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7778-80-5 molecular structure
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dipotassium sulfate

ChemBase ID: 103666
Molecular Formular: K2O4S
Molecular Mass: 174.2592
Monoisotopic Mass: 173.87914284
SMILES and InChIs

SMILES:
[K+].[K+].[O-]S(=O)(=O)[O-]
Canonical SMILES:
[O-]S(=O)(=O)[O-].[K+].[K+]
InChI:
InChI=1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
InChIKey:
OTYBMLCTZGSZBG-UHFFFAOYSA-L

Cite this record

CBID:103666 http://www.chembase.cn/molecule-103666.html

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NAMES AND DATABASE IDS

NAMES AND DATABASE IDS

Names Database IDs
IUPAC name
dipotassium sulfate
IUPAC Traditional name
dipotassium sulfate
dipotassium ion sulfate
Synonyms
Sulfate, Ion chromatography standard solution, Specpure®, SO
Potassium sulfate, ACS
Potassium sulfate, Puratronic®
Potassium sulphate
Potassium sulfate
Potassium sulfate solution
Sulfuric Acid Dipotassium Salt
POTASSIUM SULFATE, ACS
Potassium sulfate
?
硫酸钾, ACS
硫酸钾, Puratronic®
硫酸钾 溶液
硫酸钾
CAS Number
7778-80-5
EC Number
231-915-5
MDL Number
MFCD00011388
MFCD00145343
Merck Index
147674
PubChem SID
24898948
24858905
24881904
24899038
24853227
24898129
162091002
24847735
24852202
24853387
PubChem CID
24507
CHEBI ID
32036
CHEMBL
1201793
Chemspider ID
22915
KEGG ID
D01726
Unique Ingredient Identifier
1K573LC5TV
Wikipedia Title
Potassium_sulfate

CALCULATED PROPERTIES

CALCULATED PROPERTIES

JChem
Acid pKa -3.034349  H Acceptors
H Donor LogD (pH = 5.5) -5.569452 
LogD (pH = 7.4) -5.594027  Log P -0.841552 
Molar Refractivity 11.5274 cm3 Polarizability 6.037845 Å3
Polar Surface Area 80.26 Å2 Rotatable Bonds
Lipinski's Rule of Five true 

