Description CAS#: 77-98-5 | Formula: (C2H5)4NOH | Specifications: Color (APHA) 10 Max, Concentration 19.5 - 20.5 %, Halides (as chloride) (ppm) 200 ppm Max, Iron 1 ppm Max, Potassium 5 ppm Max, Sodium 5 ppm Max