Stains Indicator Reagents-69

Product Short Description: 1-(2-Pyridylazo)-2-Naphthol

Product Technical Specification:

The optimised PAN indicator contains:

Component Quantity

PAN 0.1 g

methanol 40.0 ml

n-propanol 40.0 ml

mono-ethylene glycol 10.0 ml

distilled or deionised water 10.0 ml

To make the indicator:

1. It is strongly recommended that preparation of the indicator is carried out in a fume cupboard.

2. Place the methanol in a suitable container, add the PAN and stir.

3. Dissolution of the PAN can take some time. Dissolution can be accelerated by warming gently. Avoid excessive heat because the flash point of methanol is only 11 °C. Ensure that there are no ignition sources when warming or preparing solutions.

4. When fully dissolved, allow to cool.

5. Then add the n-propanol, mono-ethylene glycol and water. Mix thoroughly by stirring.

6. Store in tightly closed container.

Note: that this indicator formulation contains organic solvents and, consequently, may have to be stored in fire resistant cupboards according to type and size of container.

The shelf life of the indicator is anticipated to be at least one year if it is stored correctly. Since only small quantities are required for assessments, it is recommended that no more than 200 ml of indicator is made at any one time.

Remarks:

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Methylene Blue AR

Product Short Description: Methylene Blue is Lab Reagent acid-base indicator

Product Technical Specification:

Synonyms : Tetramethylthionine chloride

3,7-bis(Dimethylamino)phenazathionium chloride
Basic Blue 9
Formula : C16H18ClN3S.xH2O
Molecular weight : 319,85 g/mol
CAS-No. : 122965-43-9
EC-No. : 200-515-2

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Brilliant Yellow AR

Product Short Description: Formula : C26H18N4Na2O8S2

Product Technical Specification:

Remarks:

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Metanil Yellow

Product Short Description: ACID YELLOW 36

Product Technical Specification:

C.A.S. No.	587-98-4
CI NO.	13065
M.F.	C18H14N3O3SNa
M.W.	375.391 gm/mole

Specifications Acid yellow 36:

Solubility 0.1% (Dist. Water)	Clear solution
Absorptivity (A1%, 1cm in Water, at ?max 530.0nm	>650
Loss On Drying (110°C) Moisture	>5%

Remarks:

Metanil Yellow which is also called Acid yellow 36 is used in printing on paper, dyeing on fibres, silk, Wool, nylon, silk, paper, ink, aluminum, detergent, wood, fur, cosmetics, biological stain etc.

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1,3 DibromoPropane

Product Short Description: 1,3-Dibromopropane is a halogenated hydrocarbon. When at room temperature, it is a colorless to light-brown liquid with sweet odor.

Product Technical Specification:

1,3-Dibromopropane Properties

Melting point:−34 °C(lit.)
Boiling point:167 °C(lit.)
Density 1.989 g/mL at 25 °C(lit.)
vapor density 7 (vs air)
refractive index n20/D 1.524(lit.)
Flash point:54 °Cstorage temp. 2-8°Csolubility 1.68g/lform Liquidcolor Clear colorless to yellowWater Solubility 1.7 g/L (30 ºC)Merck 14,9713Stability:Stable. Incompatible with strong oxidizing agents, strong bases. Flammable

Remarks:

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CRYSTAL VIOLET

Product Short Description: Gentian violet

Product Technical Specification:

MOLECULAR FORMULA	C25H30N3Cl
MOLECULAR WEIGHT	408.0
CAS NO.	548-62-9

DESCRIPTION	GREEN SHINY CRYSTALS
WATER CONTENT	MAX 7. 5%
RESIDUE ON IGNITION	MAX 1. 5%
ALCOHOL INSOLUBLE SUBSTANCES	MAX 1%
ARSENIC	MAX 0. 001%
LEAD ( Pb)	MAX 0. 003%
ZINC ( Zn )	MAX 0. 001%
ASSAY	96 TO 100. 5%

MOLECULAR FORMULA	C7H9N9
MOLECULAR WEIGHT	107.16
SOLUBILITY (10MG/ML IN HCL 2%)	CLEAR
MELTING POINT	127-1340 C
SENSITIVITY	TO PASS TEST

