Potassium persulfate

270.32200

269.83100

231-781-8

6B86K0MCZC

1133

1492

DTXSID4029690

COLORLESS, TRICLINIC CRYSTALS|WHITE CRYSTALS

2833400000

149.62000

0.01660

Potassium persulfate appears as a white crystalline solid. Specific gravity 2.477. Decomposes below 100°C.

2.477 g/cm³

100ºC

1689ºC

NotºCombustible

INDICES OF REFRACTION: 1.461, 1.467, 1.566

Solubility in water, g/100ml at 20°C: 5.2

Keep containers closed and store in cool dark places.

9.3 (vs air)

LD50 orally in Rabbit: 802 mg/kg

ODORLESS

AQUEOUS SOLN IS ACIDIC

Decomposes below 100 °C

Water soluble. Slowly decomposed by water. The salt rapidly liberates oxygen when heated, and especially so when wet.

Oxidizing Agents, Strong

Strong Oxidizing Agent

POTASSIUM PERSULFATE is an oxidizing agent. Noncombustible but accelerates the burning of combustible material. Potassium persulfate plus a little potassium hydroxide and water released sufficient heat and oxygen to ignite a polythene (polyethylene) liner in a container. [MCA Case History 1155. 1955].

III

5.1

UN 1492

1

R22; R36/37/38; R42/43; R8

S22-S24-S26-S37

TT5900000

Xn

Cool. Dry. Well closed. Separated from combustible substances, reducing agents and strong bases.

Stable. Strong oxidizer. Incompatible with strong reducing agents, organic materials, combustible materials.

P220-P261-P280-P305 + P351 + P338-P342 + P311

H272-H302-H315-H317-H319-H334-H335

Use vast volume of concentrated solution of reducing agent (bisulfites or ferrous salts with 3M sulfuric acid or hypo). Neutralize with soda ash or dilute hydrogen chloride. Drain into a sewer with abundant water.

POTASSIUM PERSULFATE PLUS A LITTLE POTASSIUM HYDROXIDE & WATER IGNITED POLYTHENE (POLYETHYLENE) LINER OF CONTAINER BY SIMULTANEOUS RELEASE OF HEAT & OXYGEN.|Explosive reaction with chlorates and perchlorates at room temperature in the presence of water; Combustion reaction with metallic dust, such as aluminum, in the presence of moisture; Combustion reaction with sulfur when heated with percussion in the presence of moisture.|The material reacts with moisture to form ozone and sulfuric acid causing explosion in the closed containers.

Excerpt from ERG Guide 140 [Oxidizers]: These substances will accelerate burning when involved in a fire. Some may decompose explosively when heated or involved in a fire. May explode from heat or contamination. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard. (ERG, 2016)|Not combustible but enhances combustion of other substances. Gives off irritating or toxic fumes (or gases) in a fire. Risk of fire and explosion on contact with combustible substances.|Reactive - 1st degree

|Danger|H272: May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]|P210, P220, P221, P261, P264, P270, P271, P272, P280, P285, P301+P312, P302+P352, P304+P340, P304+P341, P305+P351+P338, P312, P321, P330, P332+P313, P333+P313, P337+P313, P342+P311, P362, P363, P370+P378, P403+P233, P405, and P501|H272 (100%): May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]|Aggregated GHS information provided by 1095 companies from 32 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|P210, P220, P221, P260, P261, P264, P270, P271, P272, P280, P285, P301+P312, P302+P352, P304+P340, P304+P341, P309+P311, P312, P321, P330, P332+P313, P333+P313, P342+P311, P362, P363, P370+P378, P403+P233, P405, and P501

Excerpt from ERG Guide 140 [Oxidizers]: SMALL FIRE: Use water. Do not use dry chemicals or foams. CO2 or Halon® may provide limited control. LARGE FIRE: Flood fire area with water from a distance. Do not move cargo or vehicle if cargo has been exposed to heat. Move containers from fire area if you can do it without risk. FIRE INVOLVING TANKS OR CAR/TRAILER LOADS: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2016)|In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep drums, etc., cool by spraying with water.

