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Peroxymonosulfuricacid, monopotassium salt

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MSDS
DuPont Chemicals MATERIAL SAFETY DATA SHEET

3661 CR Revised 16-OCT-1996 Printed 10-JAN-1997

??OXONE" MONOPERSULFATE COMPOUN CHEMICAL PRODUCT/COMPANY IDENTIFICATION

Material Identification
"OXONE" is a registered trademark of DuPont.

Corporate MSDS Number DU005614
CAS Number 70693-62-8
CAS Name POTASSIUM HYDROGEN PEROXYMONOSULFATE
SULFATE
Grade TECHNICAL

Tradenames and Synonyms
POTASSIUM MONOPERSULFATE
POTASSIUM PEROXYMONOSULFATE

Company Identification
MANUFACTURER/DISTRIBUTO DuPont
1007 Market Street
Wilmington, DE 19898
PHONE NUMBERS
Product Information 1-800-441-7515
Transport Emergency CHEMTREC: 1-800-424-9300
Medical Emergency 1-800-441-3637

COMPOSITION/INFORMATION ON INGREDIENTS

Components
Material CAS Number %
POTASSIUM PEROXYMONOSULFATE 10058-23-8 43
POTASSIUM BISULFATE 7646-93-7 23
POTASSIUM SULFATE 7778-80-5 29
POTASSIUM PEROXYDISULFATE 7727-21-1 3
MAGNESIUM CARBONATE 546-93-0 2
(Continued)
HAZARDS IDENTIFICATION

Potential Health Effects

Causes skin, eye, nose, and throat irritation. May cause
allergic skin reactions at high concentrations in sensitive
individuals. Ingestion may cause inflammation and damage to
the lining of the stomach, resulting in bleeding.

HUMAN HEALTH EFFECTS:

Skin contact may cause skin irritation with discomfort or
rash and may cause temporary body hair loss in contacted
areas. Allergic skin reactions were observed at high
concentrations, but at lower concentrations of 12 ppm and
150 ppm, no allergic reactions were noted. Eye contact may
cause eye irritation with discomfort, tearing, or blurring
of vision. Inhalation may cause irritation of the upper
respiratory passages with coughing and discomfort. Ingestion
may cause gastritis possibly progressing to necrosis or
hemorrhage.

Individuals with preexisting diseases of the skin or
gastrointestinal tract may have increased susceptibility to
the toxicity of excessive exposures.

Carcinogenicity Information
None of the components present in this material at concentrations
equal to or greater than 0.1% are listed by IARC, NTP, OSHA or ACGIH
as a carcinogen.

FIRST AID MEASURES

First Aid
INHALATION

If inhaled, remove to fresh air. If not breathing, give
artificial respiration. If breathing is difficult, give oxygen.
Call a physician.

SKIN CONTACT
In case of contact, immediately wash skin with soap and water.
Wash contaminated clothing before reuse.

EYE CONTACT
In case of contact, immediately flush eyes with plenty of water
for at least 15 minutes. Call a physician.

INGESTION
If swallowed, do not induce vomiting. Immediately give 2 glasses
of water. Never give anything by mouth to an unconscious person.
Call a physician.

(Continued)

3661 CR FIRE FIGHTING MEASURES

Flammable Properties
Will not burn.

Fire and Explosion Hazards:

Improper storage of large masses of "OXONE" can trap heat
and lead to ignition of combustibles (See section on
"Handling and Storage"). Grinding or intensive mixing may
cause decomposition with liberation of heat and oxygen;
ignition of oxidizable material if present may occur.

Extinguishing Media
Water.

Fire Fighting Instructions
Will release oxygen when heated, intensifying a fire.
Acidic mist may be present; self contained breathing
apparatus should be used.

ACCIDENTAL RELEASE MEASURES

Safeguards (Personnel)
NOTE: Review FIRE FIGHTING MEASURES and HANDLING (PERSONNEL)
sections before proceeding with clean-up. Use appropriate
PERSONAL PROTECTIVE EQUIPMENT during clean-up.

Accidental Release Measures
Sweep up. Flush area with low pressure water.
(see Disposal Considerations)

HANDLING AND STORAGE

Handling (Personnel)
Avoid breathing dust. Avoid contact with eyes, skin, or clothing,
Wash thoroughly after handling.

Storage
Store in a cool, dry, well-ventilated area away from heat
sources such as light fixtures or space heaters.

Pallets of 25 kg. bags can be stacked. Leave open space on
all sides of each pallet to provide ventilation. See local
fire codes for allowable limits. Bulk Bags should be stored
on pallets; if stacked use pyramid style, no more than 2
pallets high.

Closely stacked bags should not exceed a 4 ft.
(1.2m) cube. Keep packages dry. Do not store with
combustible materials or with incompatibles (see
"Incompatibility with Other Materials").
(Continued)

3661 CR EXPOSURE CONTROLS/PERSONAL PROTECTION

Engineering Controls
Use sufficient ventilation to keep employee exposure below
recommended limits.

Personal Protective Equipment
EYE/FACE PROTECTION

Wear safety glasses. Wear coverall chemical splash goggles
and face shield when the possibility exists for eye or face
contact from airborne material.

RESPIRATORS

A NIOSH/MSHA approved air-purifying respirator with a
dust/mist cartridge or canister may be permissible under
certain circumstances where airborne concentrations are
expected to exceed exposure limits. Protection provided by
air purifying respirators is limited. Use a positive
pressure air supplied respirator if there is any potential
for an uncontrolled release, exposure levels are not known,
or any other circumstances where air purifying respirators
may not provide adequate protection.

