Name:
Perchloric acid p.a.
Synonym:
Dioxonium perchlorate; Perchloric acid solution
CAS:
7601-90-3
Section 1 - Chemical Product
MSDS Name:Perchloric acid p.a.
Synonym:Dioxonium perchlorate; Perchloric acid solution
Synonym:Dioxonium perchlorate; Perchloric acid solution
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 7601-90-3 | Perchloric acid | 60-72 | 231-512-4 |
| Hazard Symbols: O C Risk Phrases: |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Causes severe burns. Heating may cause an explosion. Contact with combustible material may cause fire.Corrosive.Hygroscopic.
Potential Health Effects
Eye:
Causes eye burns.
Skin:
Causes skin burns.
Ingestion:
Causes gastrointestinal tract burns. May be harmful if swallowed.
Inhalation:
Causes severe respiratory tract irritation with possible burns.
Chronic:
Prolonged or repeated skin contact may cause sensitization dermatitis and possible destruction and/or ulceration.
Causes severe burns. Heating may cause an explosion. Contact with combustible material may cause fire.Corrosive.Hygroscopic.
Potential Health Effects
Eye:
Causes eye burns.
Skin:
Causes skin burns.
Ingestion:
Causes gastrointestinal tract burns. May be harmful if swallowed.
Inhalation:
Causes severe respiratory tract irritation with possible burns.
Chronic:
Prolonged or repeated skin contact may cause sensitization dermatitis and possible destruction and/or ulceration.
Section 4 - FIRST AID MEASURES
Eyes: In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Get medical aid immediately.
Skin:
Destroy contaminated shoes. In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid immediately. Wash clothing before reuse.
Ingestion:
If swallowed, do NOT induce vomiting. Get medical aid immediately.
If victim is fully conscious, give a cupful of water. Never give anything by mouth to an unconscious person.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Skin:
Destroy contaminated shoes. In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid immediately. Wash clothing before reuse.
Ingestion:
If swallowed, do NOT induce vomiting. Get medical aid immediately.
If victim is fully conscious, give a cupful of water. Never give anything by mouth to an unconscious person.
Inhalation:
If inhaled, remove to fresh air. 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 combustible materials may cause a fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. Some oxidizers may react explosively with hydrocarbons(fuel). Contact with metals may evolve flammable hydrogen gas. May decompose explosively when heated or involved in a fire. Fight fire from protected location or maximum possible distance.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.
Use flooding quantities of water.
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 combustible materials may cause a fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. Some oxidizers may react explosively with hydrocarbons(fuel). Contact with metals may evolve flammable hydrogen gas. May decompose explosively when heated or involved in a fire. Fight fire from protected location or maximum possible distance.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.
Use flooding quantities of water.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section. Neutralize spill with sodium bicarbonate. Remove all sources of ignition. Absorb spill using an absorbent, non-combustible material such as earth, sand, or vermiculite. Do not use combustible materials such as saw dust. Flush spill area with water. Wet area to prevent drying out. Provide ventilation. Keep combustibles (wood, paper, oil, etc.,) away from spilled material.
Keep unnecessary and unprotected personnel away. Use only non-sparking tools and equipment.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section. Neutralize spill with sodium bicarbonate. Remove all sources of ignition. Absorb spill using an absorbent, non-combustible material such as earth, sand, or vermiculite. Do not use combustible materials such as saw dust. Flush spill area with water. Wet area to prevent drying out. Provide ventilation. Keep combustibles (wood, paper, oil, etc.,) away from spilled material.
Keep unnecessary and unprotected personnel away. Use only non-sparking tools and equipment.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use spark-proof tools and explosion proof equipment. Avoid contact with clothing and other combustible materials. Do not get on skin or in eyes. Do not ingest or inhale.
Use only with adequate ventilation. Do not allow perchloric acid to come into contact with strong dehydrating agents (concentrated sulfuric acid, anhydrous phosphorous pentoxide, etc.). Keep the quantities of perchloric acid handled at the bare minimum for safety.
Perchloric acid should be handled in a masonry building with concrete or tile floors. Handling acid on wooden floors is dangerous, especially after the acid has dried. The wooden floor will then become sensitive to ignition by friction. Perchloric acid mist and vapor can condense in ventilation systems to form metallic perchlorates, which can be explosive. Inform laundry personnel of contaminants hazards.
Storage:
Do not store near combustible materials. Store in a tightly closed container. Do NOT freeze. Store in a cool, dry area away from incompatible substances. Avoid storage on wood floors. Perchloric acid should be stored segregated from all other chemicals & inside secondary containment (such as pyrex baking dish). It must not be stored near organic acids, near bases, or near other organic or flammable material. Shelves and floor material should be non-combustible and acid-resistant.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use spark-proof tools and explosion proof equipment. Avoid contact with clothing and other combustible materials. Do not get on skin or in eyes. Do not ingest or inhale.
Use only with adequate ventilation. Do not allow perchloric acid to come into contact with strong dehydrating agents (concentrated sulfuric acid, anhydrous phosphorous pentoxide, etc.). Keep the quantities of perchloric acid handled at the bare minimum for safety.
Perchloric acid should be handled in a masonry building with concrete or tile floors. Handling acid on wooden floors is dangerous, especially after the acid has dried. The wooden floor will then become sensitive to ignition by friction. Perchloric acid mist and vapor can condense in ventilation systems to form metallic perchlorates, which can be explosive. Inform laundry personnel of contaminants hazards.
