|
TECHNICAL
DATA FLT YELLOW/GREEN
|
|
Bright
Dyes Yellow/Green
Dye 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 dye
and has been used
for labeling studies
since 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
|
Dye Tablets
|
Dye Liquids
|
Dye 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
