Name:
Chlorosulfonic acid 97%
Synonym:
CAS:
7790-94-5
Section 1 - Chemical Product
MSDS Name:Chlorosulfonic acid 97%
Synonym:
Synonym:
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 7790-94-5 | Chlorosulfonic acid | 97% | 232-234-6 |
| Hazard Symbols: C Risk Phrases: 14 35 37 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Reacts violently with water. Causes severe burns. Irritating to respiratory system.Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye:
Causes severe eye burns. Lachrymator (substance which increases the flow of tears).
Skin:
Causes skin burns.
Ingestion:
Causes gastrointestinal tract burns.
Inhalation:
Causes chemical burns to the respiratory tract.
Chronic:
Not available.
Reacts violently with water. Causes severe burns. Irritating to respiratory system.Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye:
Causes severe eye burns. Lachrymator (substance which increases the flow of tears).
Skin:
Causes skin burns.
Ingestion:
Causes gastrointestinal tract burns.
Inhalation:
Causes chemical burns to the respiratory tract.
Chronic:
Not available.
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.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Skin:
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
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. Strong oxidizer. Contact with other material may cause fire. Containers may explode in the heat of a fire. Reacts violently with water.
Extinguishing Media:
DO NOT USE WATER! Use dry chemical.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Strong oxidizer. Contact with other material may cause fire. Containers may explode in the heat of a fire. Reacts violently with water.
Extinguishing Media:
DO NOT USE WATER! Use dry chemical.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container.
Section 7 - HANDLING and STORAGE
Handling:
Do not allow water to get into the container because of violent reaction. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
Keep from contact with clothing and other combustible materials.
Storage:
Do not store near combustible materials. Store in a cool, dry place.
Store in a tightly closed container. Keep under a nitrogen blanket.
Corrosives area.
Do not allow water to get into the container because of violent reaction. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
Keep from contact with clothing and other combustible materials.
Storage:
Do not store near combustible materials. Store in a cool, dry place.
Store in a tightly closed container. Keep under a nitrogen blanket.
Corrosives area.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 7790-94-5: United Kingdom, WEL - TWA: 1 mg/m3 TWA United Kingdom, WEL - STEL: 3 mg/m3 STEL Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 7790-94-5: United Kingdom, WEL - TWA: 1 mg/m3 TWA United Kingdom, WEL - STEL: 3 mg/m3 STEL Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Liquid
Color: clear slight yellow - slightly oily
Odor: unpleasant odor
pH: Not available.
Vapor Pressure: Not available.
Viscosity: 3 cP 16 deg C
Boiling Point: 151 - 152 deg C @ 755.00mm Hg
Freezing/Melting Point: -80 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: 3.30 vol %
Explosion Limits, upper: 37.70 vol %
Decomposition Temperature: >151 deg C
Solubility in water: reacts with water forming sulfuric and
Specific Gravity/Density: 1.7530g/cm3
Molecular Formula: ClSO3H
Molecular Weight: 116.52
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials, combustible materials, exposure to moist air or water.
Incompatibilities with Other Materials:
Acids, bases, alcohols, amines, finely powdered metals, plastics, rubber.
Hazardous Decomposition Products:
Hydrogen chloride, oxides of sulfur.
Hazardous Polymerization: Has not been reported
Not available.
Conditions to Avoid:
Incompatible materials, combustible materials, exposure to moist air or water.
Incompatibilities with Other Materials:
Acids, bases, alcohols, amines, finely powdered metals, plastics, rubber.
Hazardous Decomposition Products:
Hydrogen chloride, oxides of sulfur.
Hazardous Polymerization: Has not been reported
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 7790-94-5: FX5730000 LD50/LC50:
CAS# 7790-94-5: Oral, rat: LD50 = 50 mg/kg.
Carcinogenicity:
Chlorosulfonic acid - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 7790-94-5: FX5730000 LD50/LC50:
CAS# 7790-94-5: Oral, rat: LD50 = 50 mg/kg.
Carcinogenicity:
Chlorosulfonic acid - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: CHLOROSULPHONIC ACID
Hazard Class: 8
UN Number: 1754
Packing Group:
IMO
Shipping Name: CHLOROSULPHONIC ACID
Hazard Class: 8
UN Number: 1754
Packing Group: I
RID/ADR
Shipping Name: CHLOROSULPHONIC ACID
Hazard Class: 8
UN Number: 1754
Packing group: I
USA RQ: CAS# 7790-94-5: 1000 lb final RQ; 454 kg final RQ
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 14 Reacts violently with water.
R 35 Causes severe burns.
R 37 Irritating to respiratory system.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
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# 7790-94-5: 2
Canada
CAS# 7790-94-5 is listed on Canadas DSL List.
CAS# 7790-94-5 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7790-94-5 is listed on the TSCA inventory.
