High hygroscopic calcium oxide "QC2-S"
From water absorption to heat generation! White microparticles sharpen the needs of industry.
"QC2-S" is a highly hygroscopic calcium oxide with small particles and rapid reaction properties. Compared to our conventional products, it has a D50 of 3.2μm, making it a fine particle that supports a wide range of applications, including water absorption and heat generation functions. We also handle calcium oxide that meets food additive standards and pharmaceutical use. The content is 20kg, and the packaging consists of an inner bag made of aluminum and an outer box made of cardboard. 【Features】 ■ Small particles with rapid reaction ■ D50: 3.2μm, Dmax: less than 23.5μm ■ Supports water absorption and heat generation functions *For more details, please download the PDF or feel free to contact us.
basic information
【Particle Size Distribution Analysis Example】 ■D10: 1.1μm ■D50: 3.2μm ■Dmax: Less than 23.5μm *For more details, please download the PDF or feel free to contact us.
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Applications/Examples of results
【Applications】 <Water Absorption Function> ■Desiccant for moisture in rubber and resin: Prevents molding defects ■Moisture absorption performance provided by resin additives: Hygroscopic films, etc. <Chemical Industry Raw Materials> ■Ceramics, glass, and more <Heating Function> ■Heating material using exothermic reaction with water: Heating food *For more details, please download the PDF or feel free to contact us.
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Notice of Participation in the 2026 New Environment Exhibition
Our company will be exhibiting at the "NEW Environmental Exhibition" held at Tokyo Big Sight from May 20 (Wednesday) to May 22 (Friday), 2026. https://joho-kochi.or.jp/lp/n-expo.php 【Exhibited Products】 - Calcium hydroxide for slurry - Quick-acting, high-hygroscopic calcium oxide - Zinc oxide (active zinc oxide) - Simonkolleite When you visit, please be sure to stop by our booth (East Hall 7 H702). We sincerely look forward to your visit.
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Notice of Participation in the 44th "Health Expo @ Tokyo Big Sight" from February 25 (Wednesday) to February 27 (Friday), 2026.
Our company exhibited at the "44th Health Expo," one of Japan's largest BtoB exhibitions for the health industry, held at Tokyo Big Sight from February 25 (Wednesday) to 27 (Friday), 2026. At our booth (6E-11), we showcased a variety of upcycled materials derived from underutilized resources nurtured by nature, as well as high-quality organic ingredients, under the theme of "Proposals for Materials from Kochi Prefecture." With keywords like "upcycle," "sustainable," and "organic," we presented materials that have grown alongside the natural environment of Kochi.
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Our company offers a variety of products using lime, starting from slaked lime for traditional building materials, to ultra-pure calcium oxide and calcium hydroxide for medical and reagent use, special metal oxides, and pesticide active ingredients. Additionally, we are engaged in the development of agricultural support systems aimed at revitalizing the agricultural sector and contributing to the community through lime products, as well as supporting the breeding business that assists in the cultivation and sale of crops.