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Effective Date: 05/19/2008
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Material Safety Data Sheet
PERCHLORIC ACID, 60-70% SOLUTIONS
1. Product Identification
Synonyms: Perchloric acid; perchloric acid soution; dioxonium perchlorate solution;
hydronium perchlorate
CAS No.: 7601-90-3
Molecular Weight: 100.46
Chemical Formula: HCL04, in water
Product Codes: 2764, 2766, 2767
2. Composition/Information on Ingredients
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------
Perchloric Acid 7601-90-3 60 - 70% Yes
Water 7732-18-5 30 - 40% No
3. Hazards Identification
Emergency Overview
--------------------------
DANGER! STRONG OXIDIZER. CONTACT WITH OTHER MATERIAL MAY
CAUSE FIRE OR EXPLOSION. CORROSIVE. CAUSES SEVERE IRRITATION
AND BURNS TO EVERY AREA OF CONTACT. HARMFUL IF SWALLOWED OR
INHALED.
Potential Health Effects
----------------------------------
Inhalation:
Corrosive. Inhalation of vapors or mists will cause irritation with coughing, choking, and
inflammation of the nose, throat, and upper respiratory tract.
Ingestion:
Corrosive. May cause burns of mouth, throat, and stomach, nausea, vomiting and diarrhea.
Skin Contact:
Corrosive. Can cause severe burns with discoloration and pain.
Eye Contact:
Corrosive. Permanent visual damage may occur. Highly corrosive to tissue.
Chronic Exposure:
Repeated exposure to dilute solutions may cause skin rash and possible sensitization.
Aggravation of Pre-existing Conditions:
Persons with pre-existing skin disorders or impaired respiratory function may be more
susceptible to the effects of the substance.
4. First Aid Measures
Inhalation:
Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give
oxygen. Call a physician.
Ingestion:
If swallowed, DO NOT INDUCE VOMITING. Give large quantities of water. Never give
anything by mouth to an unconscious person. Get medical attention immediately.
Skin Contact:
Immediately flush skin with plenty of water for at least 15 minutes while removing
contaminated clothing and shoes. Call a physician, immediately. Wash clothing before reuse.
Eye Contact:
Immediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper
eyelids occasionally. Get medical attention immediately.
5. Fire Fighting Measures
Fire:
Not combustible, but substance is a strong oxidizer and its heat of reaction with reducing
agents or combustibles may cause ignition. Can react with metals to release flammable
hydrogen gas. Reactions may cause fire and explosion. In the event of a fire, assume that
organic materials are involved and that an explosion may occur.
Explosion:
May form sensitive powerful explosive mixtures with organic materials.
Fire Extinguishing Media:
Water spray can be used to extinguish fires and cool fire-exposed containers.
Special Information:
In the event of a fire, wear full protective clothing and NIOSH-approved self-contained
breathing apparatus with full facepiece operated in the pressure demand or other positive
pressure mode.
6. Accidental Release Measures
Ventilate area of leak or spill. Remove all sources of ignition. Wear appropriate personal
protective equipment as specified in Section 8. Isolate hazard area. Keep unnecessary and
unprotected personnel from entering. Contain and recover liquid when possible. Use non-
sparking tools and equipment. Remove spilled perchloric acid by immediate and thorough
washing with large amounts of water. Reduce with a weak reducung agent, (hypobisulfite or
ferrous salt, plus sulfuric acid as an accelerator have been recommended), then neutralize with
sodium carbonate or calcium oxide.
7. Handling and Storage
Reagent bottle - maximum 1 pound, glass-stoppered, glass bottle; kept in a heavy glass tray
with larger capacity. Additional laboratory storage should be in original bottles inside a glass
container padded with glass wool and having greater capacity than the container. Carboys and
large bottles should be stored on acid-resisting noncombustible shelves, in a noncombustible
structure. All storage must be separated from combustible materials, organic materials, strong
dehydrating agents; oxidizing and reducing agents. Perchloric acid must be stored where it
will not freeze (freezing point about -4F). Protect against physical damage. Electrical wiring,
etc., in storage areas must be of watertight type to protect against corrosive action of vapors.
