Tag Chemical Safety

Safety experts and company personnel from Junyuan Petroleum Group gather around a large conference table for a formal safety inspection meeting, with red and blue uniformed teams seated on opposite sides.

Junyuan Petroleum Group Successfully Completes Second-Half Safety Production Diagnostic Inspection

Safety experts and company personnel from Junyuan Petroleum Group gather around a large conference table for a formal safety inspection meeting, with red and blue uniformed teams seated on opposite sides.
Junyuan Petroleum Group Successfully Completes Second-Half Safety Production Diagnostic Inspection
December 4, 2025

To strengthen year-end safety risk prevention and reinforce winter safety defenses, Junyuan Petroleum Group commissioned Shandong Chenhui Safety Technology Service Co., Ltd. to organize four safety experts to conduct a second-half safety production diagnostic inspection on November 14. Participants included Deputy General Manager and Safety Director Qiao Huijie, Deputy General Manager and Plant Director Wei Fuchang, Chief Engineer Jiang, Deputy Head of the Equipment Department Sun Peisheng, as well as workshop supervisors, dedicated safety officers, and safety documentation personnel.
Following the guidelines of the Implementation Opinions on Strengthening Enterprise Safety Production Diagnostics issued by the Shandong Provincial Work Safety Committee, and the Winter Year-End Safety Risk Prevention Guide for Hazardous Chemical Enterprises in Shandong Province, the expert team conducted a thorough inspection by reviewing documentation, examining on-site conditions, and evaluating execution methods. Junyuan’s inspection team responded actively and collaborated efficiently to ensure a safe and orderly inspection process.
During the feedback session, the experts emphasized the need for the company to further refine its safety responsibility lists, ensuring vertical accountability from management to operational roles. They recommended establishing a winter-specific risk identification mechanism—such as anti-freeze, anti-slip, and static electricity control—and implementing tiered risk management measures. They also stressed the importance of applying the “Five Fixes” principle for hazard rectification to ensure closed-loop resolution.
Qiao Huijie stated that the company will address each issue raised by the experts with targeted corrective actions and maintain a closed-loop rectification ledger. He instructed all workshops to intensify efforts during the “100-Day Winter Safety Campaign,” focusing on identifying hazards, plugging loopholes, and controlling risks. This includes technical support, maintenance, and emergency response readiness to eliminate hidden dangers, address weaknesses, and ensure a stable safety production environment throughout the winter.
Source: Junyuan Petroleum Group Safety Management Department

Laboratory bottles labeled "n-Hexane" and "Hexane" with glassware on a white surface.

FAQ: n-Hexane vs Hexane – Definitions, Properties, and Compliance Notes

n-Hexane vs Hexane

Laboratory bottles labeled "n-Hexane" and "Hexane" with glassware on a white surface.
Visual comparison of n-Hexane and Hexane in a laboratory setting, highlighting their distinction in chemical labeling and usage.

n-Hexane vs Hexane

What is the difference between hexane and n-Hexane?

Hexane is a general term for all structural isomers with the molecular formula C6H14. n-Hexane is the straight-chain isomer, consisting of six carbon atoms connected in a continuous chain.

Why are the terms sometimes used interchangeably?

In industry, “hexane” often refers to a mixture of isomers, usually containing a high proportion of n-Hexane. In scientific, contractual, or regulatory documents, “n-Hexane” is used to specify the exact compound and avoid ambiguity.

Do they have different physical properties?

n-Hexane has a boiling point of approximately 69 °C and a relatively narrow property range. Hexane mixtures have a broader boiling range, depending on the proportion of branched isomers.

How are they used in practice?

Hexane mixtures are commonly used in gasoline blending, solvents, adhesives, and cleaning agents. n-Hexane (pure) is widely used in vegetable oil extraction, laboratory solvents, and industrial cleaning.

How should they be specified in contracts or technical documents?

Use “n-Hexane” when referring to the straight-chain compound. Use “hexane” when referring to commercial solvent mixtures, but always include a specification sheet or certificate of analysis showing isomer composition. For clarity, include CAS number, purity level, and regulatory references where applicable.

Key Takeaway

Hexane is the umbrella term for all C6H14 isomers. n-Hexane is the straight-chain isomer, most relevant in industrial and regulatory contexts. Always distinguish between the two in technical or legal documents to ensure precision and compliance.