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Can carbon steel pipes be used when adding dimethyl sulfate dropwise?

2009-03-10View Original

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Can carbon steel pipes be used when adding dimethyl sulfate? Will it react with iron? Since carbon steel pipes rust easily, could dimethyl sulfate decompose due to the rust during addition?
Reply #22009-03-10
I wonder if there will be any problems in actual production? **Relevant regulations are not taken into consideration
Reply #32009-03-10
Use glass tubes or polypropylene for the slow addition of dimethyl sulfate; avoid carbon steel as it tends to discolor. Be careful when adding it to prevent absorption and to protect your eyes.
Reply #42009-03-10
Will it cause dimethyl sulfate to deteriorate? The reaction is methylation
Reply #52009-06-30
Carbon steel pipes are not suitable; stainless steel 304 is acceptable. Our company uses stainless steel pipes
Reply #62009-06-30
Neither steel pipes nor 304 pipes will work; they will corrode. It is best to use PTFE-lined pipes. Dimethyl sulfate hydrolyzes to methanol and methyl bisulfate; it is highly toxic and corrosive, and ordinary stainless steel cannot resist its corrosion

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