94% Textile Dyestuffs materials indigo blue for fabric dying

General Information:
Indigo blue is an important organic dye, for dyeing on cotton fabrics and jeans and making up indigo bromide,or made into organic
BASIC DETAILS:Indigo
Blue:coloring
matler
index
C.1
revert
blue
(73000)
1. C.I. NO. 730002. CAS NO. 482-89-33. APPEARANCE: BLUE POWDER OR GRANULAR4. STRENGTH: 80%~94%
5. MOISTURE:
ABOUT
0.45%
6. DETERMEINE:103PPM~112PPM
7.MF: C16H10N2O2
8. EINECS No.: 207-586-9
9. Type: Vat Dye
10.HS
Coding:
32041510
11.Relative
molecular
weight:262.27(according
to
the
International
molecular
weight
of
1983)

Nature:
The
appearance
is
dark
blue
even
grains.It
dissolves
in
hot
anilin,but
not
in
water. It
turns
yellow
green
when
meeting
the
oil
of
vitriol. It
is
yellow
in
alkaline
rongalite
revert
liquid
and
white
in
acidic
liquid.Specification:
Use:
It
is
mainly
used
to
dye
cotton
fibre
.The
pop
"cowboy"
clothes
mostly
are
made
by
indigo
blue
dying
longitudinal
yarn
and
white
yarn
interweaving;It
can
be
used
with
sulfurated
coloring
matter;Also
we
can
get
indigo
white,
bromized
indigo
blue
from
it,
they
are
well
used
in
food
coloring
matter,
biochemistry
etc.
Packages:
25KG Plastic-Woven Bag with double polyester liner.

Storage & Transportation:
The product must be stored in shade, dry & well-ventilated warehouse. Avoid to be contacted with oxidizing chemicals and combustible organic substances. Keep it away from direct sunlight, heat, sparks and open flames. Carefully handle the product and avoid damaging the package.