硫酸クロム

WordNet

convert into a sulfate
a salt or ester of sulphuric acid (同)sulphate
a hard brittle multivalent metallic element; resistant to corrosion and tarnishing (同)Cr, atomic number 24

PrepTutorEJDIC

クロム,クロミウム(金属元素;化学記号は『Cr』)

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/06/02 04:51:24」(JST)

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Chromium(III) sulfate usually refers to the inorganic compound with the formula Cr₂(SO₄)₃ • 12(H₂O). This consists of the hydrated sulfate salt of the metal aquo complex with the formula [Cr(H₂O)₆]³⁺, which is responsible for the purple color of this salt. It is widely used in the tanning of leather, with associated environmental damage.^[1]

Properties

Heating chromium(III) sulfate leads to partial dehydration to give a hydrated green salt (CAS#15244-38-9) and eventually the anhydrous derivative (CAS#10101-53-8).

Production

Basic chromium sulfate is produced from chromate salts by reduction with sulfur dioxide, although other methods exist.^[2] The hydrous form may be formed by the reaction of chromium(III) oxide and sulfuric acid.

Cr₂O₃ + 3 H₂SO₄ → Cr₂(SO₄)₃ + 3 H₂O

References

^ http://youtu. be /a0UCeTjhSJI
^ Gerd Anger, Jost Halstenberg, Klaus Hochgeschwender, Christoph Scherhag, Ulrich Korallus, Herbert Knopf, Peter Schmidt, Manfred Ohlinger (2005), "Chromium Compounds", Ullmann's Encyclopedia of Industrial Chemistry, Weinheim: Wiley-VCH, doi:10.1002/14356007.a07_067

v t e Salts and the ester of the Sulfate ion
H₂SO₄																	He
Li₂SO₄	BeSO₄											B	(RO)₂SO₃	(NH₄)₂SO₄ N₂H₆SO₄ (NH₃OH)₂SO₄	O	F	Ne
Na₂SO₄ NaHSO₄	MgSO₄											Al₂(SO₄)₃	Si	P	SO₄²⁻	Cl	Ar
K₂SO₄ KHSO₄	CaSO₄	Sc₂(SO₄)₃	Ti(SO₄)₂	V₂(SO₄)₃ VOSO₄	CrSO₄ Cr₂(SO₄)₃	MnSO₄	FeSO₄ Fe₂(SO₄)₃	CoSO₄, Co₂(SO₄)₃	NiSO₄	CuSO₄	ZnSO₄	Ga₂(SO₄)₃	Ge	As	Se	Br	Kr
Rb₂SO₄	SrSO₄	Y	Zr(SO₄)₂	Nb	Mo	Tc	Ru	Rh	PdSO₄	Ag₂SO₄	CdSO₄	In₂(SO₄)₃	SnSO₄	Sb₂(SO₄)₃	Te	I	Xe
Cs₂SO₄	BaSO₄		Hf	Ta	W	Re	Os	Ir	Pt	Au	Hg₂SO₄, HgSO₄	Tl₂SO₄	PbSO₄	Bi₂(SO₄)₃	Po	At	Rn
Fr	Ra		Rf	Db	Sg	Bh	Hs	Mt	Ds	Rg	Cn	Uut	Fl	Uup	Lv	Uus	Uuo
		↓
		La	Ce₂(SO₄)₃ Ce(SO₄)₂	Pr₂(SO₄)₃	Nd	Pm	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb₂(SO₄)₃	Lu
		Ac	Th	Pa	U(SO₄)₂ UO₂SO₄	Np	Pu	Am	Cm	Bk	Cf	Es	Fm	Md	No	Lr

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English Journal

Chromium-induced diffuse dermatitis with lymph node involvement resulting from Langerhans cell histiocytosis after metal-on-metal hip resurfacing.

