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HPLC reagents
How to configure PH amortize solution
Measure to general PH, the PH amortize reagent that can use whole set (can make up 250ml) , when making up solution, should use go ionic water, and beforehand boil 15-30 minute, with the carbon dioxide with deliquescent eliminate. Cut...
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Reagent reachs his to take with the method
The classification of 1 reagent According to the purity of chemical reagents, by how many of matter content, home is chemical reagents cent 4 class: One class reagent (super grade pure reagent) express with G.R normally. 2 class reagent...
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Dangerous reagent reachs his to save
Dangerous sex reagent or chemical danger are tasted, have can combustion, explosion, harm, corrode or the risky nature such as radioactivity. In be chafed, shake, bump, osculatory fire cause, treat water or be affected with damp be aff...
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Chemical reagents management and safety deposit a condition
Chemical reagents great majority has certain noxiousness and dangerous sex. Strengthen management to chemical reagents, it is the need that assures to analyse result quality not only, also be the need that ensures people life property...
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The relevant knowledge of methanol introduces
1.Manage changes character: (1) structural formula CH4O(2) opposite element quality 32(3) structural style CH3OH(4) the exterior and character: Colorless and clear liquid, stimulating odour. (5) melting point (℃ ) : - 97.8(6) boiling point...
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The lab is commonly used store the configuration parameter of fluid
1. Solution of amine of 30% propylene acyl[make up a method] amine of 29g propylene acyl and 1g N, n ' - inferior in the water that dissolve of amine of acyl of Jia Shuangbing Xi is 60ml at total volume. Heat to dissolve to 37 ℃ , fill add...
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Use at organic liquid stronger go water agent
Reagent With the compound that water forms Note Na NaOH, H2 Be used at hydrocarbon and aether go water is very outstanding, must not use at person and bittern acting hydrocarbon...
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Of 4 hydrogen furan rarefied
Boiling point 67 ℃ (64.5 ℃ ) , refractive index 1.405 0, relative to density 0.889 2. 4 hydrogen furan and water can mix dissolve, often contain a few moisture to had reached oxide. If want to be made anhydrous 4 hydrogen furan,...
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