The 5-Second Trick For principle involved in limit test for heavy metals
(For your resolve of lead in iron salts use 10 ml of ammonium citrate Answer). Include two drops of phenol crimson solution and make the answer just alkaline (red in coloration) through the addition of sturdy ammonia Answer. Cool the answer if required and include 2 ml of potassium cyanide Resolution.Limit Test for Heavy Metals is based around the