PROPERTIES

PROPERTIES

Physical Property Safety Information Product Information Bioassay(PubChem)
Solubility
111 g/L (20 °C)
120 g/L (25 °C)
240 g/L (100 °C) in water
expand Show data source
H2O: soluble0.5 M at 20 °C, clear, colorless expand Show data source
H2O: soluble1 M, clear, colorless expand Show data source
slightly soluble in glycerol
insoluble in acetone, alcohol, CS2
expand Show data source
Soluble in water. Insoluble in alcohol expand Show data source
Apperance
Crystalline expand Show data source
granular expand Show data source
Liquid expand Show data source
powder expand Show data source
Powder expand Show data source
powder (fine) expand Show data source
White solid expand Show data source
Melting Point
1069 °C expand Show data source
1069°C expand Show data source
1069°C expand Show data source
Boiling Point
1689 °C expand Show data source
1689°C expand Show data source
1689°C expand Show data source
Flash Point
Non-flammable expand Show data source
Density
1.056 g/mL at 20 °C expand Show data source
2.66 g/cm3 expand Show data source
2.662 expand Show data source
2.662 g/cm3 expand Show data source
Refractive Index
1.495 expand Show data source
Absorption Wavelength
λ: 260 nm Amax: ≤0.01 expand Show data source
λ: 260 nm Amax: 0.01 expand Show data source
λ: 280 nm Amax: ≤0.01 expand Show data source
λ: 280 nm Amax: 0.01 expand Show data source
pKa
~7 expand Show data source
Odor
odorless expand Show data source
pH
5.5-5.8 (25 °C, 5%) expand Show data source
5.5-7.5 (20 °C, 0.5 M in H2O) expand Show data source
5.5-7.5 (25 °C, 0.5 M in H2O) expand Show data source
5.5-7.5 (50 mg/mL in H2O, hot) expand Show data source
5.5-8.5 (20 °C, 5%) expand Show data source
Storage Condition
Room Temperature (15-30°C) expand Show data source
RTECS
TT5900000 expand Show data source
European Hazard Symbols
Irritant Irritant (Xi) expand Show data source
MSDS Link
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
German water hazard class
1 expand Show data source
Risk Statements
R:36/37/38 expand Show data source
R22 expand Show data source
Safety Statements
S:20-25-26-37/39 expand Show data source
S36 expand Show data source
TSCA Listed
expand Show data source
EU Index
Not listed expand Show data source
Main Hazard
Irritant expand Show data source
LD50
6600 mg/kg expand Show data source
Personal Protective Equipment
Eyeshields, Gloves expand Show data source
Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter expand Show data source
Purity
≥98.5% (perchloric acid titration) expand Show data source
≥99% expand Show data source
≥99% (calc. to the dried substance) expand Show data source
≥99.0% expand Show data source
≥99.0% (AT) expand Show data source
≥99.0% (T) expand Show data source
99% expand Show data source
99.0% min expand Show data source
99.99% (metals basis) expand Show data source
99.99% trace metals basis expand Show data source
99.997% (metals basis) expand Show data source
99-101% expand Show data source
Concentration
0.5 M expand Show data source
0.5 M in H2O expand Show data source
Grade
ACS expand Show data source
ACS reagent expand Show data source
ACS reagent, reag. ISO expand Show data source
JIS special grade expand Show data source
puriss. expand Show data source
puriss. p.a. expand Show data source
purum expand Show data source
purum p.a. expand Show data source
REAGENT expand Show data source
ReagentPlus® expand Show data source
SAJ first grade expand Show data source
Certificate of Analysis
Download expand Show data source
Download expand Show data source
Suitability
in accordance for appearance of solution expand Show data source
plant cell culture tested expand Show data source
Impurities
≤0.0005% heavy metals (as Pb) expand Show data source
≤0.0005% total nitrogen (N) expand Show data source
≤0.001% heavy metals (as Pb) expand Show data source
≤0.005% in water insoluble matters expand Show data source
≤0.005% Phosphorus (P) expand Show data source
≤0.01% free acid (as H2SO4) expand Show data source
≤0.01% insolubles expand Show data source
≤0.03% free alkali (as KOH) expand Show data source
≤0.1% Insoluble matter expand Show data source
≤5 ppm N compounds expand Show data source
