How much gold concentration should be in the organic phase (dbc) before reduction by oxalic acid solution? Is it effective on purity of gold in reduction step? Define what is the ratio of dbc to oxalic acid solution in this step?

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What are the chemical composition of cast iron grade 20

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How do 304 stainless steel and 316 stainless steel weld to each other? I am hoping my medical device prospect will be able to weld a component made in 316 ss via metal injection molding toa 304 ss tube.

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what is a rate controlling step ? how is it dependent on reaction path ? explain with an example.

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sir.I am OBC candidate,recieved scholarship/freeship during academic year 2011-2012,2012-2013(my yearly income was below 4.5 lakh).my yearly income during academic year 2013-2014 was above 4.5 lakh.should I get scholarship/freeship in academic year 2013-2014 ?

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What is the Difference of ultimate tensile stress of mild steel to ultimate compressive stress ?

0 Answers   NIC,

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Which material is used to made up of electrodes of resistance welding?

0 Answers   NIC,

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How do you classify shapers?

0 Answers   Essar,

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how can i prevent the backfire occurrence in copper shaft furnaces?

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Define what are ceramics?

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Does case harden steel properties detoriates over time? Especially for guns, parts like bolt carrier, the brand new parts has been kept for 10 year and properly oiled. I am worried about its surface hardness to take the blow during firing.

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Why is non-destructive testing necessary?

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