Name:C.I.Acid Red 52,C.I.45100
Molecular Structure: Xanthene class
C.I.Acid Red 52,C.I.45100,CAS 3520-42-1,580.65,C27H29N2NaO7S2,Acid Rhodamine,Acid Rhodamine B,Acid Rhodamine E-XB,Acid rose red B
Molecular Formula:C27H29N2NaO7S2
Molecular Weight: 580.65
CAS Registry Number:3520-42-1
Manufacturing Methods : 4-Formylbenzene-1,3-disulfonic acid and 3-(Diethylamino)phenol condensation, the products with sulfuric acid dehydration, and ferric chloride oxidation, and finally into sodium salt.
Properties and Applications: bright blue light pink. Dark red light brown powder. Soluble in water, in blue light red, with fluorescence, also soluble in alcohol. The strong sulfuric acid dyes is orange, diluted for red, with sodium hydroxide solution is blue light red. Mainly used for wool, silk and polyamide fiber dyeing, also can be used for wool and a variety of fabric dyeing, still can be in wool and silk fabric printing directly, also can used for leather dyeing.
Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 3 | 3-4 | 3 | 4 | 1 | 2 | 3 | 2 |
AATCC | 2-3 | 3 | 3 | 3 | 1 | 2 | 4 | 2-3 |
