十二水合硫酸铬钾

Description

Chromium Potassium Sulfate dodecahydrate · CAS 7788-99-0 · CrH24KO20S2. UNII H54D055WX6. Density: 1.83 @25 °C.

Identification

CAS Registry Number	7788-99-0
PubChem CID	24596
Molecular formula	CrH24KO20S2
IUPAC name	potassium;chromium(3+);disulfate;dodecahydrate
UNII (FDA)	H54D055WX6

Computed Descriptors

Molecular Weight	499.4
Hydrogen Bond Donor Count	12
Hydrogen Bond Acceptor Count	20
Rotatable Bond Count	0
Exact Mass	498.934447
Monoisotopic Mass	498.934447
Topological Polar Surface Area	189
Heavy Atom Count	24
Formal Charge	0
Complexity	62.2

Physical & Chemical Properties

Density	1.83 @25 °C

Physical description & handling notes

• Violet-red to black crystals; Solutions turn green when heated; [CHEMINFO] Soluble in water; [Alfa Aesar]

Documented Uses

• Used in dyeing (mordant), tanning, printing calico, developing photographs, and producing glue, gum, and waterproof fabrics; [Merck Index]
• Leather Tanning and Processing [Category: Industry]
• Photographic Processing [Category: Other]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• Information on 4 consumer products that contain Potassium chromium alum dodecahydrate in the following categories is provided:

Synonyms

Chromium potassium sulfate dodecahydrate; Chromic potassium sulfate dodecahydrate; Chrome alum (dodecahydrate); Chromium(III) potassium sulfate dodecahydrate; Potassium chromium alum dodecahydrate; CCRIS 8929; Chromium(III) potassium sulfate (1:1:2), dodecahydrate; Sulfuric acid, chromium(3+)potassium salt(2:1:1), dodecahydrate; CHROMIUM KALI SULPHURICUM; Potassium chromium(III) sulfate dodecahydrate; DTXSID90228493; CHROMIUM KALI SULPHURICUM [HPUS]; CHROMIC POTASSIUM SULFATE DODECAHYDRATE [MI]; CHROMIUM(III) POTASSIUM DISULFATE DODECAHYDRATE; RefChem:576867; DTXCID10150984

Frequently Asked Questions

What are the CAS number and molecular formula of Chromium Potassium Sulfate dodecahydrate?

CAS 7788-99-0; molecular formula CrH24KO20S2; molecular weight — g/mol.

What other names is Chromium Potassium Sulfate dodecahydrate known by?

Chromium potassium sulfate dodecahydrate, Chromic potassium sulfate dodecahydrate, Chrome alum (dodecahydrate), Chromium(III) potassium sulfate dodecahydrate, Potassium chromium alum dodecahydrate, CCRIS 8929.

What are the key physical properties of Chromium Potassium Sulfate dodecahydrate?

Density: 1.83 @25 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.