acidity or alkalinity, in accordance expand Show data source
insoluble matter, passes filter test expand Show data source
residual solvents, complies expand Show data source
Cation Traces
Al: ≤0.0005% expand Show data source
Al: ≤1 mg/kg expand Show data source
Al: ≤5 mg/kg expand Show data source
As: ≤0.1 mg/kg expand Show data source
As: ≤1 mg/kg expand Show data source
As: ≤2 mg/kg expand Show data source
As: ≤5 mg/kg expand Show data source
Ba: ≤1 mg/kg expand Show data source
Ba: ≤5 mg/kg expand Show data source
Bi: ≤1 mg/kg expand Show data source
Bi: ≤5 mg/kg expand Show data source
Ca: ≤0.01% expand Show data source
Ca: ≤20 mg/kg expand Show data source
Ca: ≤200 mg/kg expand Show data source
Ca: ≤50 mg/kg expand Show data source
Cd: ≤1 mg/kg expand Show data source
Cd: ≤5 mg/kg expand Show data source
Cd: ≤50 mg/kg expand Show data source
Co: ≤1 mg/kg expand Show data source
Co: ≤5 mg/kg expand Show data source
Co: ≤50 mg/kg expand Show data source
Cr: ≤1 mg/kg expand Show data source
Cr: ≤5 mg/kg expand Show data source
Cu: ≤0.0005% expand Show data source
Cu: ≤1 mg/kg expand Show data source
Cu: ≤5 mg/kg expand Show data source
Cu: ≤50 mg/kg expand Show data source
Fe: ≤0.0005% expand Show data source
Fe: ≤1 mg/kg expand Show data source
Fe: ≤10 mg/kg expand Show data source
Fe: ≤5 mg/kg expand Show data source
Fe: ≤5 ppm expand Show data source
Fe: ≤50 mg/kg expand Show data source
heavy metals (as Pb): ≤5 ppm expand Show data source
Li: ≤1 mg/kg expand Show data source
Li: ≤5 mg/kg expand Show data source
Mg: ≤0.0005% expand Show data source
Mg: ≤0.005% expand Show data source
Mg: ≤1 mg/kg expand Show data source
Mg: ≤20 mg/kg expand Show data source
Mn: ≤1 mg/kg expand Show data source
Mn: ≤5 mg/kg expand Show data source
Mo: ≤1 mg/kg expand Show data source
Mo: ≤5 mg/kg expand Show data source
Na: ≤0.01% expand Show data source
Na: ≤0.02% expand Show data source
Na: ≤100 mg/kg expand Show data source
Na: ≤20 mg/kg expand Show data source
Na: ≤50 mg/kg expand Show data source
NH4+: ≤0.05% expand Show data source
Ni: ≤1 mg/kg expand Show data source
Ni: ≤5 mg/kg expand Show data source
Ni: ≤50 mg/kg expand Show data source
Pb: ≤0.001% expand Show data source
Pb: ≤1 mg/kg expand Show data source
Pb: ≤5 mg/kg expand Show data source
Pb: ≤50 mg/kg expand Show data source
Sr: ≤20 mg/kg expand Show data source
Sr: ≤50 mg/kg expand Show data source
Zn: ≤0.0005% expand Show data source
Zn: ≤1 mg/kg expand Show data source
Zn: ≤5 mg/kg expand Show data source
Zn: ≤50 mg/kg expand Show data source
Antion Traces
chloride (Cl-): ≤0.001% expand Show data source
chloride (Cl-): ≤100 mg/kg expand Show data source
chloride (Cl-): ≤20 mg/kg expand Show data source
chloride (Cl-): ≤200 mg/kg expand Show data source
chloride (Cl-): ≤5 mg/kg expand Show data source
phosphate (PO43-): ≤10 mg/kg expand Show data source
Loss on Drying
≤0.5% loss on drying, 105 °C, 4 h expand Show data source
≤0.5% loss on drying, 130 °C expand Show data source
Quality Level
PREMIUM expand Show data source
Quality
meets analytical specification of Ph. Eur. expand Show data source
λ
0.5 M in H2O expand Show data source
Product Line
BioUltra expand Show data source
Granulation
<0.3 mm expand Show data source
Linear Formula
K2SO4 expand Show data source

DETAILS

DETAILS

MP Biomedicals MP Biomedicals Wikipedia Wikipedia Sigma Aldrich Sigma Aldrich
MP Biomedicals - 02152564 external link
Anhydrous
ACS Reagent Grade
Powder
MP Biomedicals - 02152565 external link
Anhydrous
ACS Reagent Grade
Granular
Sigma Aldrich - 60528 external link
Other Notes
Component of Pseudomonas Selective Agar Base, and Pseudomonas Agar P Base.
Sigma Aldrich - 204129 external link
Packaging
10, 50 g in poly bottle
Sigma Aldrich - 223492 external link
Packaging
2.5 kg in poly bottle
500 g in poly bottle
Sigma Aldrich - P0772 external link
包装
1 kg in poly bottle
250 g in poly bottle
法律信息
ReagentPlus 注册商标 Sigma-Aldrich Co. LLC
Sigma Aldrich - 221325 external link
Packaging
2.5 kg in poly bottle
500 g in poly bottle

REFERENCES

REFERENCES

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PATENTS

PATENTS

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INTERNET

INTERNET

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