P Palmitic acid
Perchloric acid
Petroleum    
 
Phenol
Phenylhydrazine
   
Phosphoric acid 50 % 70℃
   
Phosphoric acid 50 % RT
Phosphoric acid 75 % RT
Phosphoric acid 85 % 70℃      
Phosphorus oxychloride (70℃)      
Phosphorus trichloride      
Phthalic acid (70℃)      
Picric acid
Pine oil
   
Pinene    
 
Potassium chloride
Potassium cyanide
   
Potassium dichromate10% RT
 
Potassium hydroxide
Potassium hydroxide 20% 70℃      
Potassium nitrate
 
Potassium permanganate 5% RT
 
Potassium sulfate
 
Propane
 
Propyl acetate  
 
Propyl alcohol  
Propylene
   
Propylene oxide      
Pyridine