... ≥97°CAsh content≤0.03%PH value5.0-6.0Properties and Usage:BTA is bitter, odorless, boiling point is 204° ... C (15mmHg),soluble in alcohol, benzene,toluene,chloroform and dimethylformamide, and slightly soluble in water. It's mainly used as rust ... , photographic antifogging agent, copper mine flotation, metal's slow corrosion etc.Package and Storage:plastic woven bag,20Kg/bag or customers' requirement ...