SPECIFICATIONS OF CHRYSOIDINE BASE
(C.I.Solvent  orange 3).


1)Physical Appearance	:Orange powder.

2)Insoluble content.		:0.25%Max.

3)Chloride content.		:0.2% Max.

4)Moisture content		:1.5% Max.

5)Absorbance at 460 nm. Of

5mgs./liter Solution in

methanol			:0.93+/_ 0.02.


SPECIFICATIONS OF CRYSTAL VIOLET BASE
(C.I. SOLVENT VIOLET 9)


1)Physical Appearance	:Bluish black fine powder.

2)Insoluble Content		:Less than 0.2%.

3)Purity			:99.7%.

4)Tone			:Bright Bluish Violet.

5)Stability			:Almost permanent.

6)pH of 10% slurry in 

distilled water		:pH 7-7.5%.

7)Moisture Content		:Less than 4%.

8)Absorbance of 3 mgs/Litre

solution  in Methanol at 589-592

nm.(1cm.cell)			:0.710  to  0.770.

9)Michler’s Ketone 

content.			:Less than 1%.




SPECIFICATIONS OF CRYSTAL VIOLET
(C.I. BASIC VIOLET 3)

				

1)Physical Appearance	:Lustrous Green Crystals.

2)Solubility in water		:More than 5% w/w.

3)Insoluble Content

in water			:2% Max.

4)Bulk Density		:0.4%

5)Stability			:Permanent.

6)Tone/Shade			:Bluish Violet.

7)Absorbance at 589-592 nm.

of 5 mgs/liter

Aqueous solution.		:0.815 +/- 0.020.

8)Alcohol Insoluble		 :2% Max.

9)Sulphated Ash Content	:3% Max.

10)Moisture Content		:3% Max.




SPECIFICATIONS OF METHYL VIOLET BASE


(C.I.Solvent Violet  8)


1)Physical Appearance		:Bluish black powder.

2)Insoluble content in Dowanol

+oleic acid.				:0.25% Max.

3)Tone 				:Reddish bright violet.

4)Stability				:Almost permanent.

5)pH of 10% slurry in water	:7 to 7.5.

6)Moisture content			:1.5% Max.

7)Absorbance at 585 nm.

Of 3 mgs./litre solution in

Methanol.				:0.740+/-0.030.

8)Michler’s ketone content		:1.0% Max.

9)Chloride content			:0.2% Max.

 



SPECIFICATION OF METHYL VIOLET 2B LIQUID.
(C.I. BASIC VIOLET 1)


1)Physical Appearance	:Green Lustrous  Liquid.

2)Dye Content		:50+1% of ISI / International

Standard of Methyl Violet H cone.

3)Main Solvent used		:Glacial Acetic acid.

4)Solubility in water 

without the aid of any 	:Soluble in all proportion without

acid or solvent.

5)Stability			:Permanent.

6)V.O.C.			:20-23%.

7)Shade			:Reddish Violet-/+2 traces.




SPECIFICATION OF RHODAMINE BASE
(C.I. SOLVENT RED 49)


1)Physical Appearance	:Pink fine powder.

2)Insoluble Content in  Oleic

acid + DEG			:0.2% Max.

3)Moisture Content		:1.0% Max.

4)pH of 10% slurry in

    Distilled water		:7.5 +- 1

5)Shade 			:Bluish pink.

6)Strength			:100 + 2%

7)Chloride content		:0.2%Max.


SPECIFICATIONS OF SOLVENT BLUE 38.


1)Physical Appearance	:Bluish powder.

2)Insoluble content in 	:0.25% max.

  Oleic acid + Dowanol eph

3)Moisture Content by 	:1.5% max.

  Karl Fisher method

4)Chloride ion content 	:0.2% max.

5)pH (1 gms sample in	:7.0 +/- 1.

96 ml Ethanol+4ml methanol)

6)Absorbance of 10 mgs/lit.

Soln. in methanol   	:   A	at 665 nm. = 0.920.
				                                                         A    at 600 nm. = 0.210.

    (Ratio of A at 665 nm to 600 nm = 4.5 +/- 0.5.)


 

SPECIFICATIONS OF SOLVENT BLACK 46.


1)Physical Appearance		:Brownish Crystalline powder.

