Home Categories Inorganic chemistry Potassium sulfate
A6718012

Potassium sulfate , SP , 7778-80-5

Synonym(s):
Dipotassium Salt;Potassium pyrosulfate;Potassium sulfate

CAS NO.:7778-80-5

Empirical Formula: K2O4S

Molecular Weight: 174.259

MDL number: MFCD00011388

EINECS: 231-915-5

Pack Size Price Stock Quantity
25G RMB71.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 1067°C
Boiling point: 1689°C
Density  2.66
Flash point: 1689°C
storage temp.  Inert atmosphere,Room Temperature
solubility  H2O: 0.5 M at 20 °C, clear, colorless
form  Very Fine Crystals or Powder
Specific Gravity 2.662
color  White
PH 5.5-7.5 (25℃, 0.5M in H2O)
Odor Odorless
PH Range ~7
Water Solubility  110 g/L (20 ºC)
λmax λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01
crystal system Nogata
Merck  14,7674
Space group Pnma
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.74560.57761.008909090

Dielectric constant 5.9(0.0℃)
Stability: Stable.
InChIKey OTYBMLCTZGSZBG-UHFFFAOYSA-L

Description and Uses

Potassium sulfate (K2SO4) is a kind of chemical compounds that is commonly used in agriculture. The dominant application of potassium sulfate is as a fertilizer, which is commonly applied to offer both potassium and sulfur, thus improving the quality and yield of crops growing in soils that lack an adequate supply of this essential elements. Besides, the crude potassium sulfate is sometimes employed in the production of glass. It also has applications in other industries, which is used as a flash reducer in artillery propellant charges and as an alternative blast media similar to soda in the process of soda blasting.

potassium sulfate powder

Technical grades are used in fertilizers for manufacture of potassium alum, potassium carbonate and glass; the reagent grade is used in the Kjeldahl determination of nitrogen.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P260-P262-P305+P351+P338
Safety Statements  22-24/25
WGK Germany  1
RTECS  TT5900000
TSCA  Yes
HS Code  31043000
Toxicity LD50 orally in Rabbit: 6600 mg/kg

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