Containers of this material may be hazardous when empty since they retain product residues
(vapors, liquid); observe all warnings and precautions listed for the product.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits:
None established.
Ventilation System:
Do Not Use Perchloric Acid In A Hood Designed For Other Purposes. Please refer to the
ACGIH document, Industrial Ventilation, A Manual of Recommended Practice, most recent
edition, for details on proper ventilation design.
Personal Respirators (NIOSH Approved):
For conditions of use where exposure to the substance is apparent and engineering controls
are not feasble, consult an industrial hygienist. For emergencies, or instances where the
exposure levels are not known, use a full-facepiece positive-pressure, air-supplied respirator.
WARNING: Air purifying respirators do not protect workers in oxygen-deficient
atmospheres. If the exposure limit is exceeded and engineering controls are not feasible, wear
a supplied air, full-facepiece respirator, airlined hood, or full-facepiece self-contained
breathing apparatus. Breathing air quality must meet the requirements of the OSHA
respiratory protection standard (29CFR1910.134).
Skin Protection:
Rubber or neoprene gloves and additional protection including impervious boots, apron, or
coveralls, as needed in areas of unusual exposure.
Eye Protection:
Use chemical safety goggles and/or a full face shield where splashing is possible. Maintain
eye wash fountain and quick-drench facilities in work area.
9. Physical and Chemical Properties
Appearance:
Colorless to yellowish liquid.
Odor:
Odorless.
Solubility:
Infinitely soluble.
Specific Gravity:
1.5-1.6
pH:
No information found.
% Volatiles by volume @ 21C (70F):
100
Boiling Point:
203C (397F)
Melting Point:
-18C (0F)
Vapor Density (Air=1):
3.5
Vapor Pressure (mm Hg):
No information found.
Evaporation Rate (BuAc=1):
No information found.
10. Stability and Reactivity
Stability:
Unstable at ordinary temperature and pressure and can undergo explosive decomposition,
especially at elevated temperatures or if allowed to dehydrate.
Hazardous Decomposition Products:
May emit toxic chloride fumes when heated to decomposition.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Incompatible with numerous materials, including combustible materials, organic chemicals,
strong dehydrating agents, reducing and oxidizing agents. Reacts violently with benzene,
calcium hydride, wood, acetic acid, charcoal, olefins, ethanol, sulfur and sulfuric acid. Do Not
Use Perchloric Acid In A Hood Designed For Other Purposes.
Conditions to Avoid:
Heat, incompatibles.
11. Toxicological Information
Oral rat LD50: 1100 mg/kg.
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Perchloric Acid (7601-90-3) No No None
Water (7732-18-5) No No None
12. Ecological Information
Environmental Fate:
No information found.
Environmental Toxicity:
LC 20/2,000 ppm/goldfish/24hr. This material may be toxic to aquatic life.
13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and
approved waste facility. Although not a listed RCRA hazardous waste, this material may
exhibit one or more characteristics of a hazardous waste and require appropriate analysis to
determine specific disposal requirements. Processing, use or contamination of this product
may change the waste management options. State and local disposal regulations may differ
from federal disposal regulations. Dispose of container and unused contents in accordance
with federal, state and local requirements.
14. Transport Information
Domestic (Land, D.O.T.)
-----------------------
Proper Shipping Name: PERCHLORIC ACID (WITH MORE THAN 50% BUT NOT
MORE THAN 72% ACID, BY MASS)
Hazard Class: 5.1, 8
UN/NA: UN1873
Packing Group: I
International (Water, I.M.O.)
