TAKE QUANTITY SMELLS LIKE CH3COO- OF SOLUTION AND THAT OF ADD VINEGAR OXALIC ACID PREPARE THE PASTE OF IT WITH A FEW DROPS OF WATER RUB AND SMELL TO ONE PART OF NO REACTION Pb ABSENT SOLUTION ADD KI TO ONE PART OF THE A PPT IS Mg PRESENT SOLUTION ADD FORMED SOLID NH4OH IN SLIGHT EXCESS AND THEN ADD AMMONIUM PHOSPHATE CHEMICAL REACTION:- CO3+MgSO4→MgCO3+SO42-(WHITE PPT) CO3+2CH3COOH→(CH3COO)2Ca+H2O (CH3COO)2Ca+(MgCl4)2C2O4→2CHCOONa+ Ca2O4
TAKE QUANTITY OF SOLUTION AND ADD OXALIC ACID SMELLS LIKE THAT OF VINEGAR CH3COO- PREPARE THE PASTE OF IT WITH A FEW DROPS OF WATER RUB AND SMELL TO ONE PART OF SOLUTION ADD KI NO REACTION Pb ABSENT TO ONE PART OF THE SOLUTION ADD SOLID NH4OH IN SLIGHT EXCESS AND THEN ADD AMMONIUM PHOSPHATE A PPT IS FORMED Mg PRESENT CHEMICAL REACTION:- CO3+MgSO4→MgCO3+SO42-(WHITE PPT) CO3+2CH3COOH→(CH3COO)2Ca+H2O (CH3COO)2Ca+(MgCl4)2C2O4→2CHCOONa+ Ca2O4
analysis_of_toothpaste.docx