Product Description
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Merck Chemicals (Shanghai) Co., Ltd. is the subsidiary of the globally operating group Merck KGaA, Darmstadt (Germany) and provides Chinese market with high quality life science and chemical products and services
The contact persons for the specific product groups of the Chemicals businesses are listed on the website of Merck Group in China.
AI Product Description
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Petroleum benzine, often referred to simply as petroleum ether or light naphtha in industrial contexts, is a highly volatile, flammable mixture of hydrocarbons derived from the fractional distillation of crude oil. Typically boiling between 30°C and 60°C or 60°C and 80°C depending on the grade, this colorless liquid serves as a powerful solvent widely utilized across various sectors including laboratories, manufacturing, and cleaning industries. Its primary application lies in its ability to dissolve non-polar substances such as oils, fats, waxes, resins, and rubber without affecting polar compounds like water or sugars. In research laboratories, it is frequently employed for extraction processes, particularly in isolating natural products from plant materials, and as a carrier fluid in chromatography. Industrially, it acts as an efficient degreasing agent for metal parts prior to painting or coating, ensuring surfaces are free of contaminants that could compromise adhesion. It is also used in the production of adhesives, paints, and varnishes as a thinning agent.
Despite its utility, handling petroleum benzine requires strict adherence to safety protocols due to its extreme flammability and health hazards. The vapors are heavier than air and can travel significant distances to ignition sources, posing a severe fire and explosion risk; therefore, storage must occur in well-ventilated areas away from heat, sparks, and open flames. Personal protective equipment (PPE) including chemical-resistant gloves, goggles, and respirators is essential during use to prevent skin contact, eye irritation, and inhalation of toxic fumes which can cause dizziness, nausea, or central nervous system depression. Prolonged exposure may lead to dermatitis or more serious neurological effects. Furthermore, environmental precautions are necessary as improper disposal can contaminate soil and water sources. Users should always consult the specific Safety Data Sheet (SDS) for the exact grade being handled, as flash points and toxicity levels vary slightly with composition. Proper grounding of containers during transfer prevents static discharge, further mitigating fire risks associated with this indispensable yet hazardous solvent.