... 30%max,pH :9-10Packing:25kg plastic woven bag,25mt/20'FCL TESTSPECIFICATION 1 Appearancewhite granular2 Assay ≥94%3 Alkali ... occur caramel smell. (2) sample solution with 4.3% sodium hydroxide solution to neutral, plus 5% sulfuric acid solution heated to ... produced. Take this solution, part of the added 4.3% sodium hydroxide solution, insoluble precipitate; part by adding 24% hydrochloric acid, then ...