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Acid Orange 7

TRADE NAME:
Acid Orange II
Acid Orange
AACL Orange II Conc
ABCOL Acid Orange II crude

CAS NO: 633-96-5

CI.NO: 15510

Molecular Formula: C16H11N2NaO4S
Molecular Weight: 350.33
Shade:Red light orange
COLOR TEMPLATE

Acid Orange 7 Physical and Chemical properties

Leveling (grade)

Displacement

Whitening

Solubility(g/L)

Metal ion effect(grade)

copper

iron

chromium

4~5

A

well

300(100℃)

3~4

4~5

Colour Fastness Test

Test Methods

fiber

Alkali resistance

Carbonization

Chlorination discoloration

Oxygen bleaching

Alkali fluff

Acid fluff

potting

soaping

Perspiration

Sun exposure

discolor

Staining

discolor

Staining

discolor

Staining

discolor

Staining

AATCC

wool

3~4

5

1

1

1

1~2

1~2

1

5

ISO

wool

4

4

2~3

1

1

1

2~3

1

1

1

1

2

2~3

4
 

Appearance is golden yellow powder. Acid Orange 7(Acid Orange II) is red yellow in water, soluble in orange. It is magenta in concentrated sulfuric acid, and it forms a brownish yellow precipitate after dilution. acid orange 7 is golden yellow in concentrated nitric acid. It is concentrated in concentrated sodium hydroxide solution. Insoluble. Adding concentrated hydrochloric acid to the aqueous solution has a brownish yellow precipitate; adding sodium hydroxide solution is dark brown. When the dyeing occurs, the copper ions tend to be red and dark; in the case of iron ions, the color becomes lighter and darker.

Acid Orange 7 Use condition:

1. Can be used for dyeing and direct printing of silk, wool and nylon.

2. Blending of blended fabrics: When wool and various fibers are dyed in the same bath, the nylon and silk are dyed, the silk is slightly shallow, and the cellulose fibers are slightly stained.

3.Acid Orange 7 can be used for leather dyeing and can also be used for biological dyeing. Pure products can be used as food dyes.

Acid Orange 7 Application:

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.

Packing:

20 or 25kg/compound bag, carton box, iron drum, fiber durm for powder dye and 1000kg/tank for liquid dye

Acid Orange 7 Material Safety Data Sheet (MSDS)

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