Excerpt from ERG Guide 140 [Oxidizers]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. LARGE SPILL: Consider initial downwind evacuation for at least 100 meters (330 feet). FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 140 [Oxidizers]: Keep combustibles (wood, paper, oil, etc.) away from spilled material. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Do not get water inside containers. SMALL DRY SPILL: With clean shovel, place material into clean, dry container and cover loosely; move containers from spill area. SMALL LIQUID SPILL: Use a non-combustible material like vermiculite or sand to soak up the product and place into a container for later disposal. LARGE SPILL: Dike far ahead of liquid spill for later disposal. Following product recovery, flush area with water. (ERG, 2016)

Excerpt from ERG Guide 140 [Oxidizers]: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing will only provide limited protection. (ERG, 2016)|Wear rubber gloves, a face shield and coveralls. Prepare full body shields in case of severe reactions.

POTASSIUM PERSULFATE PLUS A LITTLE POTASSIUM HYDROXIDE & WATER IGNITED POLYTHENE (POLYETHYLENE) LINER OF CONTAINER BY SIMULTANEOUS RELEASE OF HEAT & OXYGEN.

Cover with reducing agents such as hypo, bisulfites or ferrous salts. Bisulfites or ferrous salts need additional promoter of some 3M sulfuric acid to accelerate reaction. Transfer the slurry (or sludge) into a large container of water and neutralize with soda ash. Drain into a sewer with abundant water.

/GUIDE 140: OXIDIZERS/ Fire or Explosion: These substances will accelerate burning when involved in a fire. Some may decompose explosively when heated or involved in a fire. May explode from heat or contamination. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard.|/GUIDE 140: OXIDIZERS/ Health: Inhalation, ingestion or contact (skin, eyes) with vapors or substance may cause severe injury, burns or death. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause pollution.|/GUIDE 140: OXIDIZERS/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate closed spaces before entering.|/GUIDE 140: OXIDIZERS/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing will only provide limited protection.|For more DOT Emergency Guidelines (Complete) data for POTASSIUM PERSULFATE (8 total), please visit the HSDB record page.

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./|The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

STRONG IRRITANT

Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Do NOT absorb in saw-dust or other combustible absorbents. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Cautiously neutralize remainder. Wash away remainder with plenty of water.

Cool. Dry. Well closed. Separated from combustible substances, reducing agents and strong bases.

Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered.

The substance is irritating to the eyes, skin and respiratory tract. Inhalation of dust may cause asthma-like reactions.

Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation may cause asthma. May cause a general allergic reaction, such as urticaria or shock.

NO contact with combustible substances.

PREVENT DISPERSION OF DUST! STRICT HYGIENE!

Use local exhaust or breathing protection.

Protective gloves. Protective clothing.

Wear safety goggles or eye protection in combination with breathing protection.

ANTISEPTIC

Excerpt from ERG Guide 140 [Oxidizers]: Inhalation, ingestion or contact (skin, eyes) with vapors or substance may cause severe injury, burns or death. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause pollution. (ERG, 2016)

Excerpt from ERG Guide 140 [Oxidizers]: Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. Contaminated clothing may be a fire risk when dry. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. Keep victim calm and warm. (ERG, 2016)

Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.

First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

ONLY ONE INSTANCE OF BURN OF HUMAN CORNEA SEEMS TO HAVE BEEN RECORDED AND THIS HEALED IN 48 HR. NO DETAILS HAVE BEEN FURNISHED.|MODERATE IRRITANT & ALLERGEN.

K2S2O8

The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

Cough. Wheezing. Sore throat. Laboured breathing.

Redness. Pain.

Redness. Pain.

ARTICLE OF COMMERCE CONTAINS 93-97% POTASSIUM PERSULFATE.

All other basic inorganic chemical manufacturing|Peroxydisulfuric acid ([(HO)S(O)2]2O2), potassium salt (1:2): ACTIVE|... IN PHOTOGRAPHY UNDER THE NAME ANTHION TO REMOVE LAST TRACES OF THIOSULFATE FROM PLATES AND PAPER ...|POTASSIUM PERSULFATE HAS BEEN FOUND USEFUL IN WASTE GAS TREATMENT.

Fire Hazards -> Reactive - 1st degree|Cosmetics -> Oxidising

Food Additives -> FLOUR_TREATMENT_AGENT;