1. OBJECTIVE
To lay down the procedure for preparation and standardization of 0.05 N Ceric Ammonium Nitrate
2. SCOPE
This procedure is applicable to Quality Control Department
3. RESPONSIBILITY
• Officer QC
• Manager QC
4. SAFETY INSTRUCTIONS
• Proper handling the apparatus.
• Proper handling the chemicals
5. PROCEDURE
5.1 PREPARATION
5.1.1 Weigh out 2.75 g of ceric ammonium nitrate using a balance.
5.1.2 Dissolve 2.75 g of ceric ammonium nitrate in 1 N nitric acid to obtain 100 mL of solution, and filter.
5.1.3 The resulting solution is a 0.05 N solution of ceric ammonium nitrate.
5.2 STANDARDIZATION
5.2.1 Accurately measure 10 mL of freshly standardized 0.1 N ferrous ammonium sulfate VS into a flask,
5.2.2 And dilute with water to about 100 ml. Add 1 drop of nitrophenanthroline TS, and titrate with the ceric ammonium nitrate solution to a colorless endpoint.
5.2.3 And calculate the normality by the following formula:
ml Fe (NH4)2 x N Fe (NH4)2 (SO4)2
N= —————————————————–
ml of Ce(NO3)4 . 2NH4NO3
6. RELATED DOCUMENTS
N/A
7. DISTRIBUTION INDEX
Original Copy will be retained by Quality Assurance Department.
| DISTRIBUTION INDEX | ||
|---|---|---|
| Distributed To | Copy No. | Received By/Date |
| Quality Control Department | 01 | , |
8. ABBREVIATIONS
Q.C Quality Control Department
TS Test Solution
Vs. Against
Gm Gram
ml Milliliter
9. REVISION HISTORY
| Revision No. | Issue Date | Supersedes | Reason of Change / Description |
| Revision No. Dated | |||
| 00 | 10/02/2023 | 00 N/A | First Version |