Potassium persulfate
Outline
Half-life
Recrystallization
Solubility in water(g/100ml)
The main application areas
Toxicity
Storage precautions
Chemical properties
Uses
Production method
Category
Toxicity grading
Acute toxicity
Explosive hazardous characteristics
Flammability hazard characteristic
Storage characteristics
Extinguishing agent
Professional standards
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Potassium persulfate Properties
- Melting point:
- 1067 °C
- Boiling point:
- 1689 °C
- Density
- 2.47
- vapor density
- 9.3 (vs air)
- storage temp.
- Store at +5°C to +30°C.
- solubility
- H2O: 0.5 M at 20 °C, clear, colorless
- form
- Solid
- color
- White
- PH
- 3.2 (50g/l, H2O, 20℃)
- Water Solubility
- 5 g/100 mL (20 ºC)
- Merck
- 14,7656
- Stability:
- Stable. Strong oxidizer. Incompatible with strong reducing agents, organic materials, combustible materials.
- CAS DataBase Reference
- 7727-21-1(CAS DataBase Reference)
- EPA Substance Registry System
- Peroxydisulfuric acid ([(HO)S(O)2]2O2), dipotassium salt(7727-21-1)
SAFETY
- Risk and Safety Statements
- Hazard and Precautionary Statements (GHS)
| Hazard Codes | O,Xn | ||
|---|---|---|---|
| Risk Statements | 8-22-36/37/38-42/43 | ||
| Safety Statements | 22-24-26-37 | ||
| RIDADR | UN 1492 5.1/PG 3 |
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| WGK Germany | 1 |
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| RTECS | TT5900000 |
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| TSCA | Yes | ||
| HS Code | 2833 40 00 | ||
| HazardClass | 5.1 | ||
| PackingGroup | III | ||
| Hazardous Substances Data | 7727-21-1(Hazardous Substances Data) | ||
| Toxicity | LD50 orally in Rabbit: 802 mg/kg |
| Symbol(GHS): |
  
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Potassium persulfate price More Price(18)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 216224 | Potassium persulfate ACS reagent, ≥99.0% | 7727-21-1 | 5g | $32.2 | 2018-11-13 | Buy |
| Sigma-Aldrich | 216224 | Potassium persulfate ACS reagent, ≥99.0% | 7727-21-1 | 100g | $45 | 2018-11-13 | Buy |
| Alfa Aesar | 013145 | Potassium peroxydisulfate, ACS, 99.0% min | 7727-21-1 | 250g | $40.1 | 2018-11-16 | Buy |
| Alfa Aesar | 013145 | Potassium peroxydisulfate, ACS, 99.0% min | 7727-21-1 | 1kg | $105 | 2018-11-16 | Buy |
| Sigma-Aldrich | 379824 | Potassium persulfate 99.99% trace metals basis | 7727-21-1 | 25g | $182 | 2018-11-13 | Buy |
Potassium persulfate Chemical Properties,Uses,Production
Outline
Potassium persulfate (Formula is K2S2O8) is also known as potassium peroxydisulfate, molecular weight is 270.32, decomposition temperature is 50-60℃, it is white, odorless crystal, it is soluble in water, insoluble in alcohol, it has strong oxidizing, it is commonly used as bleaching agents, oxidizing agents, it can be used as the polymerization initiator, it almost does not absorb moisture, it has good stability at room temperature, it is easy to be stored, and it has the advantages of convenience and safety, etc. . Applications involves polymerization initiator, circuit board cleaning and etching, copper and aluminum surface activation, modified starch, pulp and textile bleaching and desizing low temperature, circulating water purification treatment systems, oxidative degradation of harmful gases, low formaldehyde adhesive stick together accelerated oxidation of ethanol and aromatic hydrocarbons, disinfectants, hair dye decolorization.The above information is edited by the chemicalbook of Wang Xiaodong.
Half-life
80℃-1.5 hours; 70℃-7.7 hours; 60℃-33 hours; 45℃-292 hours; 35℃-1600 hours.Recrystallization
Potassium persulfate dissolves in 30℃ water, cools, then the recrystallized product can be obtained, it is filtered and dried under reduced pressure in the presence of calcium chloride.Solubility in water(g/100ml)
Grams which dissolves in per 100 ml of water: 4.7g/20 ℃.The main application areas
Potassium persulfate is mainly used as initiator and strong oxidizing agents.Initiator:
Potassium persulfate is the initiator of latex or solution polymerization of acrylic monomers, vinyl acetate, vinyl chloride and other product, and it is also the initiator of styrene, acrylonitrile, butadiene and the like emulsion for copolymerisation.