Bizzotto N1, Sandri A1, Trivellin G1, Magnan B1, Micheloni GM1, Zamò A2, Bernardi P3, Sbarbati A3, Regis D1.
The British journal of dermatology.Br J Dermatol.2015 Jun;172(6):1633-6. doi: 10.1111/bjd.13517. Epub 2015 Mar 15.
Total hip arthroplasty (THA) is a highly effective surgical treatment for severe joint involvement. However, due to the release of metal ions in the blood, the patients who undergo hip replacement with metal-on-metal (MOM) bearings may develop signs of allergic skin disease. We report a case of a 60
PMID 25385406

Integration of ion-exchange and nanofiltration processes for recovering Cr(III) salts from synthetic tannery wastewater.

Gando-Ferreira LM1, Marques JC, Quina MJ.
Environmental technology.Environ Technol.2015;36(18):2340-8. doi: 10.1080/09593330.2015.1027284. Epub 2015 Apr 24.
This study aims to investigate the possibility of integrating both ion-exchange (IX) and nanofiltration (NF) processes for the recovery of Cr(III) salts from a synthetic solution prepared with concentrations of Cr(III), [Formula: see text] and Cl(-) in the range of industrial effluents of tanneries.
PMID 25750988

Can green solvents be alternatives for thermal stabilization of collagen?

Mehta A1, Rao JR1, Fathima NN2.
International journal of biological macromolecules.Int J Biol Macromol.2014 Aug;69:361-8. doi: 10.1016/j.ijbiomac.2014.05.021. Epub 2014 Jun 2.
"Go Green" campaign is gaining light for various industrial applications where water consumption needs to be reduced. To resolve this, industries have adopted usage of green, organic solvents, as an alternative to water. For leather making, tanning industry consumes gallons of water. Therefore, for
PMID 24942230

Japanese Journal

δフェライト相によるオーステナイト系ステンレス鋼溶接金属の鋭敏化防止要件のモデル化

溶接学会論文集 35(4), 141-148, 2017
NAID 130006243226

エトリンガイトを用いたテトラフルオロホウ酸・六価クロム含有排水の凝集沈殿処理

表面技術 67(2), 111-117, 2016
NAID 130005306112

The stress-strain properties of the cement stabilized/solidified chromium contaminated soils eroded by sodium chloride

Japanese Geotechnical Society Special Publication 2(55), 1908-1911, 2016
NAID 130005124184

「sulfate」

Chromium(III) sulfate
Names
	IUPAC name Chromium(III) sulfate
	Other names Basic chromium sulfate, chromic sulfate
Identifiers
CAS Registry Number	10101-53-8 ; 13520-66-6 (dodecahydrate)
ChemSpider	21241287
	InChI InChI=1S/2Cr.3H2O4S.12H2O/c;;31-5(2,3)4;;;;;;;;;;;;/h;;3(H2,1,2,3,4);121H2/q2+3;;;;;;;;;;;;;;;/p-6 ; Key: ANNXSSGQVXBUEI-UHFFFAOYSA-H ; InChI=1/2Cr.3H2O4S.12H2O/c;;31-5(2,3)4;;;;;;;;;;;;/h;;3(H2,1,2,3,4);121H2/q2+3;;;;;;;;;;;;;;;/p-6; Key: ANNXSSGQVXBUEI-CYFPFDDLAL ;
Jmol-3D images	Image
PubChem	24930
	SMILES [Cr+3].[Cr+3].[O-]S(=O)(=O)[O-].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.O.O.O.O.O.O.O.O.O.O.O.O ;
UNII	Y0C99N5TMZ
Properties
Chemical formula	Cr2(SO4)3 • 12H2O
Molar mass	392.16 g/mol; 608.363 g/mol (dodecahydrate); 716.45 g/mol (octadecahydrate)
Appearance	reddish-brown crystals (anhydrous), purple crystals (hydrated)
Density	3.10 g/cm3 (anhydrous); 1.86 g/cm3 (pentadecahydrate); 1.709 g/cm3 (octadecahydrate)
Melting point	90 °C
Boiling point	decomposes to chromic acid
Solubility in water	insoluble (anhydrous); soluble (hydrated)
Solubility	soluble in alcohol; practically insoluble in acid
Hazards
SDS	MSDS
EU Index	Not listed
NFPA 704	0 1 0
Flash point	Non-flammable
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references