1. Thus were born the azo dyestuffs, perhaps the greatest single discovery in the history of the dyestuffs industry.

2. Aqueous insoluble azo dyes and pigments are determined volumetrically.

3. A dark red to purple azo dye.

4. The wastewater containing azo dye was treated by internal electrolysis.

5. IR, UV and fluorescence spectrum of the two azo pyrogallol reagents were studied.

6. Azo dyestuff formed by (1) has great color tone, macromolecule extinction coefficient and good storage stability, so it can be made into imaging dye stuff and colorant.

7. The triphenylamine azo compounds were successfully characterized by matrix-assisted laser desorption-ionization time of flight mass spectrometry(MALDI-TOF MS).

8. The cationic dye may be chosen from azo dyes, azomethine dyes, methine dyes and xanthene dyes.

9. OH radicals mainly attack the azo group and the aryl ring bearing methylamino group, forming corresponding OH-adducts.

10. Heterocyclic azo dyes are one group of the most important chromogenic reagents in spectrophotometric analysis.

11. Nylon fastening tapes with AZO free are available for 108 colours.

12. Must pass azo, cadmium, PCP, chlororganic carrier , disperse dies , nickel free for metal details.

13. The polarographic behaviour of an azo compound produced by the reaction of Methy amine phosphorus (MAP) with 8 hydroxyquinoline(Oxin), in the ammonia medium has been studied.

14. Reducing degradation rates of azo dyes and chloroorganics by the electrogalvanizing zinc plate were greatly increased under the irradiation of an iodinetungsten lamp.

15. All non azo dye ingredients, in line with environmental standards.

16. The trans - cis photoisomerization of azobenzene is the basis of photo - responsive properties of many azo - functional materials.

17. Recent advances in azo - dye - degrading bacteria and azo reductase were reviewed.

18. Enhanced action of azo dyes decolourization by quinone - reducing community using redox mediators was inspected.

19. Because of the photoisomerization of azo dyes, this system shows many unique characteristics, which could not be explained by existing theories.

20. It is well known that azo molecules can undergo trans-cis-trans isomerization cycles under the irradiation at the wavelength lying in the absorption region.

21. The photo - catalytic degradation of an azo - dye acid red G.

22. The synthesis of Poly(N-vinyl carbazole) with azo chromophore side groups was studied.

23. The synthesis methods of azo copper complex reactive dyes were studied,[http:///azo.html] especiallycontaining the ethyl sulfate groups.

24. A series of azo hydroxyporphyrin - oxadiazole compounds were synthesized and characterized by 1 HNMR, FAB - MS, IR and UV - Vis spectra.

25. The polymerization of styrene in O/W, W/O, and BC microemulsions was investigated by using the water - soluble potassium persulfate and oil-soluble azo - bis - isobutyronitrile(AIBN) as initiators.

26. Organic dyes related in this review included the following categories, the triphenylmethane , the azo dyes, the phthalocyanines, the hydroxyanthraguinones and etc(58 ref. cite).

27. It was found that the oxidation rate of the azo dye molecules is related to its adsorption amount on the surface of composite electrode.

28. So it was necessary to avoid the interference of thermal energy when test azo compound's photochromism.

29. We analyzed theoretically and computed numerically the transmission spectrum of azo - benzene doped POF LPG.

30. The organic dye of the invention has fast response to laser and excellent photo-thermal stability, can effectively replace cancerogenic azo dye, and has extensive application prospect.

31. The results showed that the azo dyeing removal rate by direct aerobic treatment was only about 5%, while the average degradation rate of the dyeing by direct anaerobic hydrolysis reached to 60%.

32. An acid yellow was synthesized diazo and azo, and characterized by elementary analysis, IR and 1 H - NMR.

33. On the second part of the azo different nitrile synthesis of formamide.

34. Some technologies to treat azo dye wastewater are introduced in this paper, especially the characters and application of genetic engineering technology and bioaugmentation.

