Activated Charcoal Carbon, Activated Carbon USP BP FCC Manufacturers |
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For MSDS Sheet Click MSDS of Charcoal Activated, Activated Charcoal, Activated Carbon Manufacturers
Activated Charcoal
Activated Carbon
Also IP BP Ph. Eur. USP ACS FCC Food Grades
As per British Pharmacopoeia 2009 ( Activated Charcoal or Activated Carbon )
Activated Charcoal BP
Decolorizing Charcoal
Action and use
Adsorbent.
Obtained from vegetable matter by suitable carbonization processes intended to confer a high adsorption power.
CHARACTERS
Appearance
Black, light powder free from grittiness.
Solubility
Practically insoluble in all usual solvents.
IDENTIFICATION
A. When heated to
redness it burns slowly without a flame.
B. Adsorption power
TESTS
Solution S
To 2.0 g in a conical flask with a ground-glass neck
add 50 ml of dilute hydrochloric acid. Boil gently under a reflux
condenser for 1 h, filter and wash the filter with dilute hydrochloric acid.
Evaporate the combined filtrate and washings to dryness on a water-bath,
dissolve the residue in 0.1 M hydrochloric acid and dilute to 50.0 ml
with the same acid.
Acidity or alkalinity
To 2.0 g add 40 ml of water and boil for 5 min.
Cool, restore to the original mass with carbon dioxide-free water and
filter. Reject the first 20 ml of the filtrate. To 10 ml of the filtrate add 0.25 ml of
bromothymol blue solution and 0.25 ml of 0.02 M sodium hydroxide. The solution is blue. Not
more than 0.75 ml of 0.02 M hydrochloric acid is required to change the
colour of the indicator to yellow.
Acid-soluble substances
Maximum 3 per cent.
To 1.0 g add 25 ml of dilute nitric acid and
boil for 5 min. Filter whilst hot through a sintered glass filter and wash with
10 ml of hot water. Evaporate the combined filtrate and washings to dryness on a water-bath, add to the
residue 1 ml of hydrochloric acid, evaporate to dryness again and dry the
residue to constant mass at 100-105 °C. The residue weighs a maximum of 30 mg.
Alkali-soluble colored substances
To 0.25 g add 10 ml of dilute sodium hydroxide
solution and boil for 1 min. Cool, filter and dilute the filtrate to 10 ml
with water. The solution is not more intensely colored than reference
solution.
Ethanol (96 per cent) soluble substances
Maximum 0.5 per cent.
To 2.0 g add 50 ml of ethanol (96 per cent) and
boil under a reflux condenser for 10 min. Filter immediately, cool, and dilute
to 50 ml with ethanol (96 per cent). The filtrate is not more intensely
colored than reference solution. Evaporate 40 ml of the filtrate to dryness and
dry to constant mass at 100-105 °C. The residue weighs a maximum of 8 mg.
Fluorescent substances
In an intermittent-extraction apparatus, treat 10.0 g
with 100 ml of cyclo-hexane for 2 h. Collect the liquid and dilute to 100 ml with
cyclo-hexane. Examine in ultraviolet light at 365 nm. The fluorescence of the
solution is not more intense than that of a solution of 83 μg of quinine in
1000 ml of 0.005 M sulphuric acid examined under the same conditions.
Sulphides
To 1.0 g in a conical flask add 5 ml of hydrochloric acid
and 20 ml of water. Heat to boiling. The fumes
released do not turn lead acetate paper brown.
Copper
Maximum 25.0 ppm.
Atomic absorption spectrometry.
Lead
Maximum 10.0 ppm.
Atomic absorption
Zinc
Maximum 25.0 ppm.
Loss on drying
Maximum 15 per cent, determined on 1.00 g by drying in
an oven at 120 °C for 4 h.
Sulphated ash
Maximum 5.0 per cent, determined on 1.0 g.
