Basic Violet 1

Name: Basic Violet 1
Availability: InStock

Powder properties

Basic Violet 1(Methyl violet 2B) Appearance is blue-violet powder, soluble in cold water and hot water, soluble in alcohol, purple. Dye is orange in concentrated sulfuric acid, thin After release, it turns green and has a precipitate. The aqueous solution of the dye is purple, and the sodium hydroxide is added to brownish red and precipitates.

TRADE NAME

Methyl violet 2B,Basic Violet 2B

key features

Commercial names: Basic Violet 1, Methyl Violet 2B, C.I. Basic Violet 1 (CAS 8004-87-3)
Color / appearance: deep violet–purple powder; produces vivid purple solutions
Chemical class: triarylmethane basic (cationic) dye
Solubility: water-soluble (solubility varies by grade), soluble in ethanol and some organic solvents
Typical applications: textile dyeing (cotton, silk, wool), biological staining, inks, paper marking, leather dyeing
Fastness notes: moderate wash fastness on cellulosic fibers; better affinity on protein/keratin fibers with appropriate mordanting or carriers
pH behavior: solution color and stability sensitive to strong acids/alkalis (color shifts and precipitates can occur)
Handling & storage: store in a cool, dry, dark place; keep containers tightly closed

Liquid properties

‍Drying quickly: having strong affinity for fibers / substrates in weak acid bath, with bright color and good compatibility, suitable for large-scale continuous production.
Color fastness: Wool/cotton has light fastness of 1-2 grades and washing fastness of 2-3 grades; Acrylic/silk has washing fastness of 4 grades and sweat fastness of 4 grades, and dry rubbing fastness of 3 grades. Suitable for scenarios without sun resistance requirements.‍

Application:

Basic Violet 1 used for dyeing and printing cotton, wool and silk. This product is mainly used for non-textile coloring and can also be used to make organic Pigments and solvent dyes can also be used for paper, leather, bio-staining, as well as for coloring and marking of film and varnish.

Technical Specifications

‍CAS NO: 8004-87-3
CI.NO: 42525
Molecular Formula: C29H28N3NaO7S2
Molecular Weight: 617.67
Shade: blue purple. Blue light purple powder.‍

Light Fastness	1
Perspiration Fastness(fading)	1-2
Perspiration Fastness(stain)	-
Soaping(fading)	1-2
Soaping(stain)	-

Liquid Physical Properties and light fastness

Color	Violet
Appearance	Liquid
Content	40%
Odor	Tasteless
Melting point	none
Flash point	> 75 ℃
Boiling point	> 100 ℃
Water soluble	soluble
PH value	3.0-5.0
Density (g / cm3)	1.05-1.35

Colour Fastness Test

Fiber	Testing method	Light		Soaping	Perspiration	Dry Ironing	Rubbing
		Light source	neutral color	fading	fading	fading	dry	wet
Cotton	B	sunlight	1	1~2	1~2	3	—	—
	C	sunlight	1~2	3~4	4~5	3	—	—
Acrylic	—	2~3		4	4	4~5	4	2~3

Package

Powder:25KG/DRUM, CARTON BOX, BAG;

Liquid:25KG DRUM, 1000KG IBC DRUM.

Does Basic Violet 1 have good lightfastness?

It shows moderate to good lightfastness on textiles, especially on acrylic fibers, though performance may vary depending on processing conditions.

Can Basic Violet 1 be used in aqueous systems?

Yes, it dissolves well in water, making it suitable for aqueous dye baths and ink formulations.

How does Basic Violet 1 perform on acrylic fibers?

It has excellent affinity and build-up properties on acrylic fibers, ensuring deep and uniform shades with strong brightness.

Is Basic Violet 1 suitable for blended fabrics?

It works best on acrylics but may also be applied to certain blends where compatibility with cationic dyes is required.