≥99.9% metals basis for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships Normal Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Chromium(III) potassium sulfate dodecahydrate (Potassium chromium(III) sulfate dodecahydrate, Chrome alum) is a violet colored solid. It has been synthesized by reacting sulfur dioxide with potassium dichromate (diisolved in sulfuric acid) at -38°C. It is widely used chemical in dyeing and textile industry.
Chromium(III) potassium sulfate dodecahydrate (KCr(SO4)2.12H2O) may be used for coating the slides for microscopic studies on Periplaneta americana.It may be used in the preparation of quasi-monodisperse spherical core-shell particles of Cr/α-Cr2O3.
| Canonical Smiles | O.O.O.O.O.O.O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[K+].[Cr+3] |
|---|---|
| IUPAC Name | potassium;chromium(3+);disulfate;dodecahydrate |
| InChIKey | ZFVHBEKVAITXHW-UHFFFAOYSA-J |
| INCHI | 1S/Cr.K.2H2O4S.12H2O/c;;2*1-5(2,3)4;;;;;;;;;;;;/h;;2*(H2,1,2,3,4);12*1H2/q+3;+1;;;;;;;;;;;;;;/p-4 |
| Isomeric SMILES | O.O.O.O.O.O.O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[K+].[Cr+3] |
| WGK Germany | 2 |
| Molecular Weight | 499.4 |
| Reaxy-Rn | 16484167 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=16484167&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
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Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Inorganic compounds |
|---|---|
| Superclass | Mixed metal/non-metal compounds |
| Class | Transition metal oxoanionic compounds |
| Subclass | Transition metal sulfates |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Transition metal sulfates |
| Alternative Parents | Inorganic salts Inorganic oxides |
| Molecular Framework | Not available |
| Substituents | Transition metal sulfate - Inorganic oxide - Inorganic salt |
| Description | This compound belongs to the class of inorganic compounds known as transition metal sulfates. These are inorganic compounds in which the largest oxoanion is sulfate, and in which the heaviest atom not in an oxoanion is a transition metal. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 J2514402 | Certificate of Analysis | Oct 18, 2025 | C1375389 |
| J2514400 | Certificate of Analysis | Oct 17, 2025 | C1375389 |
| J2514401 | Certificate of Analysis | Oct 17, 2025 | C1375389 |
| I2518743 | Certificate of Analysis | Sep 25, 2025 | C1375389 |
| I2518744 | Certificate of Analysis | Sep 25, 2025 | C1375389 |
| I2518753 | Certificate of Analysis | Sep 25, 2025 | C1375389 |
| I2518531 | Certificate of Analysis | Sep 24, 2025 | C1375389 |
| I2518740 | Certificate of Analysis | Sep 24, 2025 | C1375389 |
| I2518754 | Certificate of Analysis | Sep 24, 2025 | C1375389 |
| Solubility | Soluble in water 24 g/100 mL (15°C). |
|---|---|
| Sensitivity | Heat sensitive |
| Melt Point(°C) | 89°C |
| Molecular Weight | 499.400 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 12 |
| Hydrogen Bond Acceptor Count | 20 |
| Rotatable Bond Count | 0 |
| Exact Mass | 498.934 Da |
| Monoisotopic Mass | 498.934 Da |
| Topological Polar Surface Area | 189.000 Ų |
| Heavy Atom Count | 24 |
| Formal Charge | 0 |
| Complexity | 62.200 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 16 |
