Overview
The transparent reaction flask is a fundamental piece of laboratory glassware designed for conducting chemical reactions under controlled conditions. Its primary purpose is to provide a clear view of the reaction mixture, enabling researchers to monitor changes in color, phase, or precipitation without interrupting the process. These flasks are typically manufactured from high-quality borosilicate glass, which offers excellent resistance to thermal stress and chemical corrosion. They come in various configurations, such as round-bottom, flat-bottom, or multi-neck designs, each suited to specific experimental requirements. Standard sizes range from 50 mL to 5 L, accommodating different reaction scales.
Physical and Chemical Properties
Transparent reaction flasks exhibit several critical properties that make them indispensable in laboratory settings. The borosilicate glass construction ensures a high melting point (approximately 820°C) and low thermal expansion coefficient, minimizing the risk of cracking during rapid temperature changes. These vessels are chemically inert to most acids, bases, and organic solvents, though hydrofluoric acid and strong alkalis at high temperatures can cause etching. The glass transparency allows for UV-visible spectroscopy monitoring when equipped with appropriate adapters. Standard wall thickness provides durability while maintaining optimal heat transfer during heating or cooling processes.
Main Applications
Transparent reaction flasks serve multiple functions across chemical and pharmaceutical laboratories. They are primarily used for organic synthesis, where researchers need to observe reaction progress or color changes indicative of intermediate formations. In distillation setups, these flasks function as boiling vessels or receiving containers. Their transparency is particularly valuable in photochemical reactions where light penetration is essential. Additional applications include crystallization processes, solvent evaporation, and small-scale pilot reactions in industrial research and development departments.
Safety and Storage
Proper handling of transparent reaction flasks is crucial to prevent accidents and ensure longevity. Always inspect glassware for cracks or chips before use, as compromised integrity can lead to sudden failure under vacuum or pressure. Store flasks in dedicated racks or padded containers to avoid impact damage. When heating, use appropriate heat sources (oil baths, heating mantles) rather than direct flame to prevent thermal shock. For highly exothermic reactions, consider using protective sleeves or working behind safety shields. Clean with compatible solvents and avoid abrasive scrubbers that might scratch the glass surface.
B2B Procurement Guide
When sourcing transparent reaction flasks in bulk for laboratory or industrial use, several factors warrant consideration. Prioritize suppliers who provide certified borosilicate glass (e.g., Schott Duran or Pyrex equivalents) with proper documentation of thermal and chemical resistance properties. Evaluate joint standardization (typically 14/20, 19/22, or 24/29) to ensure compatibility with existing glassware systems. For specialized applications, inquire about custom modifications like additional ports or reinforced walls. Lead times for large orders (100+ units) typically range from 2-6 weeks depending on specifications. Many manufacturers offer volume discounts for recurring orders above certain thresholds.
Related Manufacturers
- 主营：前驱体源瓶、实验室精馏装置、减压蒸馏装置、小试精馏装置
- 主营：石英晶圆片、高温高压窗口片、蓝宝石晶圆片、石英烧瓶、光催化反应器、反应釜、锥形瓶、蒸馏瓶、圆底烧瓶、石英器皿、密度计、螺旋管、比色皿、砂芯、投料杯、半导体治具、石英坩埚、激光保护镜片、镀膜片、激光腔体、研磨板、压条、UV镀膜片、烧杯、酶标板
- 主营：pfa镊子、pfa烧杯、酸制备、反应瓶、反应釜、滴加瓶、pfa容量瓶、消解罐、加热杯、离心管、消解仪、四氟筛、清洗架、样罐60ml、gl32小口、sc60微波、pp比色管、pfa消解管、消解内罐、减压蒸馏、塑料烧杯、乙烯量筒、乙烯方盘、乙烯烧杯、分液漏斗
- 主营：移液器、过滤网、记号笔、离心瓶、细胞培养瓶、试剂瓶、诊断瓶、蓝盖瓶、容量瓶、过滤器、培养皿、降温盒、冷却盒、聚乙烯、存储板、热封膜、滤膜盖、聚丙烯、低吸附、冻存盒、真空泵、离心管、样品管、吸头
- 主营：夹套反应器、玻璃量筒、液体装量
- 主营：干燥箱、振荡器、水分测试仪、水热合成反应釜、高温电阻炉、数显恒温烘箱
- 主营：万能试验机、压力试验机、养护室控制仪、圆底烧瓶、养护箱、试模、沥青延伸仪、抗渗仪、固结仪、多功能电动击实、电热鼓风干燥箱、水泥胶砂搅拌机、钢筋弯曲试验机、混凝土搅拌机、砂浆搅拌机、高低温试验机、防水卷材不透水仪、防水卷材搭接缝不透水、陶瓷砖吸水率测定仪、陶瓷砖抗折试验机、水泥压蒸釜
- 主营：除尘器、除尘滤筒、快拆滤筒、三口烧瓶、粉尘滤芯、除尘滤芯、激光切割机、粉尘加湿机、双轴搅拌机、过滤器滤芯、加湿搅拌机、混凝土拌k料、五层烧结滤芯、折叠滤芯过滤器、空气粉尘过滤器
- 主营：微波消解罐、酸纯化器、氟化氢蒸馏装置、PFA瓶、A级PFA容量瓶、PFA反应瓶、PTFE反应釜、石墨防腐加热板、晶圆清洗花篮、PFA清洗槽浸泡酸缸、聚四氟乙烯方槽、PFA过滤柱树脂柱、PFA枪头、布氏漏斗抽滤装置、PFA溶样罐、PFA烧杯、PFA离心管、赶酸仪、微波消解仪、石墨消解仪