| Identification | More | [Name]
Potassium pyrosulfate | [CAS]
7790-62-7 | [Synonyms]
DIPOTASSIUM DISULFATE
DI-POTASSIUM DISULPHATE
POTASSIUM DISULFATE
POTASSIUM HYDROGEN SULFATE
POTASSIUM PYROSULFATE
POTASSIUM PYROSULPHATE
Disulfuricacid,dipotassiumsalt
POTASSIUM DISULFATE R. G.
PotassiumPyrosulfateK2S2O7
PotassiumPyrosulphateGr
Potassiumhydrogensulfate,ACS
Potassiumpyrosulphate,97%
Potassium pyrosulfate, for analysis, 98%
POTASSIUM HYDROGEN SULFATE FUSED, REAGENT (ACS)
POTASSIUMHYDROGENSULFATE,FUSED,POWDER,REAGENT,ACS
Potassium pyrosulfate: (Disulfuric acid, dipotassium salt)
Potassium Hydrogen Sulfate, Fused, Powder, Reagent
Potassium pyrosulfate, 98%, for analysis | [EINECS(EC#)]
232-216-8 | [Molecular Formula]
K2O7S2 | [MDL Number]
MFCD00011385 | [Molecular Weight]
254.32 | [MOL File]
7790-62-7.mol |
| Chemical Properties | Back Directory | [Appearance]
white crystalline powder | [Melting point ]
325 °C | [bulk density]
830kg/m3 | [density ]
2.28 g/mL at 25 °C(lit.)
| [storage temp. ]
no restrictions. | [solubility ]
H2O: 0.1 M at 20 °C, clear, colorless
| [form ]
Solid | [color ]
White | [Specific Gravity]
2.28 | [Odor]
Odorless | [PH]
0.8 (50g/l, H2O, 20℃) | [PH Range]
1 - 2 at 25.5 g/l at 25 °C | [Stability:]
Stable. Incompatible with strong acids, strong bases. | [Water Solubility ]
MAY DECOMPOSE | [Sensitive ]
Hygroscopic | [Merck ]
14,7664 | [InChI]
1S/2K.H2O7S2/c;;1-8(2,3)7-9(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2 | [InChIKey]
KAQHZJVQFBJKCK-UHFFFAOYSA-L | [SMILES]
[K+].[K+].[O-]S(=O)(=O)OS([O-])(=O)=O | [Uses]
Acid flux in analysis, laboratory reagent.
| [CAS DataBase Reference]
7790-62-7(CAS DataBase Reference) | [EPA Substance Registry System]
7790-62-7(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
C | [Risk Statements ]
R34:Causes burns. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
UN 3260 8/PG 2
| [WGK Germany ]
3
| [TSCA ]
TSCA listed | [REACH Registrations]
Active | [HazardClass ]
8 | [PackingGroup ]
II | [HS Code ]
28332990 | [Storage Class]
6.1B - Non-combustible acute toxic Cat. 1 and 2
very toxic hazardous materials | [Hazard Classifications]
Acute Tox. 3 Inhalation
Eye Dam. 1
Skin Corr. 1A |
| Hazard Information | Back Directory | [Chemical Properties]
Colorless needles or white, crystalline
powder or fused pieces.
Soluble in water ( converted to potassium bisulfate).
| [Preparation]
Potassium pyrosulphate is obtained by heating potassium hydrogen sulphate to its melting point. | [General Description]
Potassium disulfite (Potassium pyrosulfate) has been synthesized from potassium hydrogen sulfate, via melting. | [Flammability and Explosibility]
Nonflammable | [References]
[1] P.J. MINEELY S. A T. Molten potassium pyrosulfate: The reactions of seven metal oxalates[J]. Thermochimica Acta, 1987, 114 2: Pages 281-286. DOI:10.1016/0040-6031(87)80049-7.
[2] CHUNBIN GUO. A novel perspective process for alumina extraction from coal fly ash via potassium pyrosulfate calcination activation method[J]. Journal of Cleaner Production, 2020, 271 1: 122703. DOI:10.1016/j.jclepro.2020.122703. |
|
| Company Name: |
J & K SCIENTIFIC LTD.
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| Telephone: |
18210857532 18210857532 |
| Website: |
https://www.jkchemical.com |
| Company Name: |
Energy Chemical
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400-0056266 |
| Website: |
www.energy-chemical.com |
| Company Name: |
Maya High Purity Chemicals
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+86 (573) 82222445 (0)18006601000 452520369 |
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www.chemicalbook.com/ShowSupplierProductsList15221/0_EN.htm |
| Company Name: |
Spectrum Chemical Manufacturing Corp.
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021-021-021-67601398-809-809-809 15221380277 |
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www.spectrumchemical.com/oa_html/index.jsp?minisite=10020&respid=22372&language=us |
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