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Metanilic acid
CAS No.: 121-47-1
Synonyms:
Formula: C6H7NO3S
Exact Mass: 173.01500
Molecular Weight: 173.19000
PSA: 88.77000
LogP: 2.17750
Reference Price: $2,903/ton Inquiry Now
Metanilic acid 121-47-1 MSDS
Name: Metanilic acid 99% (Titr.) Material Safety Data Sheet
Synonym: 3-Amino-benzenesulfonic acid; M-Anilinesulfonic acid; Benzenesulfonic acid, 3-amino-
CAS: 121-47-1
Section 1 - Chemical Product   MSDS Name:Metanilic acid 99% (Titr.) Material Safety Data Sheet
Synonym:3-Amino-benzenesulfonic acid; M-Anilinesulfonic acid; Benzenesulfonic acid, 3-amino-

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
121-47-1 Metanilic acid 99 204-473-6
Hazard Symbols: C
Risk Phrases: 20/21/22 34

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Harmful by inhalation, in contact with skin and if swallowed. Causes burns.
Potential Health Effects
Eye:
Causes eye burns. Causes redness and pain.
Skin:
Harmful if absorbed through the skin. Causes skin burns. Causes redness and pain.
Ingestion:
Harmful if swallowed. Causes gastrointestinal tract burns. The toxicological properties of this substance have not been fully investigated. Methemoglobinemia is characterized by dizziness, drowsiness, headache, shortness of breath, cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood), rapid heart rate and chocolate-brown colored blood. May form methemoglobin which in sufficient concentration causes cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood).
Inhalation:
Causes chemical burns to the respiratory tract. The toxicological properties of this substance have not been fully investigated.
Methemoglobinemia is characterized by dizziness, drowsiness, headache, shortness of breath, cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood), rapid heart rate and chocolate-brown blood. Inhalation of aniline causes anoxia due to the formation of methemoglobin. Harmful if inhaled.
Chronic:
May cause methemoglobinemia, which is characterized by chocolate-brown colored blood, headache, weakness, dizziness, breath shortness, cyanosis (bluish skin due to deficient oxygenation of blood), rapid heart rate, unconsciousness and possible death. Chronic exposure may cause effects similar to those of acute exposure.

Section 4 - FIRST AID MEASURES
  Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Wash mouth out with water.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:
Treat symptomatically and supportively.

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or appropriate foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale.
Use only in a chemical fume hood. Discard contaminated shoes.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 121-47-1: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Crystalline powder
Color: white
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: > 300 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C6H7NO3S
Molecular Weight: 173.19

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Dust generation.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong reducing agents, strong bases, strong acids.
Hazardous Decomposition Products:
Carbon monoxide, oxides of nitrogen, oxides of sulfur, carbon dioxide.
Hazardous Polymerization: Has not been reported

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 121-47-1: OY2300000 LD50/LC50:
CAS# 121-47-1: Draize test, rabbit, eye: 500 mg/24H Mild.
Carcinogenicity:
Metanilic acid - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Ecotoxicity:
Fish: Pseudomonas putida:

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: CORROSIVE SOLID, ORGANIC, N.O.S.
Hazard Class: 8
UN Number: 3261
Packing Group: III
IMO
Shipping Name: CORROSIVE SOLID, ORGANIC, N.O.S.
Hazard Class: 8
UN Number: 3261
Packing Group: III
RID/ADR
Shipping Name: CORROSIVE SOLID, ORGANIC, N.O.S.
Hazard Class: 8
UN Number: 3261
Packing group: III

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 20/21/22 Harmful by inhalation, in contact with
skin and if swallowed.
R 34 Causes burns.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 28A After contact with skin, wash immediately with
plenty of water.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 121-47-1: 1
Canada
CAS# 121-47-1 is listed on Canada's NDSL List.
CAS# 121-47-1 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 121-47-1 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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