MSDS Name:Potassium persulfate
Synonym:Anthion; Peroxydisulfuric acid, dipotassium salt; Potassium peroxydisulfate; Potassium persulfate; Dipotassium peroxodisulfate

EMERGENCY OVERVIEW
Harmful if swallowed. Irritating to eyes, respiratory system and skin. May cause sensitization by inhalation and skin contact. Contact with combustible material may cause fire.
Potential Health Effects
Eye:
Causes eye irritation. May cause transient corneal injury.
Skin:
Causes skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.
Ingestion:
May be harmful if swallowed.
Inhalation:
Dust is irritating to the respiratory tract. May cause allergic respiratory reaction.
Chronic:
Prolonged or repeated skin contact may cause sensitization dermatitis and possible destruction and/or ulceration. Repeated exposure may cause allergic respiratory reaction (asthma).

Eyes: 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. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Wash clothing before reuse.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation.
Notes to Physician:

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. Use water with caution and in flooding amounts.
Extinguishing Media:
In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Contact professional fire-fighters immediately.

General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Avoid runoff into storm sewers and ditches which lead to waterways.
Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Remove all sources of ignition. Provide ventilation. Keep combustibles (wood, paper, oil, etc.,) away from spilled material.

Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with clothing and other combustible materials. Do not get on skin or in eyes. Avoid ingestion and inhalation.
Storage:
Do not store near combustible materials. Store in a cool, dry place.
Keep containers tightly closed. Avoid storage on wood floors.

Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 7727-21-1: Belgium - TWA: 0.1 mg/m3 VLE Malaysia: 0.1 mg/m3 TWA Netherlands: 1 mg/m3 MAC (as S2O3) Spain: 0.1 mg/m3 VLA-ED Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate clothing to prevent skin exposure.
Respirators:
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Physical State: Solid
Color: colorless or white
Odor: odorless
pH: Acidic in water (<7)
Vapor Pressure: Not available.
Viscosity: Not applicable.
Boiling Point: Not available.
Freezing/Melting Point: 100 deg C (dec)
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: 100 deg C
Solubility in water: Soluble in water.
Specific Gravity/Density: 2.4770
Molecular Formula: K2S2O8
Molecular Weight: 270.31

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Dust generation.
Incompatibilities with Other Materials:
Reducing agents, combustible materials.
Hazardous Decomposition Products:
Oxygen, oxides of potassium, sulfur oxides (SOx), including sulfur oxide and sulfur dioxide.
Hazardous Polymerization: Will not occur.

RTECS#:
CAS# 7727-21-1: SE0400000 LD50/LC50:
CAS# 7727-21-1: Oral, rat: LD50 = 802 mg/kg.
Carcinogenicity:
Potassium peroxydisulfate - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Dispose of in a manner consistent with federal, state, and local regulations.

IATA
Shipping Name: POTASSIUM PERSULPHATE
Hazard Class: 5.1
UN Number: 1492
Packing Group: III
IMO
Shipping Name: POTASSIUM PERSULPHATE
Hazard Class: 5.1
UN Number: 1492
Packing Group: III
RID/ADR
Shipping Name: POTASSIUM PERSULPHATE
Hazard Class: 5.1
UN Number: 1492
Packing group: III

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN O
Risk Phrases:
R 22 Harmful if swallowed.
R 36/37/38 Irritating to eyes, respiratory system
and skin.
R 42/43 May cause sensitization by inhalation and
skin contact.
R 8 Contact with combustible material may cause
fire.
Safety Phrases:
S 22 Do not breathe dust.
S 24 Avoid contact with skin.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 37 Wear suitable gloves.
WGK (Water Danger/Protection)
CAS# 7727-21-1: 1
Canada
CAS# 7727-21-1 is listed on Canadas DSL List.
CAS# 7727-21-1 is not listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7727-21-1 is listed on the TSCA inventory.