Due to the stringent purity requirements of high-purity (electronic grade) carbon dioxide, which must exceed 99.999% and evenreach parts per billion (PPb) levels for certain impurities, there are extremely high demands on the process design, process control, and analytical accuracy of the equipment. Leveraging over a decade of expertise in food-grade liquid carbon dioxide, BW selects high-quality food-grade liquid carbon dioxide as raw material and employs advanced processes such as physical adsorption and chemical treatment, combined with patented technologies. This approach ensures the stable production of ultra-high-purity (electronic grade) carbon dioxide products with purity exceeding 99.999%. The quality of these products meets the requirements of both the high-purity carbon dioxide standards of Japan's Showa Denko and the national high-purity carbon dioxide standards.
Components
GB/T23938-2009
Shouwa Chemicals (Japan)
San Fu Chemical Co., Ltd. (Taiwan)
Product Test Results
Carbon Dioxide Purity Vol.%
≥99.999
≥99.999
≥99.999
>99.999
Nitrogen Vol. ppm
≤3.0
≤4.0
<≤4.0
<3.0
Argon Vol. ppm
≤1.0
≤1.0
≤1.0
<1.0
Carbon Monoxide Vol. ppm
≤0.5
≤1.0
≤0.5
<0.20
Oil Content Vol. ppm
≤0.05
≤0.05
<0. 05
Volatile Hydrocarbons (Methane) Vol. ppm
≤2.0
≤0.5
≤1.0
<0.50
Moisture Vol. ppm
≤3.0
≤1.0
≤1.0
<1.0
Hydrogen Vol. ppm
≤0.5
≤1.0
≤0.5
<0.50
Total Sulfur (as S) Vol. ppm
≤0.03
<0.03
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