-----------------------------
Proper Shipping Name: PERCHLORIC ACID (WITH MORE THAN 50% BUT NOT
MORE THAN 72% ACID, BY MASS)
Hazard Class: 5.1, 8
UN/NA: UN1873
Packing Group: I
15. Regulatory Information
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Perchloric Acid (7601-90-3) Yes Yes Yes Yes
Water (7732-18-5) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Perchloric Acid (7601-90-3) Yes Yes No Yes
Water (7732-18-5) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Perchloric Acid (7601-90-3) No No No No
Water (7732-18-5) No No No No
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Perchloric Acid (7601-90-3) No No No
Water (7732-18-5) No No No
Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: Yes Fire: Yes Pressure: No
Reactivity: Yes (Mixture / Liquid)
Australian Hazchem Code: 2P
Poison Schedule: None allocated.
WHMIS:
This MSDS has been prepared according to the hazard criteria of the Controlled Products
Regulations (CPR) and the MSDS contains all of the information required by the CPR.
16. Other Information
NFPA Ratings: Health: 3 Flammability: 0 Reactivity: 3 Other: Oxidizer
Label Hazard Warning:
DANGER! STRONG OXIDIZER. CONTACT WITH OTHER MATERIAL MAY CAUSE FIRE OR EXPLOSION.
CORROSIVE. CAUSES SEVERE IRRITATION AND BURNS TO EVERY AREA OF CONTACT. HARMFUL IF
SWALLOWED OR INHALED.
Label Precautions:
Do not get in eyes, on skin, or on clothing.
Do not breathe mist.
Store in a tightly closed container.
Use only with adequate ventilation.
Keep from contact with clothing and other combustible materials.
Do not store near combustible materials.
Remove and wash contaminated clothing promptly.
Wash thoroughly after handling.
Label First Aid:
In case of contact, immediately flush eyes or skin with plenty of water for at least 15 minutes while removing
contaminated clothing and shoes. Wash clothing before reuse. If swallowed, DO NOT INDUCE VOMITING. Give large
quantities of water. Never give anything by mouth to an unconscious person. If inhaled, remove to fresh air. If not
breathing, give artificial respiration. If breathing is difficult, give oxygen. In all cases get medical attention immediately.
Product Use:
Laboratory Reagent.
Disclaimer:
THE INFORMATION CONTAINED IN THIS DATA SHEET IS BASED ON THE DATA AVAILABLE TO PURITAN
PRODUCTS AT THIS TIME. WHILE BELIEVED TO BE ACCURATE, PURITAN PRODUCTS DOES NOT CLAIM IT
TO BE ALL INCLUSIVE. IT IS PROVIDED INDEPENDENT OF ANY SALE OF THE PRODUCT, FOR THE
PURPOSE OF HAZARD COMMUNICATION, AND AS A GUIDE FOR THE APPROPRIATE PRECAUTIONARY
HANDLING OF THE PRODUCT BY PROPERLY TRAINED INDIVIDUALS. IT IS NOT INTENDED TO PROVIDE
PRODUCT PERFORMANCE OR APPLICABILITY INFORMATION, AND NO EXPRESS OR IMPLIED WARRANTY
OF ANY KIND IS MADE WITH RESPECT TO THE PRODUCT, THE UNDERLYING PRODUCT DATA, OR THE
INFORMATION CONTAINED HEREIN. YOU ARE URGED TO OBTAIN MATERIAL SAFETY DATA SHEETS FOR
ALL PRODUCTS YOU BUY, PROCESS, USE OR DISTRIBUTE, AND ARE ENCOURAGED TO ADVISE THOSE
WHO MAY COME IN CONTACT WITH SUCH PRODUCTS OF THE INFORMATION CONTAINED THEREIN.
TO DETERMINE THE APPLICABILITY OR EFFECT OF ANY LAW OR REGULATION WITH RESPECT TO THE
PRODUCT, YOU SHOULD CONSULT WITH YOUR LEGAL ADVISOR OR THE APPROPRIATE GOVERNMENT
AGENCY. WE WILL NOT PROVIDE ADVICE ON SUCH MATTERS, OR BE RESPONSIBLE FOR ANY INJURY OR
DAMAGE RESULTING FROM THE USE OF THE PRODUCT DESCRIBED HEREIN.
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