General Description

• OSHA IMIS Code Number: A106
  
• Chemical Abstracts Service (CAS) Registry Number: 6375-55-9
  
• NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: DV3910000; 20689
  
• Chemical Description and Physical Properties:
  • molecular weight: 760.76
    
  • molecular formula: C32H26N[

General Description:


[size=medium]Synonyms: C.I. Solvent Yellow 3; Acetoquinone Light Yellow; C.I. 11855; Disperse Yellow G; Disperse Yellow Z; NCI-C53781; Yellow Z; N-(4-((2-Hydroxy-5-Methylphenyl)Azo)Phenyl)Acetamide; Fast Yellow GD

OSHA IMIS Code Number: C722

Chemical Abstracts Service (CAS) Registry Number: 2832-40-8

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: AC3662000; 905[

General Description:


Synonyms: Elemental phosphorus, White phosphorus

OSHA IMIS Code Number: 2090

Chemical Abstracts Service (CAS) Registry Number: 7723-14-0

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TH3500000; 59636 

[size=medium]Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN1381 136 Flammable Solid [/size

Hello again. 


I've got a uv-vis spectrogram of a yellow coloured solution. What I'm having difficulty with is that there is no lambda max peak to help me work out the frequency: it's just a steady slope very similar to this one: www.trinity.edu/fwalmsle/MandMPictures/YellowDyeSpectrum.bmp

[size=medium]I'm not sure how to interpret this. I am inclined to suppose that there is just an increasing absorbance of wavelengths, and that if I were to