Strong oxidizing agent:
1. It is used as desizing agent and bleach activator.
2. It is used for oxidative degradation of harmful substances in pool and closed circular loop in water.
3. It can be applied in the production of starch modifier and applied in the production of adhesive and coating agent.
4. It can be applied in the branched-chain oxidation, alcohol and aromatic hydroxy oxidation.
5. It is one of the basic constituent of hair dyes, it plays the role of decolorization.
Toxicity
The amount is not specified (FAO/WHO, 2001).Potassium persulfate powder has stimulating effect on nasal mucosa, packaging should be ventilated to prevent dust. Labour protection appliance should be dressed at work.
Storage precautions
Potassium persulfate is non-flammable, it is combustion-supporting which due to it can release of oxygen, storage environment must be dry and clean, well-ventilated. Pay attention to moisture and rain, it should not be transported in rain. Keep away from fire, heat and direct sunlight. It should be kept sealed packaging, labels should be intact and clear. It should be stored separately with flammable or combustible materials, organic compounds, as well as rust, small amount of metal, and other reducing substance, it should avoid mix to prevent causing decomposition of potassium persulfate and explosion.Chemical properties
It is colorless or white triclinic crystalline powder. It is soluble in water, the solubility is 1.75g/100ml water at 0℃, the solubility is 5.3g/100ml water at 20℃. It is insoluble in alcohol. Queous solution is acidic.Uses
It can be used as gluten agent of wheat flour.It is mainly used as a disinfectant and fabric bleach. It can be used as industrial oxidant in dyes and inorganic salts. It can be used as emulsion polymerization initiators in synthetic rubber industry. It can be used as polymerization accelerator in synthetic resin. In addition, it can also be used in the steel, photographic industry and medicine.
It can be used as analytical reagents, oxidants and plastic initiator, it can also be used in the film photofinishing.
The above information is edited by the chemicalbook of Wang Xiaodong.
Production method
Potassium sulfate methodAmmonium sulfate and sulfuric acid formulates to form liquid electrolyte, it is decontaminated by electrolysis, HSO4-can discharge and generate peroxydisulfate acidat in the anode, and then reacts with ammonium sulfate to generate ammonium persulfate, Then replacement reaction can happen when potassium is added . The finished product of potassium persulfate can be obtained after cooling, separation, crystallization, drying.
Anode reaction: 2HSO4-2e → H2S2O8
Cathodic reaction: 2H ++ 2e → H2 ↑
(NH4) 2SO4 + H2S2O8 → (NH4) 2S2O8 + H2SO4
(NH4) 2S2O8 + K2SO4 + H2SO4 → K2S2O8 + 2NH4HSO4
It can be derived by replacement reaction with ammonium persulfate potassium sulfate, then it goes through cooling, separation, crystallization, drying.
Category
oxidantToxicity grading
Mid toxicity.Acute toxicity
Oral-rat LD50: 802 mg/kg.Explosive hazardous characteristics
It can explode when mixes with reductant, sulfur, phosphorus; It can explode when be heated, impacted, and meets fire.Chemical Properties
colourless odourless crystals or white powderChemical Properties
Potassium persulfate is a colorless or white, odorless crystalline material.Flammability hazard characteristic
Thermal decomposition can get oxygen; toxic fumes of nitrogen oxides can generate after combustion.Uses
Bleaching fabrics, soaps; in photography under the name Anthion to remove last traces of thiosulfate from plates and paper; in analytical chemistry.Storage characteristics
Treasury should have ventilation and be low-temperature drying; loading and unloading should be light; it should be stored separately with organic matter, reducing agents, sulfur, phosphorus combustibles.Extinguishing agent
Mist of water, sand, foam.Professional standards
TWA 2 mg/m.General Description
A white crystalline solid. Specific gravity 2.477. Decomposes below 100°C.Air & Water Reactions
Water soluble. Slowly decomposed by water. The salt rapidly liberates oxygen when heated, and especially so when wet.Reactivity Profile
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].Hazard
