Home Categories Inorganic chemistry Potassium persulfate
A6712812

Potassium persulfate , ACS,≥99.0%(RT) , 7727-21-1

Synonym(s):
KPS;Potassium peroxodisulfate;Potassium persulfate

CAS NO.:7727-21-1

Empirical Formula: K2O8S2

Molecular Weight: 270.32

MDL number: MFCD03457781

EINECS: 231-781-8

Update time: 2022-07-08

PRODUCT Properties

Melting point: 1067 °C
Boiling point: 1689 °C
Density  2.47
vapor density  9.3 (vs air)
vapor pressure  0Pa at 25℃
storage temp.  Store at +5°C to +30°C.
solubility  H2O: 0.5 M at 20 °C, clear, colorless
form  Solid
Specific Gravity 2.477
color  White
PH 3.2 (50g/l, H2O, 20℃)
Odor Odorless
PH Range 2.5 - 4.5
Water Solubility  5 g/100 mL (20 ºC)
Merck  14,7656
Exposure limits ACGIH: TWA 0.1 mg/m3
Stability: Stable. Strong oxidizer. Incompatible with strong reducing agents, organic materials, combustible materials.
InChIKey USHAGKDGDHPEEY-UHFFFAOYSA-L
LogP -1 at 20℃

Description and Uses

Potassium persulfate, is composed of white crystals that are soluble in water, and it decomposes below 212°F (100°C). Potassium persulfate is a dangerous fire risk in contact with organic materials. It is a strong oxidizing agent and an irritant, with a four-digit UN identification number of 1492. The primary uses are in bleaching, as an oxidizing agent, as an antiseptic, as a polymerization promoter, and in the manufacture of pharmaceuticals.

Potassium persulfate?is a powerful oxidant, commonly used to initiate polymerizations. Potassium Persulphate used for bleaching and textile desizing, as an oxidizing agent and antiseptic, in purification of ammonium sulfate, and in the manufacture of soap and pharmaceuticals. It is also used as al laboratory oxidant and photography chemical. It is a food additive.

Safety

Symbol(GHS) 
GHS03,GHS07,GHS08
Signal word  Danger
Hazard statements  H272-H302-H315-H317-H319-H334-H335
Precautionary statements  P210-P280-P301+P312-P302+P352-P304+P340+P312-P305+P351+P338
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
WGK Germany  1
RTECS  TT5900000
TSCA  Yes
HS Code  2833 40 00
HazardClass  5.1
PackingGroup  III
Toxicity LD50 orally in Rabbit: 802 mg/kg

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