R.A.Y.

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Chemical Name:
R.A.Y.

Surface Used On:
Non-porous surfaces.

Sensitive To:
Cyanoacrylate deposit.

Development Color:	Method to Record:	Hazard:	Protective Clothing:	Fume Hood Use:
Orange fluoresence	Orange or Red filter.			Yes

Reagent Characteristics

Development Complete When:

Source of Error:

Incompatibilities:

Precautions:

Storage Container:

Safety:

Recommendations:

Similar Reagents

R.A.Y. FORMULA:

R.A.Y. WORKING SOLUTION
(Combine in the order listed.)


 .5 g  Basic Yellow 40 dye
 10 ml Glacial acetic acid
.05 g  Rhodamine 6 dye
  4 ml Ardrox P133D
450 ml Isopropanol 
	- or -
       denatured Ethanol
 40 ml Acetonitrile

PROCEDURE OF APPLICATION

1.
Spray, dip, or use a squirt 
bottle to apply R.A.Y. 

2.
Examination under a laser or 
Forensic Light Source at 
450 nm to 550 nm. 
Use orange or red 
colored goggles.

3.
Photograph results using 
orange  or red barrier filter.

Ridge Detail Visualized by:

Forensic Light Source induced.

Reagent Applicabilities:

Post-Cyanoacrylate
Non-Porous surfaces
Fluorescent technique

Other Chemical Name(s):

None

Working Solution Shelf-life:

Six (6) months.

Process Summary:
A mixture of fluorescent dye-stains used to enhance cyanoacrylate-developed latent prints. A fluorescent light source that will output light between 365 nm and 550 nm is required for this process.

Accepted Deviations:
The excitation wavelength may be varied to determine which produces the best fluorescence.

Supporting Reference Materials:
1. Minutiae Magazine, Summer Special 1994, Issue No. 24, pg.5.

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