We are committed to using domestically sourced raw materials! Pure domestic citric acid.
Our company manufactures citric acid. Kagoshima is covered by vast shirasu (volcanic ash) land and has been famous as a production area for sweet potatoes since ancient times. Using sweet potatoes sourced from Kagoshima as the raw material, we produce citric acid through fermentation (solid culture) at our factory in Kagoshima Prefecture. Please feel free to contact us if you have any requests. 【Features】 ■ We do not use any overseas raw materials. Please utilize our products that are committed to domestic raw materials. *For more details, please download the PDF or feel free to contact us.
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basic information
**Properties of Citric Acid** ■ Chemical formula: C6H8O7·H2O ■ Molar mass: 210.14 g/mol (monohydrate) ■ Appearance: White crystals ■ Melting point: 100°C (monohydrate) becomes anhydrous upon heating and self-dissolves. ■ Decomposition point: 175°C ■ Solubility in water: 133 g/100 mL (20°C) ■ Acid dissociation constants (pKa): pKa1 = 3.15 pKa2 = 4.77 pKa3 = 6.40 *For more details, please download the PDF or feel free to contact us.*
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Company information
Kyushu Chemical Co., Ltd. was established for the purpose of producing citric acid using a solid-state fermentation method based on sweet potato starch residue developed by the Kagoshima Prefectural Industrial Testing Institute. It has established its position as one of the largest citric acid manufacturers in Japan and continues to this day. Please feel free to contact us if you have any inquiries.