Material Safety Data Sheet
Perchloric acid, 50-72%

ACC# 18230
Section 1 - Chemical Product and Company Identification

MSDS Name: Perchloric acid, 50-72%
Catalog Numbers: AC223310000, AC223310010, AC223312500, AC424030000, AC424030010, AC424032500, A228-7LB, A2286-1LB, A228S-7LB, A229-8LB, A2296-1LB, A229S-8LB, A469-1, A469-2, A469-250, A469-500, A511-212, A511-500, A511SK-212, S76875ACS-1, S76875ACS-2
Synonyms:
Dioxonium perchlorate; Perchloric acid solution; Hydronium perchlorate.
Company Identification:

              Fisher Scientific
              1 Reagent Lane
              Fair Lawn, NJ 07410
For information, call:
201-796-7100
Emergency Number:
201-796-7100
For CHEMTREC assistance, call:
800-424-9300
For International CHEMTREC assistance, call:
703-527-3887

Section 2 - Composition, Information on Ingredients

CAS# Chemical Name Percent EINECS/ELINCS
7601-90-3 Perchloric acid 50-72 231-512-4
7732-18-5 Water 28-50 231-791-2

Section 3 - Hazards Identification

EMERGENCY OVERVIEW

Appearance: clear, colorless liquid.
Danger! Strong oxidizer. Contact with other material may cause a fire. Heating may cause an explosion. Contact with other material may cause explosion. Causes eye and skin burns. Causes digestive and respiratory tract burns. Corrosive to metal.
Target Organs: Eyes, thyroid, skin, mucous membranes.


Potential Health Effects
Eye: Causes eye burns.
Skin: Causes skin burns.
Ingestion: Harmful if swallowed. Causes gastrointestinal tract burns.
Inhalation: Causes severe respiratory tract irritation with possible burns.
Chronic: Prolonged or repeated skin contact may cause dermatitis.

Section 4 - First Aid Measures


Eyes: In case of contact, immediately flush eyes with plenty of water for a t 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: 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. Strong oxidizer. Contact with other material may cause 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 spray.
Flash Point: Not applicable.
Autoignition Temperature: Not applicable.
Explosion Limits, Lower:Not available.
Upper: Not available.
NFPA Rating: (estimated) Health: 3; Flammability: 0; Instability: 3; Special Hazard: OX

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. 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 sawdust. 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. Spill may be carefully neutralized with soda ash (sodium carbonate).

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 contaminant's hazards.
Storage: Do not store near combustible materials. Store in a tightly closed container. Store in a cool, dry, well-ventilated 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. Protect from freezing.

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.
Exposure Limits
Chemical Name ACGIH NIOSH OSHA - Final PELs
Perchloric acid none listed none listed none listed
Water none listed none listed none listed

OSHA Vacated PELs: Perchloric acid: No OSHA Vacated PELs are listed for this chemical. Water: No OSHA Vacated PELs are listed for this chemical.
Personal Protective Equipment
Eyes: Wear chemical splash goggles and face shield.
Skin: Wear appropriate 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: Liquid
Appearance: clear, colorless
Odor: strong odor
pH: Not available.
Vapor Pressure: 0.9 kPa @ 20 deg C
Vapor Density: 3.46 (air=1)
Evaporation Rate:Not available.
Viscosity: Not available.
Boiling Point: 203 deg C @ 760 mmHg
Freezing/Melting Point:-18 deg C
Decomposition Temperature:Not available.
Solubility: Soluble.
Specific Gravity/Density:1.41-1.67
Molecular Formula:HClO4
Molecular Weight:100.46

Section 10 - Stability and Reactivity


Chemical Stability: This material is a strongly acidic, powerful oxidizing substance. The anhydrous form of this material is an explosion hazard. Perchloric acid is stable at concentrations below 73%.
Conditions to Avoid: Excess heat, Do not allow water to evaporate from product..
Incompatibilities with Other Materials: Metals, strong reducing agents, bases, acetic acid, acetic anhydride, alcohols, dimethyl sulfoxide, fluorine, sulfuric acid, diethyl ether, hypophosphites, phosphorus pentoxide, hydrochloric acid, organic materials, ketones, wood, combustible materials.
Hazardous Decomposition Products: Chlorine dioxide, which may be spontaneously explosive.
Hazardous Polymerization: Will not occur.

