Please tell you have mentioned that burette reading of blank as 11.1 and burette reading of sample 10.5.The fact is that higher burette reading means higher COD. When Burette reading of blank is high it means its COD is high,which in turn means blank sample has higher organic content and incubated sample has low burette reading and low COD
This is for your clearance: - please note that this is kind of back titration method. suppose you have some organic matter in the sample which shall be completely digested by some amount of K2Cr2O7, and surplus Potassium Dichromate shall be titrated with the FAS for calculation. Now in blank sample there is no impurity which means whole Potassium Dichromate is to be titrated with FAS and consumed more in Blank. that's why Blank reference is also considered in in the testing. hope this will help you.
aap 98% h2so4 without hand gloves addition kar rahe ho or pure video me aapne kaha bhi hand gloves nahi pehna. #safetyfirst aapko lab safety ke bare me padhne ki jarurat hai.. ye video ko dekh ke lab chemists per galat impact aa sakta hai.
Understand completely, thanks for sharing
Satisfied with the Information
Please tell you have mentioned that burette reading of blank as 11.1 and burette reading of sample 10.5.The fact is that higher burette reading means higher COD.
When Burette reading of blank is high it means its COD is high,which in turn means blank sample has higher organic content and incubated sample has low burette reading and low COD
This is for your clearance: - please note that this is kind of back titration method. suppose you have some organic matter in the sample which shall be completely digested by some amount of K2Cr2O7, and surplus Potassium Dichromate shall be titrated with the FAS for calculation. Now in blank sample there is no impurity which means whole Potassium Dichromate is to be titrated with FAS and consumed more in Blank. that's why Blank reference is also considered in in the testing.
hope this will help you.
Good knowledge .
Deeply explain
Sir have a question . Your Burrett reading is approx 10 to 11 how can possible this in two different normality of solutions 0.25 and 0.1N.
Thanks for this video sir. 🙏
Sir BOD,TDS,PH,DO,etc test ka video pura with regent and calculation ka banaye
Bilkul sir aapka video bahut hi helpful hai.
Plz above topic pe bhi video banaiye.
Understandcompletely
Thanks
Nice concept sir Ji 🙏
Very helpful.
Nice video
Good knowledge 👍
Nice explanation sir
Audio is very low please solve this
Can it be done in English? Also is it compulsory to digest the sample? Why can't we titrate it direct
Good morning sir, mere pass pure sulphuric acid hai ,mujhe 98% concentrated sulphuric acid bnana hai kaise bnaye ,plz help me sir or anyone
Purity of Sulphuric acid is 98%, you don't have to do anything. It is already 98% concentrated.
@@aquazoneengineering3556 okey thank you so very much sir
Sir stp me COD ke liye 150 temp rkhte h for 2 hour but hmare COD digester me 100 tk hi temp h toh kitna temp rakhe ham
Dm water kya hota hai sir ne bataya tha 3:30 seconds par koi batayega?
De-mineralised water, aisa water jisme TDS less than 0.9 ho. And conductivity 1.2 .
Thanks 🙏👍🙏👍
Please, how is sample dilution 10?
USBR technology ka video upload kijiye sir
We will share very soon.
Sir is there no need of COD digestor for the process to occur
Kya iske reference ka link bhi upload kar sakte hain please?
Blenk 24.25 no vche Avu jove evu kaik hoi chhe
Sir Benzyle salicylate acid value
Method and farmula
My sample titration always exceeds blank sample by this method. Y this error occurs
thank you so much ,but measure of sécurité out , normalement sous haute chimique il y'a un risque pour votre santé
Each single point understand clearly
Sir can you tell me which sop followed for COD determination , I want to know that sop
IS 3025 PART 58
Thank you sir !
Why ...we take 8000....what is it's mean
5 ml potassium dichromate Pipette se kyu nahi dala
What if we don't heat for 2 hour so the results will be higher or lower than actual results
Could be any of them, most of the time it may show higher then actual, because digestion would not take place properly.
@@aquazoneengineering3556 thanks bro I have doubt now cleared basically I am ETP and ro incharge what about u
8000 is f.a s factor sir
Complete test BOD parameter video uploaded sir
Mughe sikhna h
Then watch all videos of our channel.
aap 98% h2so4 without hand gloves addition kar rahe ho or pure video me aapne kaha bhi hand gloves nahi pehna.
#safetyfirst
aapko lab safety ke bare me padhne ki jarurat hai..
ye video ko dekh ke lab chemists per galat impact aa sakta hai.
Hi
Blenk 24 . Ane 25. Vachej avu jove em nathi