Storage:
Do not store near combustible materials. Store in a tightly closed container. Do NOT freeze. Store in a cool, dry area away from incompatible substances. Avoid storage on wood floors. Perchloric acid should be stored segregated from all other chemicals & inside secondary containment (such as pyrex baking dish). It must not be stored near organic acids, near bases, or near other organic or flammable material. Shelves and floor material should be non-combustible and acid-resistant.
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. Any procedure involving heating of perchloric acid must be conducted in a perchloric acid fume hood, with the sash down. No organic materials should be stored in the perchloric acid hood.
Personal Protective Equipment Eyes: Wear chemical goggles and face shield. Use chemical splash and impact-rated goggles.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirators use.
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Any procedure involving heating of perchloric acid must be conducted in a perchloric acid fume hood, with the sash down. No organic materials should be stored in the perchloric acid hood.
Personal Protective Equipment Eyes: Wear chemical goggles and face shield. Use chemical splash and impact-rated goggles.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirators use.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Liquid
Color: clear, colorless
Odor: odorless
pH: Not available.
Vapor Pressure: Not available.
Viscosity: mPas 20 deg C
Boiling Point: 203 deg C @ 760 mm Hg
Freezing/Melting Point: -18 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: soluble in water
Specific Gravity/Density: 1.6600 g/cm3
Molecular Formula: HClO4
Molecular Weight: 100.46
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Combines vigorously with water with the evolution of heat. This material is a strongly acidic, powerful oxidizing substance. The anhydrous form of this material is an explosion hazard.
Conditions to Avoid:
Excess heat, temperatures above 220C, heating to decomposition, Do not allow water to evaporate from product..
Incompatibilities with Other Materials:
Acids, Acetic Anhydride, Alcohols, Aniline and Formaldehyde, Antimony III Compounds, Bismuth, Cellulose, Charcoal, Dibutyl Sulfoxide, Diethyl Ether, Dimethyl Sulfoxide, Fluorine, Glycerine and Lead Oxide, Glycol Ethers, Glycols, Hydriodic Acid, Hydrogen, Hypophosphites, Ketones, Methyl Alcohol, Nitrogen Iodide, Nitrosophenol, Organic Materials, Paper, Phosphorus Pentoxide, Phosphorus Pentoxide and Chloroform, Sodium Iodide, Steel, Sulfoxides, Sulfur Trioxide, Wood. May react violently or explosively with many of these compounds.
Hazardous Decomposition Products:
Chlorine dioxide, which may be spontaneously explosive.
Hazardous Polymerization: Has not been reported.
Combines vigorously with water with the evolution of heat. This material is a strongly acidic, powerful oxidizing substance. The anhydrous form of this material is an explosion hazard.
Conditions to Avoid:
Excess heat, temperatures above 220C, heating to decomposition, Do not allow water to evaporate from product..
Incompatibilities with Other Materials:
Acids, Acetic Anhydride, Alcohols, Aniline and Formaldehyde, Antimony III Compounds, Bismuth, Cellulose, Charcoal, Dibutyl Sulfoxide, Diethyl Ether, Dimethyl Sulfoxide, Fluorine, Glycerine and Lead Oxide, Glycol Ethers, Glycols, Hydriodic Acid, Hydrogen, Hypophosphites, Ketones, Methyl Alcohol, Nitrogen Iodide, Nitrosophenol, Organic Materials, Paper, Phosphorus Pentoxide, Phosphorus Pentoxide and Chloroform, Sodium Iodide, Steel, Sulfoxides, Sulfur Trioxide, Wood. May react violently or explosively with many of these compounds.
Hazardous Decomposition Products:
Chlorine dioxide, which may be spontaneously explosive.
Hazardous Polymerization: Has not been reported.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 7601-90-3: SC7500000 CAS# 7732-18-5: ZC0110000 LD50/LC50:
Not available.
Not available.
Carcinogenicity:
Perchloric acid - Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Water - Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Other:
See actual entry in RTECS for complete information.
CAS# 7601-90-3: SC7500000 CAS# 7732-18-5: ZC0110000 LD50/LC50:
Not available.
Not available.
Carcinogenicity:
Perchloric acid - Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Water - Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Ecotoxicity:
LC100 Cyprinus carprio 180 ppm/24H @ 25 deg. C.
LC100 Cyprinus carprio 180 ppm/24H @ 25 deg. C.
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: PERCHLORIC ACID
Hazard Class: 5.1
UN Number: 1873
Packing Group: I
IMO
Shipping Name: PERCHLORIC ACID
Hazard Class: 5.1
UN Number: 1873
Packing Group: I
RID/ADR
Shipping Name: PERCHLORIC ACID
Hazard Class: 5.1
UN Number: 1873
Packing group: I
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: O C
Risk Phrases:
R 35 Causes severe burns.
R 5 Heating may cause an explosion.
R 8 Contact with combustible material may cause
fire.
Safety Phrases:
S 23 Do not inhale gas/fumes/vapour/spray.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 36 Wear suitable protective clothing.
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# 7601-90-3: 1
CAS# 7732-18-5: No information available.
United Kingdom Occupational Exposure Limits
United Kingdom Maximum Exposure Limits
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 7601-90-3 is not listed on Canadas Ingredient Disclosure List.
CAS# 7732-18-5 is not listed on Canadas Ingredient Disclosure List.
Exposure Limits
CAS# 7601-90-3: OEL-CZECHOSLOVAKIA:TWA 1 mg/m3;STEL 2 mg/m3
US FEDERAL
TSCA
CAS# 7601-90-3 is not listed on the TSCA inventory.
It is for research and development use only.
CAS# 7732-18-5 is not listed on the TSCA inventory.
It is for research and development use only.
