Round bottom flask (wide neck / uncoated) made of heat-resistant glass.
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 expansion coefficient, completed after years of research. It is a glass that meets the "Borosilicate Glass-1" standard specified by JIS, exhibiting 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 small expansion coefficient, it has minimal expansion and contraction from heating and rapid cooling, making it a glass material with high heat resistance that can withstand a temperature shock of 250 degrees.
- Company：ハリオサイエンス
- Price：Less than 10,000 yen
