Acid Orange 7

Chemical Structure:

Azo   

Chemical Formula:

C16H11N2NaO4S

CAS No.

633-96-5

C.I.:

15510

EINECS No.

211-199-0

Molecular Weight:

350.33

Molecular structure

Appearance:

Shade:

Solubility:

Moisture:

Insoluble:

Fineness  

Light fastness:

Washing fastness:

Rubbing wet:

Rubbing dry:

Golden yellow powder

Similar to the standard

Not available

≤4.0%

≤0.5%

≤4.0% (through 100mesh sieve)

4

4

3-4

4

Property:

Reddish yellow color when dissolved in water, Even stained copper ions tend to dark red, the color of iron encountered shallow and dark. Discharge well.

Application: 

Mainly for silk, wool fabric dyeing, can also be used for the leather, paper dyeing. In formic acid bath can be stained nylon. The materials can be in hair, nylon silk printing directly, but also can be used as indicators of biological agents and coloring.