Sulfate chloride

The sulfate chlorides are double salts containing both sulfate (SO₄^2–) and chloride (Cl^–) anions. They are distinct from the chlorosulfates, which have a chlorine atom attached to the sulfur as the ClSO₃⁻ anion.

Sulfate chloride

Identifiers
3D model (JSmol)	Interactive image
PubChem CID	21918412
InChI InChI=1S/ClH.H2O4S/c;1-5(2,3)4/h1H;(H2,1,2,3,4)/p-3 Key: FZUJWWOKDIGOKH-UHFFFAOYSA-K
SMILES [O-]S(=O)(=O)[O-].[Cl-]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Many minerals in this family exist. Many are found associated with volcanoes and fumaroles. As minerals they are included in the Nickel-Strunz classification group 7.DG.

The book Hey's Chemical Index of Minerals groups these in subgroup 12.2.^{[dubious – discuss]}

List

name	formula	ratio	system	space group	unit cell	volume	density	optical	references
Arzrunite	Cu4Pb2(SO4)(OH)4Cl6 · 2H2O (?)	1:6	orthorhombic					Blue Biaxial	[1]
Connellite	Cu19(SO4)(OH)32Cl4 · 3H2O	1:4	hexagonal	P62c	a = 15.78 c = 9.10	1,962	3.36	blue Uniaxial (+) nω = 1.724 – 1.746 nε = 1.738 – 1.758 Birefringence: 0.026	[2]
Potassium Zinc Sulfate Chloride	K2Zn(SO4)Cl3 ?	1:3
Chlorothionite	K2Cu(SO4)Cl2	1:2	orthorhombic	Pnma	a = 7.73 b = 6.07 c = 16.29	764	2.67	pale blue Biaxial (+)	[3]
Sundiusite	Pb10(SO4)O8Cl2	1:2	monoclinic		a = 24.67 b = 3.781 c = 11.881 β = 100.07	1091.1		Biaxial (+) nα = 2.100 nγ = 2.170 Max birefringence: δ = 0.070	[4]
Sodium Potassium Iron Sulfate Chloride	(Na,K)2Fe(SO4)Cl2	1:2
Mammothite	Pb6Cu4AlSb5+O2(OH)16Cl4(SO4)2	1:2	monoclinic	C2	a = 18.959 b = 7.3399 c = 11.363 β = 112.428(9)° Z=2	1461.6	5.21	blue-green Biaxial (+) nα = 1.868 nβ = 1.892 nγ = 1.928 2V:measured: 80° Birefringence: 0.060	[5]
Zn Sulfate Chloride Hydroxide	Zn3(SO4)(Cl,OH)2	1:2							[6]
Tatarskite	Ca6Mg2(SO4)2(CO3)2(OH)4Cl4 · 7H2O	2:4	Orthorhombic				2.431	Biaxial (-) nα = 1.567 nβ = 1.654 nγ = 1.722 2V: 83°	[7]
Therasiaite	(NH4)3KNa2Fe2+Fe3+(SO4)3Cl5	3:5	monoclinic		a = 18.284, b = 12.073, c = 9.535 Å, β = 108.10°, and Z = 4	V = 2000.6 Å3		brown	[8]
Acmonidesite	(NH4,K,Pb)8NaFe2+4(SO4)5Cl8	5:8	orthorhombic		a = 9.841 Å, b = 19.448 Å, c = 17.847 Å Z=4	3,415.70 Å3			[9]
'Ammonium-Kainite'	NH4Mg(SO4)Cl•3H2O	1:1
Anhydrokainite	KMg(SO4)Cl	1:1							[10]
Belousovite	KZn(SO4)Cl	1:1	monoclinic	P21/c	a = 6.8904 b = 9.6115 c = 8.2144 β = 96.582 Z = 4	540.43			[11]
Gordaite	NaZn4(SO4)(OH)6Cl · 6H2O	1:1	trigonal	P3	a=8.35 c=13.08	802.67		Uniaxial (-) nω = 1.561 nε = 1.538 Max birefringence: δ = 0.023	[12]
Kainite	KMg(SO4)Cl · 3H2O	1:1	monoclinic		a = 19.72 b = 16.23 c = 9.53 β = 94.92°	3,039	2.15	Biaxial (-) nα = 1.494 nβ = 1.505 nγ = 1.516 2V: measured: 90° , calculated: 88° Max birefringence: δ = 0.022	[13]
Spangolite	Cu6Al(SO4)(OH)12Cl · 3H2O	1:1	trigonal	P31c	a = 8.24 c = 14.34 Z=2	843.2	3.14	blue-green Uniaxial (-) nω = 1.694 nε = 1.641 Max birefringence: δ = 0.053	[14]
Thérèsemagnanite	NaCo4(SO4)(OH)6Cl · 6H2O	1:1	trigonal	P3	a = 8.349 c = 13.031	786.6	2.52	Uniaxial (-) ω=1.792 nε=1.786 Max birefringence: δ = 0.006	[15][16]
Vendidaite	Al2(SO4)(OH)3Cl·6H2O	1:1	monoclinic	C2/c	a = 11.925 b = 16.134 c = 7.4573 β = 125.815°	1163.4	1.97	Biaxial (+) nα = 1.522 nβ = 1.524 nγ = 1.527 2V: calculated: 79° Max birefringence: δ = 0.005	[17]