Section 11 - Toxicological Information


RTECS#:      
CAS# 7601-90-3: SC7500000      
CAS# 7732-18-5: ZC0110000
LD50/LC50:
CAS# 7601-90-3:
     Oral, rat: LD50 = 1100 mg/kg;
.

CAS# 7732-18-5:
     Oral, rat: LD50 = >90 mL/kg;
.
Oral, dog: LD50 = 400 mg/kg excitement, difficult breathing, decrease in body temperature.
Carcinogenicity:
CAS# 7601-90-3: Not listed by ACGIH, IARC, NTP, or CA Prop 65.
CAS# 7732-18-5: Not listed by ACGIH, IARC, NTP, or CA Prop 65.

Epidemiology: No information available.
Teratogenicity: Administration of potassium perchlorate KClO4 experimentally to pregnant guinea pigs, rabbits, & rats has been reported to result in enlarged fetal thyroids, consistent with transplacental passage of perchlorate. Administration of up to 1% KClO4 indrinking water during early pregnancy did not interfere with blastocyst implantation or pregnancy success in rats. Detailed morphologic evaluation of offspring was not reported. In both a 2-generation reproductive tox study in rats & a developmental toxstudy in rabbits, respective KClO4 doses up to 30 & 100 mg/kg/day were not found to have adverse effects on reproduction or development.
Reproductive Effects: No information available.
Mutagenicity: No information available.
Neurotoxicity: No information available.
Other Studies:

Section 12 - Ecological Information


Ecotoxicity: No data available. LC100 Cyprinus carprio 180 ppm/24H @ 25°C.
Environmental: There has been concern that perchlorate environmental contamination could result in hypothyroidism in the population.
Physical: No information available.
Other: No information available.

Section 13 - Disposal Considerations

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.

Section 14 - Transport Information

US DOT Canada TDG
Shipping Name: PERCHLORIC ACID PERCHLORIC ACID
Hazard Class: 5.1 5.1(8)
UN Number: UN1873 UN1873
Packing Group: I I

Section 15 - Regulatory Information

US FEDERAL

TSCA
     CAS# 7601-90-3 is listed on the TSCA inventory.
     CAS# 7732-18-5 is listed on the TSCA inventory.
Health & Safety Reporting List
     None of the chemicals are on the Health & Safety Reporting List.
Chemical Test Rules
     None of the chemicals in this product are under a Chemical Test Rule.
Section 12b
     None of the chemicals are listed under TSCA Section 12b.
TSCA Significant New Use Rule
     None of the chemicals in this material have a SNUR under TSCA.
CERCLA Hazardous Substances and corresponding RQs
     None of the chemicals in this material have an RQ.
SARA Section 302 Extremely Hazardous Substances
     None of the chemicals in this product have a TPQ.
SARA Codes
     CAS # 7601-90-3: immediate, fire.
Section 313      No chemicals are reportable under Section 313.
Clean Air Act:
     This material does not contain any hazardous air pollutants.
     This material does not contain any Class 1 Ozone depletors.
     This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
     None of the chemicals in this product are listed as Hazardous Substances under the CWA.
     None of the chemicals in this product are listed as Priority Pollutants under the CWA.
     None of the chemicals in this product are listed as Toxic Pollutants under the CWA.
OSHA:
     CAS# 7601-90-3 is considered highly hazardous by OSHA.
STATE
     CAS# 7601-90-3 can be found on the following state right to know lists: New Jersey, Pennsylvania, Massachusetts.
     CAS# 7732-18-5 is not present on state lists from CA, PA, MN, MA, FL, or NJ.

California Prop 65

California No Significant Risk Level: None of the chemicals in this product are listed.

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.
Canada - DSL/NDSL
     CAS# 7601-90-3 is listed on Canada's DSL List.
     CAS# 7732-18-5 is listed on Canada's DSL List.
Canada - WHMIS
     This product has a WHMIS classification of C, E.
This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the MSDS contains all of the information required by those regulations.
Canadian Ingredient Disclosure List
     CAS# 7601-90-3 is listed on the Canadian Ingredient Disclosure List.

Section 16 - Additional Information

MSDS Creation Date: 5/13/1999
Revision #9 Date: 2/11/2008

The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall Fisher be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if Fisher has been advised of the possibility of such damages.