35. First, the azo dye with N-hydroxyethyl functional group in coupling components is taken as the raw material to have acryloyl reaction, to obtain hair color monomer.

36. The data of the time resolved fluorescent spectra and fluorescent life time of an organic optical disk named the azo dye doped thin film are given.

37. Hydrotalcite-like compounds have stacked layers of laminated structure, Using this structure to solve the problem azo compounds become an important part of the study.

38. Dyestuff: anthraquinone, black ferric oxide, indigo blue pigment, butyric acid, titanium hydroxide, zinc sulfide, all kinds of intermediate of azo dye - stuff.

39. Its reason is certain azo dyes meeting generation guides aromatics amine, cause cancer thereby.

40. Azo dye wastewater is hard to degrade due to its high content of organic compounds, its complexity of the components and high chroma.

41. It is pointed out that preparation of 2,5 - TDAs starting from o - toluidine (OT) through diazo- coupling of OT and reductive hydrogenative cleavage of OT azo compound is the prior technology.

42. A novel materials design procedure based on the co-doping of metal nanoparticle and azo dye compound (MNPADC) is developed to improve the properties of functional molecules.

43. In order to overcome the disadvantage of low rubfastness of conventional pigment dyeing , a new type covering pigment with ultramicro azo dye as core and acrylate adhesive as shell was presented.

44. AZO is deposited by electronic beam evaporation on the K 9 substrates.

45. Decolorization metabolite of acid red B can replace quinone compounds to act as a redox mediator and accelerate azo dye decolorization.

46. Also, the principle of action of the composite electrode and oxidation degradation process of the azo dye molecules were discussed.

47. The result from fluorescence spectra indicated that this azo dye could bind with HSA and quench the fluorescence of HSA.

48. Second, we put research emphasis on the micro - mechanism of interaction between azo - dye and phase.

49. Average optical transmittance of AZO thin films is from 85% to 90% in the visible light region.

50. The results showed that the photoconductivity of AZO nanoparticles was improved greatly compared to that of bulk AZO due to nanometer size effect.

51. Silk fabric printing mmau - stannochlor of amino azo dye to do reflection, resistance to stannochlor formula for.

52. The decoloration effect of wastewater containing azo dye(reactive brilliant red X-3B) by white rot fungus was primarily discussed.

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53. Results prove that the degree of decoloring varies decreasingly with the dye structure in the(following) sequence: azo dyes, anthraquinone dyes, metal complex dyes, and cationic dyes.

54. In this paper, the development of using bi azo chromotropic acids as chromogenic reagents in RE determination was reviewed, especially the new reagents introduced after 1990.

55. The tautomeric equilibrium between the azo type and the hydrazone type of these compounds in different solvents and different acidity has also been studied.

56. This paper presents the results of the decolorization of azo dye K2G by the electrochemical process catalyzed by manganese mineral.

57. An azo dye grafted pullulan has been synthesized. The structure of the modified pullulan was characterized by FTIR spectroscopies.

58. Moreover, the reaction path, activation energies and equilibrium constance during the tautomerized reaction involving hydrazone form and azo form are obtained.

59. A variety anthraquinone azo dyes have been synthesized by coupling 1 - aminoanthraquinone with 2 - hydroxy - 3 - naphthanilides .

60. Azoic dyeing consists of reacting two components, neither of which itself is a dye, with one another inside the fiber to form an azo pigment.

61. If dyeing wastewater, especially azo dye wastewater is let, it will seriously do harm to local aquatic environment.

62. This paper investigates an optical reorientation process of azo dye doped liquid crystals and explains the dependence of the enhancement factor on the incident light direction.

63. The invention relates to azo dye acrylic ester, and copolymer emulsion coating dyeing water-borne binder and a preparation method thereof.

64. Some low alcohols with different azo - chains were linked up with polymaleic anhydride to prepare bipolar polymaleates.

65. Azo sensitizing dyes takes an important role in the properties of photorefractive polymer composite.

66. Meanwhile, a thin - layer chromatography for detecting those prohibited azo dyes in textiles is presented.