Adsorption power
To 0.300 g in a 100 ml ground-glass-stoppered conical
flask add 25.0 ml of a freshly prepared solution of 0.5 g of phenazone in 50 ml of water. Shake thoroughly for 15 min. Filter and reject the
first 5 ml of filtrate. To 10.0 ml of the filtrate add 1.0 g of potassium
bromide and 20 ml of dilute hydrochloric acid. Using 0.1 ml of
methyl red solution as indicator, titrate with 0.0167 M potassium bromate until the red colour is discharged. Titrate slowly (1 drop every 15 s)
towards the end of the titration. Carry out a blank titration using 10.0 ml of
the phenazone solution.
Minimum 40
g of phenazone is adsorbed per 100 g of activated charcoal, calculated with
reference to the dried substance.
Microbial contamination
Total
viable aerobic count (2.6.12) not more than 103
micro-organisms per gram, determined by plate count.
AS per US Food Chemical Codex FCC ( Activated Carbon or Activated Charcoal )
Carbon Activated FCC
Activated Carbon FCC
DESCRIPTION
Carbon,
Activated ( Also called Activated Carbon or Activated Charcoal ), occurs as a black substance, varying in particle
size from coarse granules to a fine powder. It is a solid, porous, carbonaceous
material prepared by carbonizing and activating organic substances. The raw
materials, which include sawdust, peat, lignite, coal, cellulose residues,
coconut shells, and petroleum coke, may be carbonized and activated at a high
temperature with or without the addition of inorganic salts in a stream of
activating gases such as steam or carbon dioxide. Alternatively, carbonaceous
matter may be treated with a chemical activating agent such as phosphoric acid
or zinc chloride, and the mixture carbonized at an elevated temperature,
followed by removal of the chemical activating agent by water washing. Activated
Carbon ( Activated Charcoal) is insoluble in water and in organic solvents.
Function: Decolorizing agent; taste- and odor-removing agent; purification agent in
food processing.
REQUIREMENTS
Identification
A. Place
about 3 g of powdered sample in a glass-stoppered Erlenmeyer flask containing 10
mL of dilute hydrochloric acid (5%), boil for 30 s, and cool to room
temperature. Add 100 mL of iodine TS, stopper, and shake vigorously for 30 s.
Filter through Whatman No. 2 filter paper, or equivalent, discarding the first
portion of filtrate. Compare 50 mL of the subsequent filtrate with a reference
solution prepared by diluting 10 mL of iodine TS to 50 mL with water, but not
treated with carbon. The color of the carbon-treated iodine solution is no
darker than that of the reference solution, indicating the adsorptivity of the
sample B. Ignite a portion of the sample in air. Carbon monoxide and carbon
dioxide are produced, and an ash remains.
Cyanogen
Compounds: Passes test.
Higher
Aromatic Hydrocarbons: Passes test.
Iodine
Number: Not less than 400.
Lead: Not more than 10 mg/kg.
Water Extractable: Not more than 4.0%.
The following additional Requirements should conform to the representations of the vendor: Loss on Drying and Residue on Ignition.
ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428.
Activated Charcoal USP
Activated Charcoal is the residue from the destructive distillation of various organic materials, treated to increase its adsorptive power.
Microbial limits It meets the requirements of the tests for absence of
Salmonella species and Escherichia coli.
Reaction Boil 3.0 g with 60 mL of water for 5 minutes, allow to cool,
restore the original volume by the addition of water, and filter: the filtrate
is colorless and is neutral to litmus.
Loss on
drying Dry it at 120 for 4 hours: it loses not more than 15.0% of
its weight.
Residue
on ignition: not more than 4.0%, a 0.50-g test specimen being used.
Acid-soluble substances Boil 1.0 g with a mixture of 20 mL of water and 5
mL of hydrochloric acid for 5 minutes, filter into a tarred porcelain crucible,
and wash the residue with 10 mL of hot water, adding the washing to the
filtrate. To the combined filtrate and washing add 1 mL of sulfuric acid,
evaporate to dryness, and ignite to constant weight: the residue weighs not more
than 35 mg (3.5%).
Chloride A 10-mL portion of the filtrate obtained in the test for Reaction
shows no more chloride than is contained in 1.5 mL of 0.020 N hydrochloric acid
(0.2%).