Strong irritant and oxidizing agent. Fire risk in contact with organic materials.Health Hazard
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.Fire Hazard
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.Safety Profile
Moderately toxic by ingestion. An irritant and allergen. A powerful oxidtzer. Flammable when exposed to heat or by chemical reaction. Can react with reducing materials. It liberates oxygen above 100' when dry or @ about 50' when in solution. When heated to decomposition it emits highly toxic fumes of SOx,, S2O8, and K2O.Potential Exposure
Potassium persulfate is used as a bleaching and oxidizing agent; it is used in redox polymeri- zation catalysts; in the defiberizing of wet strength paper and in the desizing of textiles. Soluble in water.First aid
If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, includ- ing resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medi- cal attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. Medical observation is recommended for 24?48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.Shipping
UN1492 Potassium persulfate, Hazard Class: 5.1; Labels: 5.1-Oxidizer.Purification Methods
Crystallise the persulfate twice from distilled water (10mL/g) and dry it at 50o in a vacuum desiccator. Its solubility in H2O is 1.6% at 0o, 4.5% at 20o, and 7.2% at 30o. An aqueous solution decomposes on long standing with evolution of O2 and formation of KHSO4. It is a powerful oxidising agent. Store it at ~10o. [Fehér in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 390 1963.]Incompatibilities
A strong oxidizer. Incompatible with combustible, organic or other readily oxidizable materials; sulfur, metallic dusts, such as aluminum dust; chlorates and perchlorates. Attacks chemically active metals. Keep away from moisture.Waste Disposal
Use large volumes of reducing agents (bisulfites, e.g.). Neutralize with soda ash and drain into sewer with abundant water.Potassium persulfate Preparation Products And Raw materials
Raw materials
Preparation Products
sheeting sensitized glue
diagnosis latex microsphors combining anti fetoprotein
3,4-Dinitrobenzoic acid
8-ACETYL-6-HYDROXY-7-METHOXY-CHROMEN-2-ONE
acramoll W paste
modified filling agent SBR
polymer flocculant
self crosslinked type polyacrylate salt super absorbent
oil-proof, water-proof finishing agent
rubber latex 109BA
filtrate reducer PAC type
FRAXIDIN
Hydrogen peroxide
modified acrylic resin emulsion J
rubber latex BA
high-hydroscopic resin (3)
warp dressing agent MVAc
flocculant TS-614
an improved PVA hydrogel as artificial vitreous body
brubber latex 202BA
Cu(II) imprinted chelating resin
2,5-DINITROBENZOIC ACID
Polyacrylamide
Isopropylxanthic disulfide
Potassium persulfate Suppliers
Global( 222)Suppliers
| Supplier | Tel | Fax | Country | ProdList | Advantage | |
|---|---|---|---|---|---|---|
| Henan DaKen Chemical CO.,LTD. | +86-371-55531817 |
info@dakenchem.com | CHINA | 22058 | 58 | |
| Henan Tianfu Chemical Co.,Ltd. | 0371-55170693 |
0371-55170693 | info@tianfuchem.com | CHINA | 20795 | 55 |
| Mainchem Co., Ltd. | +86-0592-6210733 |
+86-0592-6210733 | sales@mainchem.com | CHINA | 32764 | 55 |
| Hefei TNJ Chemical Industry Co.,Ltd. | 86-0551-65418684 18949823763 |
86-0551-65418684 | info@tnjchem.com | China | 1583 | 55 |
| career henan chemical co | +86-371-86658258 |
sales@coreychem.com | CHINA | 20001 | 58 | |
| Alfa Aesar | 400-610-6006; 021-67582000 |
021-67582001/03/05 | saleschina@alfa-asia.com | China | 30308 | 84 |
| Shanghai Aladdin Bio-Chem Technology Co.,LTD | 021-20337333/400-620-6333 |
021-50323701 | sale@aladdin-e.com | China | 25127 | 65 |
| J & K SCIENTIFIC LTD. | 400-666-7788 +86-10-82848833 |
+86-10-82849933 | jkinfo@jkchemical.com;market6@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing) |
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) | sh@meryer.com | China | 40399 | 62 |
| Beijing dtftchem Technology Co., Ltd. | 13651141086; 86(10)60275028、60275820 |
86 (10) 60270825 | dtftchem@sina.com | China | 3433 | 62 |
View Lastest Price from Potassium persulfate manufacturers
| Image | Release date | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2018-12-22 |
Potassium persulfate 7727-21-1 |
US $2.00 / kg | 1kg | 99% | ask | career henan chemical co |
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