|
 
|
|
|
TECHNICAL
DATA FLT YELLOW/GREEN
|
|
Bright Dyes
Yellow/Green products are specially formulated
versions of Xanthene dye, certified by NSF
International to ANSI/NSF Standard 60 for use in
drinking water. This dye is the traditional
fluorescent water tracing and leak detection
material and has been used for labeling studies
from the beginning of the century. It may be
detected visually, by UV light and by appropriate
fluoremetric equipment. Today it is most often used
visually. This dye has been used by the military to
mark downed pilots for search and rescue operations
over large water bodies. Visually the dye appears
yellow/green, depending on its concentration and
under UV light as lime green.
Based on
biochemical oxygen demand (BOD) studies, the dye is
biodegradable with 65% of the available oxygen
consumed in 7 days. The dye is resistant to
absorption on most suspended matter in fresh and
salt water. However, compared to Bright Dyes FWT
Red products it is significantly less resistant to
degradation by sunlight and when used in
fluoremetry, stands out much less clearly against
background fluorescence. As always the suitability
of these products for any specific application
should be evaluated by a qualified hydrologist or
other industry professional.
|
General
Properties
|
Tablets
|
Liquids
|
Powders
|
|
Detectability
of active ingredient 1
|
Visual
<100 ppb
|
Visual
<100 ppb
|
Visual
<100 ppb
|
|
Absorption/Emission
|
490/520
nm
|
490/520
nm
|
490/520
nm
|
|
Appearance
|
Orange
convex 1.6cm diameter
|
Reddish-brown
aqueous solution
|
Orange
fine powder
|
|
NSF,
max use levels in potable
water
|
6.0
ppb
|
10.0
ppb
|
1.0
ppb
|
|
Weight
|
1.35
gms + 0.05
|
n/a
|
n/a
|
|
Dissolution
Time 3
|
95%
< 6 minutes
|
Immediately
|
50%
< 3 minutes 95% < 6
minutes
|
|
Specific
Gravity
|
n/a
|
1.05 +
0.05 @ 25° C
|
n/a
|
|
Viscosity
4
|
n/a
|
1.8
cps
|
n/a
|
|
pH
|
n/a
|
8.5 +
0.5 @ 25° C
|
n/a
|
|
Coverage
of Products
|
One
Tablet
|
One
Pint Liquid
|
One
Pound Powder
|
|
Light
Visual (100 ppb)
|
605
gallons
|
125,000
gallons
|
1,200,000
gallons
|
|
Strong
Visual (1 ppm)
|
60
gallons
|
12,500
gallons
|
120,000
gallons
|
Caution: These
products may cause irritation and/or staining if
allowed to come in contact wit the skin. The use of
gloves and goggles is recommended when handling
this product, as with any other dye or
chemical.
To our best
knowledge the information and recommendations
contained herein are accurate and reliable.
However, this information and our recommendations
are furnished without warranty, representation,
inducement, or license of any kind, including, but
not limited to the implied warranties and fitness
for a particular use or purpose. Customers are
encouraged to conduct their own tests and to read
the material safety data sheet carefully before
using.
|
