Total Acid Number, Total Base Number & PH?

What do we mean by total acid number, total base number and what is the difference between total acid number and PH?

I am working in a laboratory that deals with lubricating oil samples and water samples and I am always confused about the meanings of these terminologies.

Answer:
TAN and TBN are specific test methods (ASTM or IP) that relate to the amount of acid or alkali equivalent in the lube oil, usually expressed as mg equiv to KOH required to neutralise the acid (TAN) or equivalent to mg KOH (TBN). They are usd as a measure of the degree of oxidation of the oil (TAN) or the amount of base aditive (eg basic calcium sulphonate) available to mop up oxidation acids and fuel sulphur acids (TBN).

pH is only effective as a measure of hydrogen activity in aqueous media, and really doesn't apply to lubricating oil systems.

The answers post by the user, for information only, FunQA.com does not guarantee the right.



More Questions and Answers:
  • How can cells form and survive at first ?
  • Research.silicon chips!!?
  • How do I rewrite equations as ionic equations? Somebody help me pls?
  • Natural gas contains 84% CH4, 10% CH6, 3% C3H8, 3% N2...?
  • Which of the following phase changes does not involve a liquid?
  • Are there any solvents that dissolve concrete ?
  • Chemistry Question?
  • Why is it when So3 is added to water the ph Decreases?
  • What is inside compressed gas dusters.?