Title:
AQUEOUS HYDROGEN PEROXIDE SOLUTION OF EXCELLENT STABILITY
Document Type and Number:
WIPO Patent Application WO/2010/073976
Kind Code:
A1
Abstract:
Disclosed is an aqueous hydrogen peroxide solution of excellent stability that can reduce the pharmaceutical preparation load during in situ purification of soil and/or ground water that has been contaminated with chemical substances. An aqueous hydrogen peroxide solution (favorable concentration: 25‑45 wt%) comprising methyl glycine diacetic acid (favorable concentration: 0.1‑5 wt%) and phosphoric acid (favorable concentration: 0.1-10 wt%) and having a pH of 2.5‑5 is prepared and is used as stock solution or diluted and used for purifying soil and/or groundwater that has been contaminated with chemical substances.
Inventors:
KIMIDUKA Kenichi (Inc. Tokyo Research Laboratory, 1-1, Niijuku 6-chome, Katsushika-k, Tokyo 51, 〒1250051, JP)
君塚 健一 (〒51 東京都葛飾区新宿６丁目１番１号 三菱瓦斯化学株式会社東京研究所内 Tokyo, 〒1250051, JP)
YOSHIOKA Shigeyasu (Inc. Tokyo Research Laboratory, 1-1, Niijuku 6-chome, Katsushika-k, Tokyo 51, 〒1250051, JP)
君塚 健一 (〒51 東京都葛飾区新宿６丁目１番１号 三菱瓦斯化学株式会社東京研究所内 Tokyo, 〒1250051, JP)
YOSHIOKA Shigeyasu (Inc. Tokyo Research Laboratory, 1-1, Niijuku 6-chome, Katsushika-k, Tokyo 51, 〒1250051, JP)
Application Number:
JP2009/071096
Publication Date:
July 01, 2010
Filing Date:
December 18, 2009
Export Citation:
Assignee:
Mitsubishi Gas Chemical Company, Inc. (5-2 Marunouchi 2-chome, Chiyoda-ku Tokyo, 24, 〒1008324, JP)
三菱瓦斯化学株式会社 (〒24 東京都千代田区丸の内二丁目５番２号 Tokyo, 〒1008324, JP)
KIMIDUKA Kenichi (Inc. Tokyo Research Laboratory, 1-1, Niijuku 6-chome, Katsushika-k, Tokyo 51, 〒1250051, JP)
君塚 健一 (〒51 東京都葛飾区新宿６丁目１番１号 三菱瓦斯化学株式会社東京研究所内 Tokyo, 〒1250051, JP)
三菱瓦斯化学株式会社 (〒24 東京都千代田区丸の内二丁目５番２号 Tokyo, 〒1008324, JP)
KIMIDUKA Kenichi (Inc. Tokyo Research Laboratory, 1-1, Niijuku 6-chome, Katsushika-k, Tokyo 51, 〒1250051, JP)
君塚 健一 (〒51 東京都葛飾区新宿６丁目１番１号 三菱瓦斯化学株式会社東京研究所内 Tokyo, 〒1250051, JP)
International Classes:
B09C1/02; A62D3/38; B09C1/08; C01B15/037; C02F1/72; C09K3/00; C09K17/42; A62D101/22; A62D101/45; C09K101/00
Attorney, Agent or Firm:
TAKANO Mifune (Miyamasuzaka-Toho-Estate 602, 1-12-12 Shibuya, Shibuya-k, Tokyo 02, 〒1500002, JP)
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