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pH试纸 Roll (4.8 m) with colour scale pH 5.5 - 6.0 - 6.5 - 7.0 - 7.5 - 8.0 - 8.5 - 9.0 Neutralit®
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pH试纸 non-bleeding pH 5.0 - 5.5 - 6.0 - 6.5 - 7.0 - 7.5 - 8.0 - 8.5 - 9.0 - 9.5 - 10 0 Neutralit®
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指示剂溶液 Ph 4.0-10.0 通用指示剂,配色卡 pH 4.0 - 4.5 - 5.0 - 5.5 - 6.0 - 6.5 - 7.0 - 7.5 - 8.0 - 8.5 - 9.0 - 9.5 - 10.0
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指示剂溶液 Ph 4.0-10.0 通用指示剂,配色卡 pH 4.0 - 4.5 - 5.0 - 5.5 - 6.0 - 6.5 - 7.0 - 7.5 - 8.0 - 8.5 - 9.0 - 9.5 - 10.0
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邻苯二酚紫指示剂
at a neutral pH. When the pH is between 2-7 the color may be yellow
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邻苯二酚紫指示剂,115-41-3,0.1%
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- 5.0 - 5.5 - 6.0 - 6.5 - 7.0 - 7.5 - 8.0 - 8.5 - 9.0 Aquamerck®
pH Test Method: colorimetric with colour card and sliding comparator pH 4.5 - 5.0 - 5.5 - 6.0 - 6.5
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间甲酚紫指示剂,2303-01-7,0.4%
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间甲酚紫,2303-01-7,指示剂级
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邻苯二酚紫
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