What is an effective means of removing silicon from aluminum?
Submitted by: AdministratorSilicon is well known for its chemical inertness, (i.e. it tends not to react with many other chemicals). Depending on what type of silicon you are dealing with, this may or may not be easy to solve. If the silicon is from a lubricant, it is probably the graphitic form, which is soluble in a strong combination of nitric, and hydrofluoric acids, neither of which I would recommend for you to use...nor hydrofluoric acid is not easy to come by. If it is silicon from an acidic form (probably any other form other than a lubricant), you should try ammonia. In either case, leave your acetone at home...it will NEVER work! UPDATE: An ammonia solution worked very well in this case
Submitted by: Administrator
Submitted by: Administrator
Read Online Chemical Engineering Job Interview Questions And Answers
Top Chemical Engineering Questions
☺ | What is a good estimate for the absolute roughness for epoxy lined carbon steel pipe? |
☺ | For a heat exchanger, will the overall heat transfer coefficient increase along with an increase in LMTD (log mean temperature difference) around the unit? |
☺ | What is the method of determining maximum differential pressure during hydro testing of shell and tube heat exchangers? |
☺ | What is a "saltation velocity" and how is it used in designing pneumatic conveying systems? |
☺ | Why is post-weld heat treatment (stress relieving) sometimes necessary for welded vessels? |
Top Best Engineering Categories
☺ | Mechanical Engineering Interview Questions. |
☺ | Civil Engineering Interview Questions. |
☺ | Chemical Engineering Interview Questions. |
☺ | Electrical Engineering Interview Questions. |
☺ | Automobile Engineering Interview Questions. |