Answer / prabhakaran

pH values above 8.5, the
-d[I2]/dt = k • [I2] • [SO2] • [H2O]
Good Titration PracticeTM in KF Titration

reaction rate increases due to side reactions between iodine and hydroxide or methylate ions;
in a titration, this results in a more sluggish endpoint and higher iodine consumption

Answer / sakkiar

The higher side of kf factor-due to anti diffusion tube leakage. This need to be checked frequently.

why RID detector is used for selective materials like Mannitol, Hydroxyethyl Starch and Sorbitol?

5 Answers  

---

why in GC calibration of linearity regression coefficient should not be less than 0.999

1 Answers   Acacia, Jubilant,

---

Suppose we prepared pH buffer solution in lab.and calibrate against NIST solution, and same shall going to used upto 30 days. is it possible to stable pH and apperance ? suggest ?

1 Answers   Orchid,

---

in hplc calibration we are using 0.05% acetone why we are using that one and what happen when its conc increases or decreases

4 Answers   Aurobindo, Cadila, Martin,

---

What is the reason of RT change in new column v/s old column in HPLC

3 Answers   Apex,

---

What is definition of RRT and what is the difference between RT and RRT in HPLC

2 Answers  

---

How we get DST moisture 15.4-16.0%. what is the calculation or method behind it.

2 Answers  

---

principle of AAS & its uses ?

1 Answers   Auriga,

---

WILL YOU DRY DST BEFORE FACTOR DETERMINATION BY USING KARL FISHER TITRATOR

4 Answers   Aurobindo, Meghmani Organics,

---

How to calculate mass balance in RS after degradation

1 Answers   Reddy Labs,

---

what is the principle of assay of sodium nitrite?

2 Answers  

---

solvents used in NMR

2 Answers   Laurus,

---