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GSP Chemical Industries

GSP Chemical Industries
location Palghar, Maharashtra

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Our Products

  1. Industrial Chemicals 14 Products available
  2. Natural Dyes 8 Products available
  3. Catalysts And Absorbents 8 Products available
  4. Ores And Minerals 6 Products available
  5. Chemical Compound 6 Products available
  6. Inorganic And Organic Solvents 5 Products available
  7. Industrial Dyes 4 Products available
  8. Pigments 4 Products available
  9. Acid Dyes 4 Products available
  10. Azo Dyes 3 Products available
  11. Laboratory Chemicals 3 Products available
  12. Dyes & Pigments 2 Products available
  13. Dye Additives 2 Products available
  14. Textile Chemicals 1 Products available
  15. Direct Dyes 1 Products available
  16. Food Colors 1 Products available
  17. Color Pigment 1 Products available
  18. Beverages 1 Products available
  19. Fresh Fruits 1 Products available
  20. Citrus Fruit 1 Products available
  21. Cloth Pegs & Hangers 1 Products available
  22. Reactive Dyes 1 Products available
  23. Basic Dyes 1 Products available
  24. Pharmaceutical Raw Materials 1 Products available
  25. PH Meter 1 Products available
  26. Others Products 18 Products available

Natural Dyes

We are leaders in the market for providing best range of EVANS BLUE, Eosin Blue, Alizarin Complexone, AZURE II and Pararosaniline Hydrochloride

Evans Blue

Evans Blue
  • C.A.S. No. 314-13-6
  • CI NO. 23680
  • M.F. C34H24N6Na4O14S4
  • M.W. 960.82gm/mole
  • Dye Content (by Spectrophotometry) >85%
  • Solubility 0.1 % (Dist. Water) Clear solution
  • Absorption maximum (Dist. water) ?max 605-611nm
  • Absorptivity (A1% 1cm in water, at ?max, on dried substance) >800
  • Loss On Drying (110°C) <10%
  • Suitability for microscopy Passes test
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Eosin Blue

Eosin Blue
  • C.A.S. No. 548-24-3
  • CI NO. 45400
  • M.F. C20H6Br2N2Na2O9
  • M.W. 624.09gm/mole
  • Dye content (By Gravimetry) >85%
  • Solubility 0.1 % (Dist. Water) Clear solution
  • Absorption maximum (Dist. water) ?max 516-520nm
  • Absorptivity (A1%1cm in water at ?max) >800
  • Loss On Drying (110°C) <8%
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Alizarin Complexone

Alizarin Complexone
  • C.A.S. No. 3952-78-1
  • M.F. C19H15NO8
  • M.W. 412.36gm/mole
  • Solubility in 0.1% (0.1N NaOH) Clear solution
  • Absorption Max (0.1N NaOH) ?max 564-568nm
  • Absorptivity (A1%,1cm, in 50% Ethanol) >250
  • Loss On Drying (110°C) <10%
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AZURE II

AZURE II
  • C.A.S. No. 37247-10-2
  • M.F. C16H18N3S · C16H18N3S ·2 Cl
  • M.W. 625.68gm/mole
  • Solubility 0.1% (Dist. Water) Clear solution
  • Absorption Maximum (Dist. Water) ?max 655-660nm
  • Absorptivity(A1%/1cm,in water at ?max on dried substance) >1800
  • Loss On Drying (110°C) <12%
  • Suitability for Microscopy Passes Test
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Pararosaniline Hydrochloride

Pararosaniline Hydrochloride
  • C.A.S. No. 569-61-9
  • CI NO. 42500
  • M.F. C19H18ClN3
  • M.W. 323.83gm/mole
  • Dye Content (by Spectrophotometry) >88%
  • Solubility 0.1 % (50% EtOH) Clear solution
  • Absorption Maximum (50% EtOH) ?max 545-548nm
  • Absorptivity (A1%/1cm in 50% EtOH, at ?max) >2550
  • Loss on drying (110°C) <10%
  • Suitability for microscopy Passes test
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1-Naphtholphthalein

1-Naphtholphthalein
  • C.A.S. No. 596-01-0
  • M.F. C28H18O4
  • M.W. 418.45gm/mole
  • 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 236-240°C

Chemical Name

3, 3-bis(4-hydroxynaphthalen-1-yl)-1, 3-dihydro-2-benzofuran-1-one

 

InChI Key

HQHBAGKIEAOSNM-UHFFFAOYSA-N

 

Solubility

Practically insoluble in water; soluble in ethanol

 

a-Naphtholphthalein is used as a pH indicator and operates in the pH ranges between 7.3 and 8.7.

 

Applications:

Optical carbon dioxide sensor based on the colorimetric change of pH indicator a-naphtholphthalein with the internal reference fluorescent CIS/ZnS qua.It is also used in the designing of optical carbon dioxide sensor based on fluorescence intensity.a-Naphtholphthalein has been described for use in the design of an optical CO2 sensor based on the fluorescence intensity changes of Tetraphenylporphyrin (sc-215304) due to absorption changes of alpha-Naphtholphthalein embedded in a polymer.

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