MOLECULAR FORMULA	C7H9N9
MOLECULAR WEIGHT	107.16
SOLUBILITY (10MG/ML IN HCL 2%)	CLEAR
MELTING POINT	127-1340 C
SENSITIVITY	TO PASS TEST

SENSITIVITY TEST : TO PASS TEST SPECIFICATIONS :

APPEARANCE : BLUE GRANULES

SENSITIVITY TEST : TO PASS TEST

MOLECULAR FORMULA	C25H30N3Cl
MOLECULAR WEIGHT	408.0
CAS NO.	548-62-9

DESCRIPTION	GREEN SHINY CRYSTALS
WATER CONTENT	MAX 7. 5%
RESIDUE ON IGNITION	MAX 1. 5%
ALCOHOL INSOLUBLE SUBSTANCES	MAX 1%
ARSENIC	MAX 0. 001%
LEAD ( Pb)	MAX 0. 003%
ZINC ( Zn )	MAX 0. 001%
ASSAY	96 TO 100. 5%

MOLECULAR FORMULA	C7H9N9
MOLECULAR WEIGHT	107.16
SOLUBILITY (10MG/ML IN HCL 2%)	CLEAR
MELTING POINT	127-1340 C
SENSITIVITY	TO PASS TEST

MOLECULAR FORMULA	C7H9N9
MOLECULAR WEIGHT	107.16
SOLUBILITY (10MG/ML IN HCL 2%)	CLEAR
MELTING POINT	127-1340 C
SENSITIVITY	TO PASS TEST

Remarks:

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Field's Stain A

Product Short Description: Field's Stain A

Product Technical Specification:

Appearance	Drak green to drak blue crystalline powder
Absorption maximum	650nm

Remarks:

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Field's Stain B

Product Short Description: Field's Stain B

Product Technical Specification:

Appearance	Pinkish Red Powder
Absorption maximum	529nm

Remarks:

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INDIGO CARMINE

Product Short Description: INDIGO CARMINE

Product Technical Specification:

Specifications:

DYE CONTENT Min	80%
ABSORPTION MAX	608-612 nm
ABSORPTIVITY (ON DRIED MATERIAL)	380-475 nm
LOSS ON DRYING	MAX 10 %

Remarks:

Name – Indigo Carmine
Classification – C.I No.-73015/E132/F.D&C BLUE 2/Indigotine/C.I. FOOD BLUE 1/I.S.1698

No.	Characteristic	Requirement
	Description	Reddish Blue Powder
1	Total colour/Assay, percent by Mass, min.	85.00
2	Water-insoluble matter, percent by mass, Max.	00.20
3	Combined ether extracts, percent by mass, Max.	00.20
4	Subsidiary dyes, percent by mass, Max.	02.00
5	Dye intermediates, percent by mass, max. • Isatin sulphanic acid, • 5- Sulfoanthranilic acid	00.50
6	Unsulfonated primary aromatic amine (calculated as aniline) percent by mass, max	No
7	Lead, mg/kg, Max.	10.00
8	Arsenic, mg/kg, Max	03.00
9	Heavy metals, (as pb) mg/kg, max	40.00
10	Mercury, mg/kg, Max.	01.00
11	Cadmium, mg/kg, Max	01.00

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1-AMINO-2-NAPHTHOL-4-SULPHONIC ACID

Product Short Description: 1-AMINO-2-NAPHTHOL-4-SULPHONIC ACID

Product Technical Specification:

Specifications:

MOLECULAR FORMULA	C10H9NO4S
MOLECULAR WEIGHT	239.3
APPEARANCE	LIGHT PINK POWDER
ASSAY	MIN 98. 0%
SOLUBILITY IN CARBONATE SOLUTION	TO PASS TEST
RESIDUE AFTER IGNITION	MAX 0.1%
SULPHATE (SO4)	MAX 0.2%
SENSITIVITY FOR PHOSPHATE	TO PASS TEST
CHLORIDE (Cl)	MAX 0.01%

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PAN Indicator

Methylene Blue AR

Brilliant Yellow AR

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1,3 DibromoPropane

CRYSTAL VIOLET

Field's Stain A

Field's Stain B

INDIGO CARMINE

1-AMINO-2-NAPHTHOL-4-SULPHONIC ACID

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