Potassium persulfate supplier

Name
Potassium persulfate
EINECS 231-781-8
CAS No. 7727-21-1
Density 2.47
Solubility 5 g/100 mL (20 °C) in water
Melting Point 100 °C
Formula K₂S₂O₈
Boiling Point 1689 °C
Molecular Weight 270.33
Flash Point Not combustible
Transport Information UN 1492 5.1/PG 3
Appearance colourless odourless crystals or white powder
Safety 22-24-26-37
Risk Codes 8-22-36/37/38-42/43
Molecular Structure
Hazard Symbols O,Xn
Synonyms Peroxydisulfuric acid dipotassium salt;Potassium peroxysulfate;Anthion;Potassium peroxydisulfate;Peroxydisulfuric acid, dipotassium salt;Dipotassium peroxodisulphate;Dipotassium peroxydisulfate;Dipotassium persulfate;
PSA 149.62000
LogP 0.01660

Potassium persulfate Chemical Properties

IUPAC Name: Dipotassium sulfonatooxy sulfate
Synonyms of Potassium persulphate (CAS NO.7727-21-1): Anthion ; Dipotassium peroxydisulfate ; Potassium peroxydisulfate ; Potassium persulfate
CAS NO: 7727-21-1
Molecular Formula: K₂S₂O₈
Molecular Weight: 270.31
Molecular Structure:
EINECS: 231-781-8
H bond acceptors: 8
H bond donors: 2
Freely Rotating Bonds: 3
Polar Surface Area: 143.96 Å²Vapor density: 9.3 (vs air)
Melting point: 100 °C
Boiling Point: 1689 °C
Water solubility: 5 g/100 mL (20°C)
Stability: Stable. Strong oxidizer. Incompatible with strong reducing agents, organic materials, combustible materials.
Appearance: colourless odourless crystals or white powder
Product Categories of Potassium persulphate (CAS NO.7727-21-1): Inorganics
SMILES: [K+].[K+].O=S(=O)([O-])OOS([O-])(=O)=O
InChI: InChI=1/2K.H2O8S2/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2
InChIKey: USHAGKDGDHPEEY-NUQVWONBAA
Std. InChI: InChI=1S/2K.H2O8S2/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2
Std. InChIKey: USHAGKDGDHPEEY-UHFFFAOYSA-L

Potassium persulfate Uses

Potassium persulphate (CAS NO.7727-21-1) is used as a food additive and it is also used in organic chemistry as an oxidizing agent for instance in the Elbs persulfate oxidation. Besides, this substance is also used as whitening agent with hydrogen peroxide in hair dye. Further more it is also an important role as initiator for emulsion polymerization.

Potassium persulfate Production

Production of Potassium persulphate (CAS NO.7727-21-1):
Potassium persulfate can be prepared by electrolysis of a mixture between potassium sulfate and hydrogen sulfate at a high current density.

2 KHSO₄ → K₂S₂O₈ + H₂
Potassium persulfate can still be prepared by adding potassium hydrogen sulfate (KHSO₄) to an electrolyzed solution of ammonium hydrogen sulfate (NH₄HSO₄).

Potassium persulfate Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
rat	LD50	oral	802mg/kg (802mg/kg)		"Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986Vol. 5, Pg. 468, 1986.

Potassium persulfate Safety Profile

Hazard Codes: Oxidizing O Harmful Xn
Risk Statements : 8-22-36/37/38-42/43
R8: Contact with combustible material may cause fire.
R22: Harmful if swallowed.
R36/37/38: Irritating to eyes, respiratory system and skin.
R42/43: May cause sensitization by inhalation and skin contact.
Safety Statements: 22-24-26-37
S22:Do not breathe dust.
S24:Avoid contact with skin.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37:Wear suitable gloves.
RIDADR: UN 1492 5.1/PG 3
WGK Germany: 1
RTECS: TT5900000
HazardClass: 5.1
PackingGroup: III

Potassium persulfate Specification

General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Substance is noncombustible.
Extinguishing Media: Use extinguishing media most appropriate for the surrounding fire.
Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage: Store in a cool, dry place. Store in a tightly closed container.

Product Name

Potassium persulfate