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Potassium persulfate
CAS No.: 7727-21-1
Synonyms:
Formula: K2O8S2
Exact Mass: 269.83100
Molecular Weight: 270.32200
PSA: 149.62000
LogP: 0.01660
Reference Price: $2,032/ton Inquiry Now
Potassium persulfate 7727-21-1 MSDS
Name: Potassium Persulfate Reagent ACS (Crystals) 99+% (Titr.) Material Safety Data Sheet
Synonym: Anthion; Peroxydisulfuric acid, dipotassium salt; Potassium peroxydisulfate; Potassium persulfat
CAS: 7727-21-1
Section 1 - Chemical Product   MSDS Name:Potassium Persulfate Reagent ACS (Crystals) 99+% (Titr.) Material Safety Data Sheet
Synonym:Anthion; Peroxydisulfuric acid, dipotassium salt; Potassium peroxydisulfate; Potassium persulfat

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
7727-21-1 Potassium peroxydisulfate >99 231-781-8
Hazard Symbols: XN O
Risk Phrases: 22 36/37/38 8

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Harmful if swallowed. Irritating to eyes, respiratory system and skin. Contact with combustible material may cause fire.
Potential Health Effects
Eye:
May cause severe eye irritation. May cause conjunctivitis. May cause permanent corneal opacification.
Skin:
May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. May cause severe irritation and possible burns.
Ingestion:
May cause burns to the gastrointestinal tract. May be harmful if swallowed. May cause nausea, vomiting, and diarrhea, possibly with blood.
Inhalation:
Dust is irritating to the respiratory tract. May cause asthmatic attacks due to allergic sensitization of the respiratory tract. May cause acute pulmonary edema, asphyxia, chemical pneumonitis, and upper airway obstruction caused by edema.
Chronic:
Prolonged or repeated skin contact may cause sensitization dermatitis and possible destruction and/or ulceration. Repeated exposure may cause allergic respiratory reaction (asthma).

Section 4 - FIRST AID MEASURES
  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:

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. 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.

Section 6 - ACCIDENTAL RELEASE MEASURES
  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.

Section 7 - HANDLING and STORAGE
  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:
Keep away from heat, sparks, and flame. Do not store near combustible materials. Store in a cool, dry place. Keep containers tightly closed.

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. Use adequate ventilation to keep airborne concentrations low.
Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear a chemical apron. 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.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
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: Decomposes
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: 270.3118

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, ignition sources, dust generation, combustible materials, reducing agents.
Incompatibilities with Other Materials:
Reducing agents.
Hazardous Decomposition Products:
Oxygen, oxides of potassium, sulfur oxides (SOx), including sulfur oxide and sulfur dioxide.
Hazardous Polymerization: Will not occur.

Section 11 - TOXICOLOGICAL INFORMATION
  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.
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
 

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
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

Section 15 - REGULATORY INFORMATION
 
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 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
United Kingdom Occupational Exposure Limits
CAS# 7727-21-1: OES-United Kingdom, TWA 1 mg/m3 TWA (measured as
S2O8)
United Kingdom Maximum Exposure Limits
Canada
CAS# 7727-21-1 is listed on Canada's DSL List.
CAS# 7727-21-1 is not listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 7727-21-1: OEL-DENMARK:TWA 2 mg/m3
OEL-UNITED KINGDOM:TWA 1 mg/m3
OEL-UNITED KINGDOM:TWA 1 mg/m3 JANUARY 1993
US FEDERAL
TSCA
CAS# 7727-21-1 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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