Factory Price Basic Violet 10 Rhodamine B

Product Description

Product Description

Product Name: Basic Violet 10

C.I. No.: 45170
CAS No.: 81-88-9
Molecular Formula: C28H31ClN2O3
Molecular Weight: 479.01
Relative Name:
Rhodamine B;Brilliant Pink B, Rhodamine O
Shade: red light purple powder,Light green flash small crystalline powder.

Basic Violet 10 Dyeing Fastness(grade)

Fiber		Silk
Item		Sample change	white silk stain	white cotton stain
Light fastness		2~3	-	_
Flooding		4	1	2~3
Soaping (40ºC)		3~4	1~2	3
Perspiratio		4	1	3
Rubbing	dry	-	-	4
	wet	-	-	2~3
Ironing		4~5	-	4~5
Sulfuric acid resistant		4	-	-
Acetate resistant		4	-	-
Alkali resistant		3~4	-	-

Basic Violet 10 Properties and Applications:
The appearance is bright green glitter small crystalline powder. It is soluble in water and alcohol, all of which are blue-red and accompanied by strong fluorescence. It is slightly soluble in acetone and soluble in ethylene glycol ether. The dye is yellowish brown in concentrated sulfuric acid. It has strong green fluorescence, which turns into a scarlet after dilution, gradually turns blue red to orange; it is golden yellow in concentrated nitric acid. Its aqueous solution is added with sod-ium hydro-xide as rose red, and there is flocculated precipitation after heating; Hyd-rochloric acid is separated by fine green crystals.
The amount of alkali-ne rose B in the dye bath at pH 5.5 is lower than the pH 3.2, because alk-aline rose B is an amphoteric dye with both a car-boxylic acid group and a tertiary amino group in the molecular structure. When the value is high, the ionization tendency of the carboxylic acid group in the dye molecule increases, the ioniz-ation tendency of the tertiary amino group decreases, and the ionized carboxylic acid group in the dye molecule and the acidic group ionized in the acrylic macromolecule are ani-onic. Mutual exclusion; when the pH of the medium is low, the situation is reversed, and thus the amount of dyeing is increased.

Application
1. Silk dyeing: It is used for dyeing silk and is carried out in an acetic acid bath. It is dyed on silk with red-violet purple fluorescent color, bright color and yellow under tungsten light. The disadvantage is that the fastness is too poor, alcohol can be used. The esterification reaction is carried out, and the hydrop-hilic carboxyl group is blocked and modified. The modified dye is called "20% rose essence 3B", and the dyed silk has better fastness than rose essence B, and the water immersion is good. It can be improved by 2~3 grades, the soaping fastness is improved by 1~2 grades, the perspiration fastness is improved by 1~2 grades, and the light fastness is improved by grade 1, which can meet the quality requirements of silk printing and dyeing. Silk fabrics are used for grafting. "20% rose essence 3B" dyeing, the effect is better.

2. Acrylic dyeing: When used for acrylic fiber dyeing, the pH value is greatly affected. The dyeing bath is generally adjusted with acetic acid and so-dium ace-ate, usually

The color light is stable in the range of pH 2.5~5.5; when the pH value is below 2.5, the color light changes. If the dye bath is required to be stable, A dilute solution of sulfuric acid or formic acid can be used.
3. Wool dyeing: It can be used for dyeing wool, in neutral or acetic acid bath, with light fastness level 2 and soaping fastness level 3.
4. Cotton dyeing: It can be dyed with tannin mordant cotton fiber, but the dyeing fastness is very poor, the light fastness is 1~2 grade, the soaping staining fastness is 3 grade, the water immersion staining fastness is 2~3 grade, sweat stain The color fastness is 1 grade, the ironing fastness is 4~5 grade, the sulfuric acid and acetic acid fastness are 4 grades, and the soda fastness is 3~4 grade.
5. Others: the paper industry is used to dye wax paper, printing paper, glossy paper, etc.; and precipitates with phosphotungstic acid to form oil for the production of oil .

Package, 25KG/DRUM, CARTON BOX, BAG

Company Profile

 

Our Service

 

FAQ

Q1. How can I get the samples for testing?

A:

1.We can provide a certain quantity of free samples. Please give the specific CAS or CI NO. of the product and we will give you the sample based on our standard.

 

2.You can send your samples to our office and we will send back the copy samples for you. It's a more efficient way.

Q2. How can I get the price of needed products?

A:

1. Please give the exactly CAS or CI Number, quantity, packing, destination port or specs requirements. We can according to your exact requirements to give you the price.

 

2.You can send us a sample, we can according to your sample give you a counter sample and price.

Q3. I don't know whether your product can be available, how can I order this from you?

A:

It's the best way if you can send us a sample, so we can according to your samples give you a counter sample for checking the quality. Also we will quote a price for you to check the cost. After confirming all of this, you can contact our sales for an order.

Q4. I am a small wholesaler, do you accept small order?

A:

It's no problem if you are a small wholesale, we would like to grow up with you together.

Q5. How to use the product?

A:

We are pleased to be requested the application methods from you and we will use words and videos to tell how to use. We also have application engineers can provide onsite service for you customers.

 

Q6. Can you make OEM service of your products?

A:

Yes. We can accept OEM service. Also we have provided OEM service to lots of big and famous companies in the order.

Q7. How can you ensure the quality to us?

A:

1. Quality is the foundation of our company,we have been engaging in this field for more than 20 years. Superior quality brings us the benefits and gives us the vitality.

 

2. The bulk production is the same quality as the confirmed sample we provide to you for testing before the order.

 

3.If you still have doubt, you can request the third part company, such as SGS, to inspect and test the bulk cargo before shipment (you should bear the inspection expense).

 

If you want to konw more details,Please contact with me.