alpha-Naphtholbenzein
Product Code: RXSOL-69-6903-001
Product Short Description: alpha-Naphtholbenzein Indicators α-Naphtholbenzein
Product Technical Specification:
Specifications:
|
MOLECULAR FORMULA |
C27H20N2O3 |
|
MOLECULAR WEIGHT |
392.50
|
|
ABSORPTION MAXIMUM WEVELENGTH MAX |
622 - 626 nm |
|
SPECIFIC ABSORPTIVITY A 1% (on dried basis) |
700 to 950 |
|
LOSS ON DRYING (AT 1050 C ) |
Max 5.0% |
|
pH Range |
pH 8.5 - pH 9.8
Reddish Orange (APRICOT) - Greenish Blue ( TURQUIOSE BLUE )
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PHENOLPHTHALEIN COMPLEXONE
Product Code: RXSOL-69-2529-654
Product Short Description: PHENOLPHTHALEIN COMPLEXONE
Product Technical Specification:
|
C.A.S. No. |
25296-54-2 |
|
M.W. |
608.56gm/mole |
Specifications:
|
Appearance |
Off White Powder |
|
Solubility 0.1% ( in 0.1N NaOH) |
Clear solution |
|
Absorption Maximum(in 0.1N NaOH) ?max |
556-560nm |
|
Absorptivity (A1%/1cm, in 0.1N NaOH at ?max) |
>300 |
|
Loss on drying (110°C) |
<5% |
|
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ERIOCHROME BLACK T ACS GRADE
Product Code: RXSOL-69-1787-617
Product Short Description: ERIOCHROME BLACK T (ACS GRADE) Metal Titration Indicator
Product Technical Specification:
|
C.A.S. No. |
1787-61-7 |
|
CI NO. |
14645 |
|
M.F. |
C20H12N3NaO7S |
|
M.W. |
461.38gm/mole |
Specifications:
|
Solubility 0.1 % (Dist. Water) |
Clear solution |
|
Absorption Maximum (at pH 10.0 Ammonia Buffer + 2ml 0.05M E.D.T.A.) ?max |
610-630nm |
|
Absorptivity (A1%,1cm at ?max at pH10.0 Ammonia Buffer + 0.05M E.D.T.A.) |
>300 |
|
Loss On Drying (110°C) |
<1% |
|
Suitability as indicator for Metal Titration |
Passes test |
|
Remarks:
CAS 1787-61-7,7647-14-5
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o-CRESOLPHTHALEIN
Product Code: RXSOL-69-5962-700
Product Short Description: o-CRESOLPHTHALEIN colour pH indicator helpful for determination of calcium content
Product Technical Specification:
|
C.A.S. No. |
596-27-0 |
|
M.F. |
C22H18O4 |
|
M.W. |
346.38gm/mole |
Specifications:
|
Dye Content (by Spectrophotometry) |
>95% |
|
Appearance |
White-Off white powder |
|
Solubility 0.1% (EtOH) |
Clear solution |
|
Transition Range |
pH 8.2-9.8 |
|
|
Colorless-Red |
|
Absorption maximum (0.1N NaOH) at ?max |
564-568nm |
|
Absorptivity (A1%1cm in 0.1N NaOH at ?max) |
>1670 |
|
Loss On Drying (110°C) |
<1% |
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BROMOCRESOL GREEN ACS GRADE
Product Code: RXSOL-69-7660-800
Product Short Description: BROMOCRESOL GREEN ACS GRADE pH indicator
Product Technical Specification:
|
C.A.S. No. |
76-60-8 |
|
M.F. |
C21H14Br4O5S |
|
M.W. |
698.04gm/mole |
Specifications:
|
Dye Content (by Spectrophotometry) |
>95% |
|
Transition Range |
pH 3.8-5.4 |
|
|
Greenish Yellow-Blue |
|
Solubility 0.1% (95% EtOH) |
Clear solution |
|
Absorption maximum (pH 3.8) ?1max |
438-443nm |
|
Absorption maximum (pH 5.4) ?2max |
615-618nm |
|
Absorptivity (A1%/1cm at pH 3.8 at ?1max) |
240-270 |
|
Absorptivity (A1%/1cm at pH 5.4 at ?2max) |
530-570 |
|
Loss On Drying (110°C) |
<3% |
|
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AZURE A
Product Code: RXSOL-69-5315-330
Product Short Description: Dark Greenish Black Powder soluble in water.
Product Technical Specification:
|
C.A.S. No. |
531-53-3 |
|
CI NO. |
52005 |
|
M.F. |
C14H14CIN3S |
|
M.W. |
291.80gm/mole |
Specifications:
|
Appearance |
Powder |
|
Colour |
Blue |
|
Dye Content (by Spectrophotometry) |
>75% |
|
Solubility 0.1% (Dist. Water) |
Clear solution |
|
Absorption Maximum (Dist.Water) ?max |
628-633nm |
|
Absorptivity (A1%, 1cm in Water, at ?max on dried substance) |
>1120 |
|
Loss On Drying (110°C) |
<8% |
|
Suitability for microscopy |
Passes test |
|
Remarks:
Handle and store under argon. Glove bag item.
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AURIN p-ROSOLIC ACID
Product Code: RXSOL-69-6034-520
Product Short Description: AURIN p-ROSOLIC ACID is yellowish or deep-red crystals with greenish metallic luster organic compound
Product Technical Specification:
|
C.A.S. No. |
603-45-2 |
|
CI NO. |
43800 |
|
EC Number |
210-041- 8 |
Specifications:
|
Dye Content (by Spectrophotometry) |
>85% |
|
Solubility 0.1% (EtOH) |
Clear solution |
|
Absorption maximum (Ethanol +5ml 1N HCl) ?max |
482-487nm |
|
Absorptivity (A1%/1cm, in Ethanol + 5ml 1N HCl at ?max) |
>2000 |
|
Loss On Drying (110°C) |
<3% |
|
Remarks:
Dye content 85 %
Dyes, Stains & Indicators - p-Rosolic Acid
HSN Code : 32049000
IMDG Identification : Not Regulated for Transport (Non-Haz)
Molecular Formula : C19H14O3
Molecular Weight : 290.31
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Magneson Reagent
Product Code: RXSOL-69-6050-050
Product Short Description: BLUE COLOUR DYE.IT IS USED FOR DETECTION OF MG IN SALT ANALYSIS. It is also commonly used as a violet dye pH indicator, appearing yellow below pH 11, and violet above pH 13.
Product Technical Specification:
Molecular Formula:C12H9N3O4, Chemical Name:4-(4-NITROPHENYLAZO)
Images:
1-NAPHTHOLPHTHALEIN
Product Code: RXSOL-69-5960-100
Product Short Description: pH Indicator pH 7.3 colorless to reddish; 8.7 greenish to blue
Product Technical Specification:
|
C.A.S. No. |
596-01-0,
Physical State : Black Powder
Insoluble in water |
|
M.F. |
C28H18O4 |
|
M.W. |
418.45gm/mole |
Specifications:
|
Solubility 0.1 % (95% EtOH) |
Almost Clear solution |
|
Absorption maximum (in 0.1N NaOH) ?max |
650-654nm |
|
Absorptivity 1%/1cm (in 0.1N NaOH) at ?max |
>650 |
|
Loss On Drying (110°C) |
<3% |
|
Melting Point Range |
238-240 °C(lit.) |
|
Remarks:
Range7.1(brownish)-8.3(blue/green) Water Solubility Insoluble in water. Soluble in ethanol.
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