... Odorless ,brown amorphous powder. SC/T 3401-1985 sodium alginate industry grade powder,RPP-25Odorless ,brown amorphous powder. SC/T 3401-1985 ... It is preferred printing paste in the printing and dyeing industry.SODIUM ALGINATE QUALITY STANDARD:Data GradeItemExportedDomestic marktTechnical gradeFood gradeQualityat users ... ≤0.004% Lead ≤0.0004% Arsenic ≤0.0002 sodium alginate industry grade powder,RPP-25