Acid Orange 7
C.I.NO. 7
Specification 150%
OWF(%) 2.0
Light Fastness 6
Washing(Pes) 5
Washing(Co) 4-5
Sublimation
4
Dyeing Property: High temp very suitable
Thermosol very suitable
PH Value 4-8
Cotton fabric color stain 2-4
Properties: Golden yellow powder. Soluble in water is red light yellow, orange soluble in . The strong sulfuric acid for quality in red, dilute create tan precipitation; In a golden of nitriacid; In the thick of sodium
solution not dissolve. Its water solution with hydrochlori acid generation tan precipitation; Add sodium
solution brown. In dyeing copper ions trend dark red in colour and lustre of iron ion shallow and dark. Discharge the gender is good.Applications: Mainly used for silk and wool dyeing, widely used in wool dyeing, can be used for wool, silk and polyamide fiber fabric of direct printing, leather and paper color, can also be used in indicator and biological shading. Is tasted can be used as a food dye, heavy metal salt used in organic pigments.