It is a round-bottom flask (with a thick neck) made of soft, easy-to-process glass material.
Round-bottom flasks (wide neck) are available in sizes ranging from 200ml to 1L. H-32: HARIO-32 is a borosilicate glass with a low thermal expansion coefficient, completed after years of research. It is a glass that meets the "Borosilicate Glass-1" standard specified by JIS, known for its excellent chemical durability and heat resistance. It does not contain any heavy metals such as lead, zinc, or cadmium, nor does it use sulfurous acid or antimony, which are commonly used as bubble-reducing agents in regular glass. Due to its low expansion coefficient, it experiences minimal expansion and contraction from heating and rapid cooling, making it a glass material with high heat resistance capable of withstanding a temperature shock of 250 degrees.
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basic information
【Product Lineup】 ○MFTN-200: 200ml → Maximum diameter 81, neck diameter 39, height 119, quantity 48 pieces ○MFTN-300: 300ml → Maximum diameter 93, neck diameter 45, height 134, quantity 48 pieces ○MFTN-500: 500ml → Maximum diameter 109, neck diameter 49, height 158, quantity 30 pieces ○MFTN-1L: 1000ml → Maximum diameter 137, neck diameter 57, height 198, quantity 15 pieces ● For more details, please contact us or download the catalog.
Price information
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Price range
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Delivery Time
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Applications/Examples of results
There is a long history of use in national public offices, research institutes, schools, and manufacturing companies. When heating, please avoid local overheating. When heating substances with low boiling points or flammable materials, please use a water bath. When handling heated glass, always use heat-resistant gloves or specialized tongs to prevent burns. When used under reduced pressure, round-bottom flasks, pear-shaped flasks, and Kjeldahl flasks are used for chemical reaction tests and reduced pressure distillation tests. However, please check for any "scratches," "distortions," or "uneven thickness" before use. Avoid using flat-bottomed flasks or triangular flasks, as their structural strength is weak.
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Company information
We are a company specialized in supplying "transparent heat-resistant glass material that is resistant to corrosion and heat," manufactured by HARIO. Leveraging the know-how we have cultivated since HARIO's founding regarding heat-resistant glass, we propose heat-resistant glass materials that are "safe and secure," and have "high durability against scientific corrosion, strong acids, alkalis, and thermal applications." Our production facility is located in Koga City, Ibaraki Prefecture, and within Japan, we offer the best cost performance in the industry and can achieve short delivery times. Additionally, we strive to build long-lasting and deep business relationships so that our clients can easily consult with us anytime after delivery.
