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CHEMISTRY : Chromatography

Dyes: Light Blue FSV 01



PROJECT CODE: 04.22
SECTION: CHROMATOGRAPHY
PROJECT TITLE: Dye characteristics: Light Blue FSV 01
RELEASE DATE: 8 Sep 2009
LAST UPDATE: 8 Sep 2009
VERSION HISTORY: 1.0 - First release



PHYSICAL EXAMINATION:


Dye nick name: Light Blue FSV 01
Scientific name: (not yet identified)
Colour: Light to medium Blue
RGB colour Code : Red:Green:Blue = 40:70:E0
(Same as background of this cell)
Soluble in Water: NO
Soluble in Organic Solvents: YES
Most soluble in: Ethanol
Least soluble in: Kerosene, Formaldehyde
Effect of heat while in solution: None, heat stable till 100C
Rf Value in 60% Ethanol: Rf Top = 0.67 ; Rf Center =0.62
Rf Value in 60% Propanone: Rf Top = _ ; Rf Center = _




CHEMICAL TESTS:


Reagent added Colour change
Hydrochloric Acid: nt
Sulphuric Acid: nt
Nitric Acid: nt
Sodium Hydroxide: nt
Ammonia solution: nt
Sodium Sulphide: nt
Others: n/a




NOTES and OTHER CHARACTERISTICS

  1. First found in Sample INK002 (Black-Ink Permanent Marker) and initially it looked to be the dye Sky Blue 01 but on further investigation it differed slightly in colour and considerably in RF Values.
  2. This dye is given the nick name Light Blue FVT 1 where FVT stands for Fast Violet Trail since when it was seperated by certain solvents (eg 50%-60% Ethanol), it was always located at the tail (= trailing) of the Fast Violet 1 dye, sometimes even merging slightly into it.
  3. Was found in little amounts and consequently was not isolated. Further chemical analysis could not be carred out.

TENTATIVE IDENTIFICATION:

Not yet identified.






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