2)pH(2.5 gm.dye, 95 ml methanol,

5ml  deionized water.)		:3.8 – 6.8.

3)Moisture Content			:1.5% Max.

4)Chloride Content			:0.2% Max.

5)Insolubles in Dowanol eph +	:0.25%Max.

   oleic caid

6)Absorbance of  5 mgs./lit. soln.

in Methanol,1 cm. Cell.		:0.77+ 0.05 @ 588 +/- 5 nm.

	  		 0.21 + 0.02 @ 418 +/- 5 nm.

 Ratio of absorbance at

  588:418nm. = 3.7 +/- 0.5.

7)Michler’s Ketone Content		:1.0% Max.




SPECIFICATIONS OF SOLVENT BLUE ‘C’


(This dye has no Colour Index no. However ,it is very suitable for blue inks.)

1)Physical Appearance	:Greenish Crystalline Material.

2)Moisture  Content by	:1.5% max.

   Karl Fisher method

3)Chloride content		:0.2% max.

4)Insoluble Content in

    Oleic acid + 2 phenoxy    :.25% max

     Ethanol (2:8)

5)Spectrophotometric	:	A at 590 = 0.765 +/- 0.03.

  Assay of 5mgs/litre soln		A at 665 = 0.532 +/- 0.02.

  In Methyl Cellosolve+methanol	      (Ratio of absorbances at 

        590/665 = 1.5 +/- 0.2.)




SPECIFICATIONS OF SOLVENT RED 39


1)Physical Appearance	:Orange Powder.

2)Moisture Content		:2% Max.

3)pH of 1% Soln. In 95ml	:3.5 – 4.5

Ethanol + 5ml Dist. Water

4)Chloride Content .		:0.2% Max.

5)Insoluble Content in

    Dowanol eph+oleic acid.	:0.25% max.

6)Absorbance of  4.25 mgs/lit.

soln. in methyl cellosolve+

ethanol,1cm. Cell.		 :0.790+/- 0.025

at 530+/-5nm.




SPECIFICATIONS OF VICTORIA BLUE BASE.


(C.I.Solvent blue 4)


1)Physical Appearance	:Brownish black powder.

2)Insoluble content		:0.25% Max.

3)Moisture content		:1.5% Max.

4)Chloride content		:0.2% Max.

5)Absorbance of 

5 mgs./literSolution in

 methanol at 605nm.		:0.715+/- 0.015.



MALACHITE GREEN - BASIC GREEN 4 (C.I.NO.42000)
 



PHYSICAL APPEARANCE : 

Green Crystal/Powder with a metallic lustre.

APPLICATION : 

Used for any fibre and can be obtained shades with deep colours yield that can be
 applied for the dyeing of Cotton, Silk, Paper, Bamboo, Weed, Straw and Leather. 
Also in Manufacturing of Paints and Printing Inks.

SOLUBILITY : 

Very Soluble in Alcohol, Methanol, Amyl Alcohol, Water Solutions are Blue-Green

ABSORBTION : 

Max 616.9nm 

MOLECULAR WEIGHT :

364.90

FASTNESS PROPERTIES : 

Light : 4-5 

Washing : 4-5 

Water : 5 

Perspiration : 4 


--------------------------------------------------------------------------------



METHYLENE BLUE - BASIC BLUE 9 (C.I.NO.52015)
PHYSICAL APPEARANCE :

Brownish Powder with a lustre.

APPLICATION : 

Used for any fibre and can be obtained shades with deep colours yield that can be 
applied for the dyeing of Cotton, Silk, Paper, Bamboo, Weed, Straw and Leather. 
Also in Manufacturing of Paints and Printing Inks.

SOLUBILITY : 

Very Soluble in Water, Soluble in Alcohol, Chloroform and insoluble in ether 

ABSORBTION : 

Max 668.609nm 

MOLECULAR WEIGHT : 

373.90 

FASTNESS PROPERTIES : 

Light : 2-3 

Washing : 4 

Water : 3-4 

Perspiration : 4 


--------------------------------------------------------------------------------



<4>METHYL VIOLET - BASIC VIOLET 1 (C.I.NO.42535) 
PHYSICAL APPEARANCE : 

Greenish Powder with a lustre.

