77 983
Assignments Done
98,2%
Successfully Done
In August 2019

Answer to Question #41317 in Other Chemistry for edward

Question #41317
Dear sir
IN Potentiometric determination of hydrogen sulfide, carbonyl sulfide and mercaptans in petroleum products METROHM APPLICATION NO.135/2 e-we use Alkaline solvent for low molecular mercaptans:
2.7 g CH3COONa * 3 H2O is dissolved in 25 mL dist. water. Add 975 mL IPA as
well as 10 mL w(NH3) = 25% and mix.
• Acidic solvent for higher molecular mercaptans:
2.7 g CH3COONa * 3 H2O is dissolved in 25 mL dist. water. Add 975 mL IPA as
well as 4.6 mL glacial acetic acid and mix.
can you tell us 1)why use CH3CCOONa and why i use NaOH?
2)why i can not use one solution for high or low molecular mercaptans?
3)WHY CAN I USE CH3COOH FOR HIGHER MOLECULAR MERCAPTANS?
BEST REGARDS
EDWARD
Expert's answer

Not answered

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question

Submit
Privacy policy Terms and Conditions