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Offer Acid Nigrosine On Hot Sale

Short Description:

Product Name:ACID NIGROSINE
Color Index No.: C.I.ACID BLACK 2(50420)
CAS NO:8005-03-6
Molecular formula:Unspecified

Product Detail

Product Tags

Color

Shade

Product

Name

Content

Dyeing Depth
(%o.w.f)

Fastness Properties(Change of Shade)

Light

Washing
40℃

Hot Pressing

180℃

Perspiration

Rubbing

(Dry)

Rubbing

(Wet)

uty

Acid Nigrosine

100%

4.0

5

4

4-5

4

3-4

2-3

Synonyms: C.I. Acid Black 2; Nigrosine; C.I. 50420; Nigrosin water soluble; nigrosin cell culture tested; Nigrosin Acid black; Acid Black 5 (50420); Nigrosin; Nigrosine Water Soluble
Property of Acid Nigrosine:
Appearance: black shining crystal.
Maximum wavelength(λmax): 570nm

Soluble in water is blue purple.Soluble in ethanol is blue.The dye is blue in concentrated sulfuric acid.It will be purple when diluted and precipitated.The precipitate is dark purple when sodium hydroxide is added in water solution.

Application:It is mainly used for leather dyeing (generally by chrome mordant). It is also suitable for dyeing paper, wood, soap, electrochemized aluminum and wool and silk fabrics and also can be used for ink making.

 Specifications:

Item Description
Name Acid Nigrosine
Color Index No. C.I.Acid Black 2
Chemical Family Acid dyes
Apearance Black crystal with lustre
Shade similar to standard
Tinting strength 100+/-3
Moisture 6% max.
Ash 1.7% max.
Insoluble matter 0.5% max.

Storage:store in a cool and ventilated room.
Quality guarantee period: 36 months.
Packing: 25kgs iron drum/paper carton.


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