The mouth is designed with a durable, thick rim. It can be widely used for measuring, stirring, and culturing.
There are flat-bottom flasks available in sizes ranging from 200ml to 5L. 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, excelling in 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 agents in regular glass. Due to its small expansion coefficient, it has high heat resistance, capable of withstanding a temperature shock of 250 degrees with minimal expansion and contraction from heating and rapid cooling.
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basic information
HARIO's heat-resistant glass has been produced since 1972 in a "smokeless factory." This was made possible by the successful development of Japan's first direct electric melting furnace for glass, a unique technology that melts glass raw materials using electricity instead of heavy oil. This changed the common perception of glass factories at the time, which were known for severe smoke and dust pollution, and created a workplace environment that considers both the surrounding environment and the employees working inside the factory.
Price range
P1
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.
Line up(7)
Model number | overview |
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HF-200 SCI | Flat-bottom flask 200ml made of heat-resistant glass |
HF-300 SCI | Flat-bottom flask 300ml made of heat-resistant glass |
HF-500 SCI | Flat-bottom flask 500ml made of heat-resistant glass |
HF-1L SCI | Flat-bottom flask 1000ml made of heat-resistant glass |
HF-2L SCI | Flat-bottom flask 2000ml made of heat-resistant glass |
HF-3L SCI | Flat-bottom flask 3000ml made of heat-resistant glass |
HF-5L SCI | Flat-bottom flask 5000ml made of heat-resistant glass |
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Company information
We are a company specialized in supplying "transparent, corrosion-resistant, and heat-resistant glass materials" manufactured by HARIO. Utilizing 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 we offer the best cost performance in the industry within Japan, achieving 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.