Overview
Laboratory flasks are fundamental glassware in chemical labs, designed for tasks like mixing, heating, or storing liquids. Common types include Erlenmeyer flasks for titrations, round-bottom flasks for distillations, and volumetric flasks for precise dilutions. Their design ensures safety and accuracy in experiments. Made primarily from borosilicate glass, these flasks resist thermal shock and chemical corrosion. Plastic variants are available for non-reactive applications. Proper selection depends on the experiment's needs, such as temperature range or chemical compatibility.
Structure and Working Principle
Flasks feature a narrow neck to minimize spills and allow secure stopper placement. Round-bottom flasks distribute heat evenly when heated, while flat-bottomed ones (e.g., Erlenmeyer) stand stably on surfaces. Volumetric flasks have a single graduation mark for exact measurements. The working principle relies on their shape and material properties. For instance, the conical shape of Erlenmeyer flasks facilitates swirling without splashing, and their wide base aids in heat dissipation during reactions.
Key Features
Heat resistance is a standout feature, with borosilicate glass tolerating temperatures up to 400°C. Their transparency allows easy observation of reactions, and markings ensure measurement accuracy. Some flasks include ground glass joints for airtight connections. Plastic flasks, though less heat-resistant, are lightweight and shatterproof, ideal for fieldwork or educational settings. Sterility options (e.g., autoclave-safe glass) cater to biological applications.
Application Areas
Laboratory flasks are ubiquitous in research, pharmaceuticals, and education. Erlenmeyer flasks are used in titrations, while round-bottom flasks are essential for reflux and distillation setups. Volumetric flasks prepare standard solutions in analytical chemistry. Industries like petrochemicals and food testing rely on them for quality control. Their versatility also extends to DIY science projects and environmental testing.
Maintenance and Precautions
Clean flasks thoroughly after use to prevent cross-contamination. Avoid abrupt temperature changes to prevent cracking. Use protective gear (e.g., gloves) when handling hot flasks or corrosive chemicals. Store flasks in padded racks to avoid chips or breaks. Inspect for defects before use, especially in high-pressure or vacuum applications.
B2B Procurement Guide
When sourcing flasks, prioritize suppliers with ISO-certified manufacturing. Bulk purchases (e.g., 50+ units) often reduce costs by 10-20%. Customization options like logos or special graduations may be available. Compare lead times and MOQs (Minimum Order Quantities) across vendors. For specialized needs (e.g., heavy-walled flasks), verify technical specifications with the supplier.
Related Manufacturers
- 主营：玻璃仪器、塑料试剂瓶、广口瓶、实验仪器、实验室仪器、试剂瓶、烧杯、高硼硅培养皿、塑料离心管、塑料吸头、塑料培养皿
- 主营：引风机、通风柜、24v鼓风机、实验室专用风机、离心风机、风机电机、轴流风机、风机配件、防腐风机叶轮、pp防腐塑料风机
- 主营：气相色谱仪、鲁尔接头综合性能测试仪、针管(针)刚/韧性测试仪、三角烧瓶价格、针管流量测试仪、注射器滑动性能测试仪、缝合针切割力测试仪、输液器正/负压泄漏测试仪、输液器流量测试仪、导尿管综合性能测试仪、输尿管支架固定强度测试仪、导管残留真空测试仪、连接牢固度与分离力测试仪、导管正/负压测试仪、导管通畅性测试仪、动力注射件流量与压力测试仪、导丝破裂测试仪、导丝弯曲性能测试仪、鼻氧管综合性能测试仪、呼吸管路气流阻力测试仪、喉罩弯曲性能测试仪、NGI药用撞击器、呼吸模拟器
- 主营：石墨坩埚、粘土碳化硅坩埚、提金剂、活性炭、彩条布、淘金草、活性炭吸附罐、淘金毯、熔炼炉
- 主营：教学仪器、教学用品、玻璃仪器、体育器材、探究实验箱、光学器材、小学科学、教学用标本、通用技术、显微镜、传感器
- 主营：实验仪器、实验室、科教仪器、教学仪器
- 主营：通风柜、鄂式破碎机、提金剂、实验室专用试剂柜、化验室实验台、活性炭吸附罐
- 主营：抹平机、倒角器、鱼鳞机、实验室架子、去皮刀、宰鱼刀、抹光机、水温表、钢缆锁、电瓶锁、手工刨、温度计、锚鱼钩、倒钓钩、驾驶棚、灌浆枪、帐篷灯、紧停钮、万向轮、控制盒、三本钩、挡油板、木工刨、钓鱼包、填缝枪、鲟鱼钩
- 主营：倒角器、破窗器、配件包、烧瓶、打草轮、输出线、鱼护袋、测量仪、打钉枪、剥线钳、热电偶、合金钻、放大器、视频线、冰铲刀、音频线、传感器、钓鱼桶、镇流器、手工锯、接线盒、钉箱机、开孔器、春联纸、射钉机、一体桶
- 主营：评估板、热风枪、打磨笔、警示牌、医药箱、隔膜泵、开发板、伸缩杆、氛围灯、电动阀、曲线笔、抽水泵、加湿器、发热芯、污水泵、乳胶漆、调压器、下水器、雾化头、测定仪、调节阀、and量杯、电热炉、电脑板、烧烤炉
- 主营：化学试剂、实验室试剂、实验室耗材、实验仪器、实验耗材、化玻仪器、卡尔费休、化玻
- 主营：路由器、握力表、木工锯、音乐器材、实验桌椅、教学器材、学生实验桌、实验室器材、医药箱、显微镜、拉坯机、教学玩具、科普仪器、乐器玩具、手工锯子、椰子沙球、美术欣赏、教学用具、木工工具、打击乐器、教学仪器、7键口风琴、双筒望远镜、信号发生器、三角铁教具