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Rhodamine 6G - Wikipedia

From Wikipedia, the free encyclopedia

Rhodamine 6G Rhodamine 6G (hydrochloride) Names Preferred IUPAC name

9-[2-(Ethoxycarbonyl)phenyl]-N-ethyl-6-(ethylamino)-2,7-dimethyl-3H-xanthen-3-iminium chloride

Other names

Rhodamine 590, R6G, Rh6G, C.I. Pigment Red 81, C.I. Pigment Red 169, Basic Rhodamine Yellow, C.I. 45160

Identifiers CAS Number ChEBI ChEMBL ChemSpider DrugBank ECHA InfoCard 100.012.350 EC Number KEGG PubChem CID RTECS number UNII CompTox Dashboard (EPA) InChI Properties Chemical formula C28H31N2O3Cl Molar mass 479.02 g/mol Appearance dark reddish purple, brown or black crystalline solid Density 1.26 g/cm3 [citation needed] Solubility in water 20 g/L (25 °C) [citation needed] Solubility in methanol 400 g/L [citation needed] Hazards GHS labelling: Pictograms Signal word Warning Hazard statements H301, H302, H318, H410, H411 Precautionary statements P264, P270, P273, P280, P301+P310, P301+P312, P305+P351+P338, P310, P321, P330, P391, P405, P501 Safety data sheet (SDS) External MSDS

Except where otherwise noted, data are given for materials in their

standard state

(at 25 °C [77 °F], 100 kPa).

N verify

(

what is YN

?)

Infobox references

Chemical compound

Rhodamine 6G is a highly fluorescent rhodamine family dye. It is often used as a tracer dye within water to determine the rate and direction of flow and transport. Rhodamine dyes fluoresce and can thus be detected easily and inexpensively with instruments called fluorometers. Rhodamine dyes are used extensively in biotechnology applications such as fluorescence microscopy, flow cytometry, fluorescence correlation spectroscopy and ELISA.

Rhodamine 6G chloride powder mixed with methanol, emitting yellow light under green laser illumination

Rhodamine 6G usually comes in three different forms. Rhodamine 6G chloride is a bronze/red powder with the chemical formula C28H31ClN2O3. Although highly soluble, this formulation is very corrosive to all metals except stainless steel. Other formulations are less soluble, but also less corrosive. Rhodamine 6G perchlorate (C28H31ClN2O7) comes in the form of red crystals, while rhodamine 6G tetrafluoroborate (C28H31BF4N2O3) appears as maroon crystals.[1]

Butanol (40 g/L), ethanol (80 g/L), methanol (400 g/L), propanol (15 g/L), MEG (50 g/L), DEG ( 100 g/L), TEG (100 g/L), isopropanol (15 g/L), ethoxyethanol (25 g/L), methoxyethanol (50 g/L), dipropylene glycol (30 g/L), PEG (20 g/L).[2]

Rhodamine 6G-based dye laser. The dye solution is the orange fluid in the tubes.

Rhodamine 6G is also used as a laser dye, or gain medium, in dye lasers,[3][4] and is pumped by the second (532 nm) harmonic from an Nd:YAG laser, nitrogen laser, or argon ion laser.[5] The dye has a remarkably high photostability, high fluorescence quantum yield (0.95[6]), low cost, and its lasing range has close proximity to its absorption maximum (approximately 530 nm). The lasing range of the dye is 570 to 660 nm with a maximum at 590 nm.[7]

The refractive index of Rhodamine 6G has been determined in recent studies. According to research published in ACS Applied Materials & Interfaces[8] and the Refractive Index Database,[9] the refractive index is 1.87 (k=0.79) for 532 nm wavelength.

  1. ^ "Rhodamine 590*" (PDF). Archived from the original (PDF) on 2009-12-29.
  2. ^ "Rhodamine 6G".
  3. ^ F. P. Schäfer (Ed.), Dye Lasers, 3rd Ed. (Springer-Verlag, Berlin, 1990).
  4. ^ F. J. Duarte and L. W. Hillman (Eds.), Dye Laser Principles (Academic, New York, 1990).
  5. ^ Peterson, O. G.; Tuccio, S. A.; Snavely, B. B. (1970). "cw OPERATION OF AN ORGANIC DYE SOLUTION LASER". Applied Physics Letters. 17 (6): 245–247. doi:10.1063/1.1653384. ISSN 0003-6951.
  6. ^ R. F. Kubin and A. N. Fletcher, "Fluorescence quantum yields of some rhodamine dyes." J. Luminescence 27 (1982) 455
  7. ^ Yarborough, J. M. (1974). "cw dye laser emission spanning the visible spectrum". Applied Physics Letters. 24 (12): 629–630. Bibcode:1974ApPhL..24..629Y. doi:10.1063/1.1655082. ISSN 0003-6951.
  8. ^ Seçkin, S.; Singh, P.; Jaiswal, A.; König, T.A.F. (2023). "Super-radiant SERS enhancement by plasmonic particle gratings". ACS Applied Materials & Interfaces. 15 (36): 43124–43134. doi:10.1021/acsami.3c07532. PMID 37665350. S2CID 261511455.
  9. ^ "Refractive index of C28H31ClN2O3 (Rhodamine 6G) - Seckin". refractiveindex.info.

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