APPLICATION : 

Used for any fibre and can be obtained shades with deep colours yield that can be 
applied for the dyeing of Cotton, Silk, Paper, Bamboo, Weed, Straw and Leather.
 Also in Manufacturing of Paints and Printing Inks.

SOLUBILITY : 

Soluble in Water, Ethanol, Methanol, Diethylene Glycol and Dipropylene Glycol 

ALCOHOL INSOLUBLES : 

1.0 % w/w max. 

MOLECULAR WEIGHT : 

393.50 

FASTNESS PROPERTIES : 

Light : 2 

Washing : 4-5 

Water : 4 

Perspiration : 4-5 


--------------------------------------------------------------------------------



AURAMINE O & OH - BASIC YELLOW 2 (C.I.NO.41000)
PHYSICAL APPEARANCE : 

Yellow Powder.

APPLICATON : 

Used for any fibers and can be obtained attractive shades with enough deep colours yield, 
they can be applied for the dyeing of Cotton, Silk, Paper, Bamboo, Weed, Straw and Leather,
 Toners and Colour lakes prepared from basic dyes possess very fastness to light and therefore 
widely employed in the preparation of carbon paper, ball-pen, oil & stamp pad inks. Also
 in manufacturing paint and printing inks.

CHEMICAL COMPOSITION : 

C17 H22 N3 C1 

SOLUBILITY : 

Very Soluble in Water & Methanol 

MOISTURE : 

1.0 % w/w max. 

INSOLUBLE IN WATER : 

1.0 % w/w max.

MOLECULAR WEIGHT : 

303.00

FASTNESS PROPERTIES : 

Light : 1-2 

Washing : 4-5 

Water : 4 

Perspiration : 4 


--------------------------------------------------------------------------------



SULPHUR BLACK - SULPHUR BLACK 1 (C.I.NO.53185)
CHARACTERISTICS : 

Lustrous Grains, Imparts full black shade with a slight reddish or greenish tone 
according to the requirement.

APPLICATION : 

Used for Jigger, Winch and package-Dyeing for Cotton and Viscose rayon. Economic in 
Continuous dyeing.

STORAGE : 

It is quite stable, if stored in cool and dry place.

GENERAL PROPERTIES :

This dye belongs to the group of Sulphur Dyes. It is mainly used for dyeing Cellulosic fiber. 
It is also useful for dyeing viscose, staple fiber and yarn, including 
material which is to be given a resin finish, Silk, package dyeing and for continuous process. 
The light fastness of Sulphur Black is very good.

Hue. Artificial Light (tungsten) Greenish Black to Bluish Black

REACTION ON CELLULOSE:

(a) Alkaline Sodium-dithionate : Yellow olive, returning to original on Oxidation.

(b) Sodium hypochloride : Bleached 

(c) H2 So4, conc.Sulphuric acid,conc. : Redder

DYEING :

(a) Optimum dyeing temp. : 80-95deg. cent. Occasionally cold 

(b) Solubility in Na2S : Very Good

(c) Exhaustion : Good

(d) Dyeing rate : Moderate 

(e) Solubility in water : Soluble. 

REMARKS: 

Produces fast black on Cellulosic material 

Application also by pad/steam method.

Occasional direct prints on cellulose.

AFTER TREATMENT:

(a) Acetic acid : Slightly redder

(b) Acetic acid & chrome : Redder, material must be well rinsed and should be left slightly 
alkaline (Sodium acetate in final rinsing water after dyeing to counteract formation of acid,
 which may result in tendering, in unfavorable condition of storage)

FASTNESS PROPERTIES:

(a) Acid (Organic) : 4-5 

(b) Alkali : 4-5 

(c) Hot processing : 5 

(d) Light : 6-7 

(e) Mercerizing : Redder-Apparent increase in strength 

(f) Milling : 4-5 

(g) Perspiration : 5 

(h) Washing moderate : 5 

Washing Severe : 4-5 

METHOD OF APPLICATION :

The conventional method of application is from a sodium sulphide bath. The following is
 the general method

the dye is first made into paste with a little water (containing the requisite amount of
 Sulphide and soda ash) and then boiled for about ten minutes with further addition
 of water, to make solution.