PROTECTIVE CLOTHING
Wear impervious clothing, such as gloves, apron, boots or
whole bodysuit, made of rubber, as appropriate. Leather
gloves may be used when handling dry material.

# Exposure Guidelines
Exposure Limits
"OXONE" MONOPERSULFATE COMPOUN PEL (OSHA) Particulates (Not Otherwise Regulated)
15 mg/m3, 8 Hr. TWA, total dust
5 mg/m3, 8 Hr. TWA, respirable dust
TLV (ACGIH) None Established
AEL * (DuPont) 1 mg/m3. 8 Hr. TWA

Other Applicable Exposure Limits
POTASSIUM SULFATE
PEL (OSHA) None Established
TLV (ACGIH) None Established
AEL * (DuPont) 10 mg/m3, 8 Hr. TWA

POTASSIUM PEROXYDISULFATE
TLV (ACGIH) 0.1 mg/m3, 8 Hr. TWA

MAGNESIUM CARBONATE
PEL (OSHA) 15 mg/m3, total dust, 8 Hr. TWA
5 mg/m3, respirable dust, 8 Hr. TWA
TLV (ACGIH) 10 mg/m3, total dust, 8 Hr. TWA
AEL * (DuPont) None Established

* AEL is DuPont's Acceptable Exposure Limit. Where governmentally imposed occupational exposure
limits which are lower than the AEL are in effect, such limits shall take precedence.

(Continued)

3661 CR PHYSICAL AND CHEMICAL PROPERTIES

Physical Data
Boiling Point @ 760 mm Hg Decomposes
Vapor Pressure Nil
Vapor Density Not volatile
Melting Point Decomposes
Evaporation Rate (Butyl acetate = 1)
Not volatile
Solubility in Water 25.6 VT% @ 20 C (68 F)
pH 1% solution = 2.3; 3% solution = 2.0
Odor Odorless
Form Granular; free flowing solid
Color White
Specific Gravity 1.1-1.4

STABILITY AND REACTIVITY

Chemical Stability
Stable when handled and stored as indicated.

Incompatibility with Other Materials
The mixture of "OXONE" with compounds containing halides or
active halogens can cause release of the respective halogen
if moisture is present. For example, mixing with sodium
dichloroisocyanurate or with sodium chloride can cause
release of chlorine gas. Mixing with cyanides can cause
release of hydrogen cyanide gas. Mixing with heavy metal
salts such as those of cobalt, nickel, copper, or manganese
can cause decomposition with release of oxygen and heat.

Decomposition
Decomposes when heated or dampened, releasing oxygen and
heat of decomposition.

Polymerization
Polymerization will not occur.

TOXICOLOGICAL INFORMATION

Animal Data
Inhalation 4-hour LC50: >5 mg/1 in rats
Skin absorption LD50 : >11,000 mg/kg in rabbits
Oral LD50: 2,000 mg/kg in rats

The compound is a severe skin and eye irritant. Single
inhalation exposures produced nonspecific effects such as
weight loss and irritation. Repeated inhalation exposures
produced eye irritation and reversible corneal damage. By
ingestion, the administration of large single doses produced
nonspecific effects such as weight loss and irritation as
well as gastric ulceration, necrosis, and hemorrhage. The
compound does not produce genetic damage in bacterial cell
cultures.

(Continued)

3661 CR ECOLOGICAL INFORMATION

Ecotoxicological Information
Aquatic Toxicity

Potassium Sulfate
96-hour Tim, bluegill sunfish: 3,500 mg/L

Magnesium Carbonate
96-hour LC50, species unidentified: >1,000 ppm

DISPOSAL CONSIDERATIONS

Waste Disposal
Comply with Federal, State, and local regulations. Solutions
greater than 3% by weight have a pH < 2.0, and may be a RCRA
hazardous waste upon disposal due to the acidic pH
characteristic of the solution. If approved, flush to sewer
or waste treatment plant. Large quantities should be
neutralized with soda ash.

TRANSPORTATION INFORMATION

Shipping Information
DOT/IMO
Proper Shipping Name CORROSIVE SOLID, ACIDIC, INORGANIC,
N.O.S.
(MONOPERSULFATE COMPOUND)
Hazard Class 8
UN No. 3260
DOT/IMO Label CORROSIVE
Packing Group III

Shipping Containers:

Multiwall Bags
Fiber Pack Drums
Bulk Bags

REGULATORY INFORMATION

U.S. Federal Regulations
TSCA Inventory Status Reported/Included.

TITLE III HAZARD CLASSIFICATIONS SECTIONS 311, 312

Acute: Yes
Chronic: No
Fire: No
Reactivity: No
Pressure: No

LISTS:
(Continued)

3661 CR REGULATORY INFORMATION (Continued)

SARA Extremely Hazardous Substance - NO
CERCLA Hazardous Material - NO
SARA Toxic Chemical - NO

CANADIAN WHMIS CLASSIFICATION:

D2B

CANADA PEST CONTROL PRODUCTS ACT

Registration Number 23137

OTHER INFORMATION

NFPA, NPCA-HMIS
NPCA-HMIS Rating
Health 2
Flammability 0
Reactivity 1

Personal Protection rating to be supplied by user depending on use
conditions.

Additional Information
For further information, see DuPont ??OXONE?? Monopersulfate
Compound Data Sheet

The data in this Material Safety Data Sheet relates only to the
specific material designate herein and does not relate to use in
combination with any other material or in any process.

Responsibility for MSDS :DuPont Chemicals
Address :Engineering & Product Safety
> :P.O. Box 80709, Chesnut Run
> :Wilmington, DE 19880-0709
Telephone :(302) 999-4946

# Indicates updated section.

End of MSDS

3661CR
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