Synonyms: Activated Charcoal or Carbon Activated
CAS Number: 7440-44-0,
Molecular Weight: 12.01,
Chemical Formula: C,
EINECS EC Number: 231-153-3
Activated carbon, also called activated charcoal, is a form of carbon processed to have small, low-volume pores that increase the surface area available for adsorption or chemical reactions.
Due to its high degree of microporosity, just one gram of activated carbon has a surface area in excess of 3,000 square meters. Activated carbon is usually derived from charcoal.
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.
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, 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 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 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: 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, 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, adding 3 mL of starch 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.
Synonyms: Activated carbon; Charcoal, activated, powder; carbon black; Carboraffin; Carborafine
CAS No.: 7440-44-0
EINECS EC Number: 231-153-3
Molecular Weight: 12.01
Chemical Formula: C
Recommended usage: Industrial Manufacturing.
GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Classification according to Regulation (EC) No 1272/2008
Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008.
This substance is not classified as dangerous according to Directive 67/548/EEC.
Labeling according to GHS & Regulation (EC) No 1272/2008
GHS Label Elements NONE |
Signal Word: None
Hazards not otherwise classified (HNOC):
May causes mild skin irritation.
May causes mild eye irritation.
Precautionary statements:
P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
P262: Do not get in eyes, on skin, or on clothing.
P281: Use personal protective equipment as required.
P302+P352 - IF ON SKIN: Wash with plenty of soap and water.
P303+P361+P353 - IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P304 + P340 - IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337+313: If eye irritation persists get medical advice/attention.
Components: Activated Charcoal; Activated Carbon
CAS No.: 7440-44-0
EINECS EC Number: 231-153-3
EYES: Immediately flush with large amount of water.
SKIN:Immediately flush affected area with water. Wash clothing.
INHALATION: Remove to fresh air.
INGESTION: Induce vomiting as directed by medical personnel.
Flash Point : N/A
Ignition Temperature: Not known
Fire and Explosion Hazards: When burned, hazardous products of combustion including oxides of carbon can occur. Irritating and/or toxic gases due to decomposition of the product may be generated during a fire. Contact with strong oxidizers such as ozone or liquid oxygen may cause rapid combustion.
Extinguishing Media:Dry chemical, water spray or fog, foam or carbon dioxide.
Fire Fighting Procedures: Wear full protective clothing and NIOSH approved self-contained breathing apparatus.
Leak or Spill: When leaks or spills of Activated Charcoal; Activated Carbon occur, clean up in a fashion that does not dissipate dust into air. Manage in accordance with good industrial hygiene and safety practices such as avoiding unnecessary exposure and removal of material from skin, clothing and eyes.
Keep Activated Charcoal or Carbon in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Keep away from moisture and oxidizers. Avoid dust dispersal.
Wet Activated Charcoal; Activated Carbon depletes oxygen from the air and therefore dangerously low levels of oxygen may be encountered in confined spaces. Work procedures for potentially low oxygen areas should be followed.
Containers of this Activated Charcoal may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.
Respiratory protection: Where airborne exposure is probable, use NIOSH approved respiratory protection equipment suitable to the material.
Skin Protection: Avoid skin contact. Wear appropriate dust resistant clothing. Wash clothes and related equipment before reuse. Completely wash skin after handling. Wear gloves and long sleeve shirts to prevent long term exposure.
Eye Protection: Safety glasses with side panels are required for any form of handling. Provide an eye flushing station nearby.
Airborne Exposure Guidelines: OSHA and ACGIH have not established exposure limits for this material. However, OSHA and ACGIH have established limits for nuisance dusts which are 15 mg/m total dust and 5mg/ m respirable dust. The ACGIH TLV/TWA for nuisance dusts called particulates not otherwise classified (PNOC) is 10 mg/m inhaleable particulate and 3 mg/m respirable particulate.
Appearance: Activated Charcoal, Activated Carbon is fine black powder.
Odor: Odorless.
Solubility: Insoluble in water.
Specific Gravity: 1.8 - 2.1
pH: 5.0-10.0
% Volatile by volume @ 21C (70F): 0
Boiling Point: Sublimes.
Melting Point: 3550C (6422F)
Vapor Density (Air=1): 0.4
Vapor Pressure (mm Hg): 1 @ 3586C (6487F)
Hazardous Decomposition: Oxides of carbon (CO & C02).
Hazardous Polymerization: Does not occur.
Stability: Activated carbon is determined stable under the outlined conditions of storage, shipment and use.
Incompatibility: Rapid combustion is possible when in contact with strong oxidizers such as ozone, liquid oxygen, chlorine, etc.
Oral LD50 >5g/kg (rats), LD50 Intravenous - Mouse - 440 mg/kg.
Carcinogenicity: No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC, ACGIH, OSHA and NTP.
Ecotoxicological information: Because Activated Charcoal is a relatively inert substance and is insoluble in water, it is not expected to pose significant ecological hazards.
Results of PBT and vPvB assessment: This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
Recover, reclaim or recycle when practical. Activated Charcoal; Activated Carbon alone is not classified as a hazardous waste (activated carbon used to adsorb hazardous substances may become hazardous due to the chemicals it has adsorbed). Dispose of Activated Charcoal; Activated Carbon in accordance with federal, state and local regulations.
DOT (US): Not dangerous goods
ADR/RID: Not dangerous goods
IMDG: Not dangerous goods
IATA: Not dangerous goods
USA: SARA 302: No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302.
SARA 313: This material does not contain any chemical components with CAS numbers that exceed the threshold (De Minimis) reporting levels established by SARA Title III, Section 313.
SARA 311/312 Hazards: No SARA Hazards
Canada - DSL/NDSL: CAS# 7440-44-0 is listed on Canada's DSL List.
WHMIS: This product has a WHMIS classification of B6, D2B.
EINECS EC Number: 231-153-3
DISCLAIMER: The information and recommendations set forth herein (hereinafter "Information") are presented in good faith and believed correct as of the date hereof. It is compiled from various sources and it is not necessarily all inclusive nor fully adequate in every circumstance. In addition, these suggestions should not be confused with nor followed in violation of applicable laws, regulations, rules or insurance requirements applicable. This SDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose.