage tank venting and pressure design. |
| Autoignition Temperature | 524 °C | Directs hazardous zone classifications for automated production lines. |
Across the international chemical landscape, the demand for pure-cut acetonitrile is highly correlated with the rise in advanced biopharmaceutical production and the expansion of the green energy lithium-ion battery sector. As a leading exporter, Shandong Pulisi Chemical Co., Ltd. monitors the critical constraints global procurement officers prioritize:
In HPLC and UHPLC analysis, even trace-level organic impurities can block sensor nodes or yield fake baseline noise. Standard distillation is insufficient due to acetonitrile's tendency to retain micro-levels of water and acrylonitrile precursors. Global labs mandate an extremely high standard of UV transmittance (>90% at 200 nm) and low residue on evaporation. Controlling thermal purification pathways near the precise 81.6 °C boiling point allows us to consistently meet and exceed these performance benchmarks.
With a high dielectric constant and low viscosity, acetonitrile-based electrolytes allow for superior ion transport rates in ultracapacitors and specific low-temperature lithium batteries. However, moisture content must be held below 10-30 ppm to prevent hydrofluoric acid creation in lithium salt complexes. This necessitates advanced extractive distillation systems to bypass the water-acetonitrile azeotropic limit of 76.5 °C.
In active pharmaceutical ingredient (API) synthesis, purification requires recrystallization and solvent exchange steps. Controlling the boiling point allows engineers to strip the solvent efficiently without degrading heat-sensitive pharmaceutical molecules under mild vacuum conditions.
Operating out of Zibo, Shandong, our factory embodies the transition to Factory 4.0 manufacturing systems. By merging continuous process control with automated DCS (Distributed Control Systems), Shandong Pulisi Chemical Co., Ltd. maintains robust refining stability, delivering reliable products batch after batch.
Real-time sensors monitor temperature variance along fractionation towers to within 0.1 °C, preserving the target boiling range and isolating impurities with pinpoint accuracy.
Integrated molecular sieve systems and pressure-swing distillation bypass traditional chemical drying agents, delivering high purity without compromising safety or product integrity.
Strategic warehousing hubs at Qingdao Port, Tianjin Port, and Xinjiang border crossings (Alashankou, Khorgos) provide fast transit and lower shipping rates worldwide.
Depending on region-specific regulatory frameworks and target industries, the application profile of high-purity acetonitrile shifts:
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.)
Our strict adherence to international quality protocols guarantees that every shipment is backed by verified regulatory compliance certificates.
Since our establishment in 2006, our company has remained dedicated to the core philosophy of serving as a premium "industrial, mining, and chemical raw material supply service provider", aiming to rank among the top chemical suppliers worldwide. We focus on high-quality chemical development, which shows in our strict focus on product purity, continuous R&D investment, and active service design. Understanding that sustainable manufacturing is the foundation of growth, we integrate ecological precautions into our operational steps, balancing production with environmental safety. We look forward to working with global partners to secure clean supply lines.
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