Sulfate A 10-mL portion of the filtrate obtained in the test for Reaction
shows no more sulfate than is contained in 1.0 mL of 0.020 N
sulfuric acid (0.2%).
Sulfide Place 0.50 g in a small conical flask, add 20 mL of water and 5 mL of
hydrochloric acid, and boil gently: the escaping vapors do not darken paper
moistened with lead acetate TS.
Cyanogen
compounds Place a mixture of 5 g of Activated Charcoal, 50 mL of water, and
2 g of tartaric acid in a distilling flask connected to a condenser provided
with a tightly fitting adapter, the end of which dips below the surface of a
mixture of 2 mL of 1 N sodium hydroxide and 10 mL of water, contained in a small
flask surrounded by ice. Heat the mixture in the distilling flask to boiling,
and distill about 25 mL. Dilute the distillate with water to 50 mL, and mix. To
25 mL of the diluted distillate add 12 drops of ferrous sulfate TS, heat the
mixture almost to boiling, cool, and add 1 mL of hydrochloric acid: no blue
color is produced.
Heavy
metals Boil 1.0 g with a mixture of 20 mL of 3 N hydrochloric acid and 5 mL
of bromine TS for 5 minutes, filter, and wash the charcoal and the filter with
50 mL of boiling water. Evaporate the filtrate and washing to dryness, and to
the residue add 1 mL of 1 N hydrochloric acid, 20 mL of water, and 5 mL of
sulfurous acid. Boil the solution until all of the sulfur dioxide is expelled,
filter if necessary, and dilute with water to 50 mL. To 20 mL of the solution
add water to make 25 mL: the limit is 0.005%.
Un-carbonized constituents Boil 0.25 g with 10 mL of 1 N sodium hydroxide
for 5 seconds, and filter: the filtrate is colorless.
Adsorptive power
Alkaloids
Shake 1 g of Activated Charcoal, previously dried at 120 for 4
hours, with a solution of 100 mg of strychnine sulfate in 50 mL of water for 5
minutes, and filter through a dry filter, rejecting the first 10 mL of the
filtrate. To a 10-mL portion of the subsequent filtrate add 1 drop of
hydrochloric acid and 5 drops of mercuric-potassium iodide TS: no turbidity is
produced.
Dyes
Pipette 50 mL of methylene blue solution (1 in 1000) into each of two
glass-stoppered, 100-mL flasks. Add to one flask 250 mg, accurately weighed, of
Activated Charcoal, insert the stopper in the flask, and shake for 5 minutes.
Filter the contents of each flask through a dry filter, rejecting the first 20
mL of each filtrate. Pipette 25-mL portions of the remaining filtrates into two
250-mL volumetric flasks. Add to each flask 50 mL of sodium acetate solution (1
in 10), mix, and add from a burette 35.0 mL of 0.1 N iodine VS, swirling the
mixture during the addition. Insert the stoppers in the flasks, and allow them
to stand for 50 minutes, shaking them vigorously at 10-minute intervals. Dilute
each mixture with water to volume, mix, allow to stand for 10 minutes, and
filter through dry filters, rejecting the first 30 mL of each filtrate. Titrate
the excess iodine in a 100-mL aliquot of each subsequent filtrate with 0.1 N
sodium thiosulfate VS, adding 3 mL of starch TS as the endpoint is approached.
Calculate the number of mL of 0.1 N iodine consumed in each titration: the
difference between the two volumes is not less than 0.7 mL.
Carbon Activated, Activated Carbon Charcoal BP, USP FCC Food grade Manufacturers at:
Muby Chem Ltd.
Toll manufacturing & Warehouse at Houston & Midland, Texas, USA and India
USA, Canada, Mexico Customers may e-mail: usa@mubygroup.com
Call 1-844-682-9243
Europe Africa Asia India Mumbai e-mail: info@mubygroup.com
Call +91-22-23774610
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Carbon, Activated Charcoal Activated Carbon IP BP USP FCC Food grade Manufacturers
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