Xitieshanite	Fe3+(SO4)Cl · 6H2O	1:1	monoclinic	P21/a	a = 14.102 b = 6.908 c = 10.673 β = 111.26° Z=4	968.97	1.99	Biaxial (+) nα = 1.536 nβ = 1.570 nγ = 1.628 2V: measured: 77° , calculated: 78° Max birefringence: δ = 0.092	[18]
Zn Sulfate-Hydroxide-Chloride-Hydrate	Zn9(SO4)2(OH)12Cl2 · 6H2O	2:2	trigonal	R3	a = 8.275 c = 32.000 Z=3	1,897.6			[19]
Tzeferisite	Ca[Zn8(SO4)2(OH)12Cl2](H2O)9	2:2	trigonal	R3c	a = 8.3797 Å, c = 68.123 Z=6	4142.7			[20]
UM1987-14-SO:ClHZn	Zn12(SO4)3Cl3(OH)15•5H2O	3:3
Aubertite	CuAl(SO4)2Cl · 14H2O	2:1	triclinic	P1	a=6.28 b=13.23 c=6.28 α=91.17°, β=94.67°, γ=82.45°	515.50	1.815	blue Biaxial (-) nα = 1.462 nβ = 1.482 nγ = 1.495 2V: measured: 71° , calculated: 76° Max birefringence: δ = 0.033	[21]
Magnesioaubertite	(Mg,Cu)Al(SO4)2Cl · 14H2O	2:1	triclinic	P1	a = 6.31 b = 13.20 c = 6.29 α = 91.74°, β = 94.55°, γ = 82.62°	517.8		Biaxial (-) nα = 1.466 nβ = 1.481 nγ = 1.488 2V: measured: 112° to 114°, calculated: 66° Max birefringence: δ = 0.022	[22]
Kamchatkite	KCu3(SO4)2OCl	2:1	orthorhombic	Pnma	a = 9.755 b = 7.015 c = 12.866	881.8	3.48	greenish-yellow Biaxial (+) nα = 1.695 nβ = 1.718 nγ = 1.759 2V: measured: 75° , calculated: 76° Max birefringence: δ = 0.064	[23]
Aiolosite	Na4Bi(SO4)3Cl	3:1	hexagonal	P63/m	a = 9.626 c = 6.880	552.1	3.589	Uniaxial (+) nω = 1.590 nε = 1.600 Max birefringence: δ = 0.010	[24]
Caracolite	Na3Pb2(SO4)3Cl	3:1	monoclinic	P63/m	a = 19.62 b = 7.14 c = 9.81 β = 120°	1190	5.1	Biaxial (-) nα = 1.743 nβ = 1.754 nγ = 1.764 Max Birefringence: δ = 0.021	[25]
D'Ansite	Na21Mg(SO4)10Cl3	10:3	isometric	I43d	a = 15.913 Z = 4	4,029.55	2.59	isotropic n=1.488	[26]
D'Ansite-(Fe)	Na21Fe2+(SO4)10Cl3	10:3	isometric	I43d	a = 15.882 Z=4	4,006.04	2.62	Isotropic n = 1.51	[27]
D'Ansite-(Mn)	Na21Mn2+(SO4)10Cl3	10:3	isometric	I43d	a = 15.929 Z=4	4,041.79	2.610	Isotropic n = 1.50	[28]
Adranosite	(NH4)4NaAl2(SO4)4Cl(OH)2	4:1	tetragonal	I41/acd	a = 18.118, c = 11.320	3,715.9			[29]
Adranosite-(Fe)	(NH4)4NaFe3+2(SO4)4Cl(OH)2	4:1	tetragonal	I41/acd	a = 18.261, c = 11.562 Z=8	3855.5		Uniaxial (-) nω = 1.580 nε = 1.570 Birefringence: δ = 0.010	[30]
Bluelizardite	Na7(UO2)(SO4)4Cl(H2O)2	4:1	monoclinic	C2/c	a = 21.1507 b = 5.3469 c = 34.6711 β = 104.913° Z=8	3788.91	3.116	yellow Biaxial (-) nα = 1.515(1) nβ = 1.540(1) nγ = 1.545(1) 2V: measured: 48°, calculated: 47.6° Max birefringence: δ = 0.030	[31]
Piypite	K4Cu4O2(SO4)4 · (Na,Cu)Cl	4:1	Tetragonal		a = 13.6 c = 4.95 Z=2	915.6	3.1	green Uniaxial (+) nω = 1.583 nε = 1.695 Max Birefringence:δ = 0.112	[32]
Atlasovite	K(BiO)Cu6Fe3+(SO4)5O3Cl	5:1	tetragonal	P4/ncc	a = 9.86, c = 20.58	2,001	4.2	Uniaxial (-) nω = 1.783 nε = 1.776 Birefringence: δ = 0.007	[33]
Three or more anions
Marinellite	(Na,K)42Ca6(Al6Si6O24)6(SO4)8Cl2 · 3H2O	2:8	Trigonal	P31c	a = 12.88 c = 31.761	4563	2.405	Uniaxial (+) nω = 1.495 nε = 1.497 Max birefringence: δ = 0.002	[34]
Philolithite	Pb12O6Mn7(SO4)(CO3)4Cl4(OH)12	1:4	Tetragonal		a = 12.627 c = 12.595 Z=2	2008.2		green Biaxial (+) nα = 1.920 nβ = 1.940 nγ = 1.950 Max birefringence: δ = 0.030	[35]
Symesite	Pb10(SO4)O7Cl4 · H2O	1:4	triclinic	P1	a = 8.821 b = 10.776 c = 13.134 α = 68.96°, β = 86.52°, γ = 75.65° Z=2	1128.4	7.3	pink Biaxial nα = 2.120 nγ = 2.160 Max birefringence: δ = 0.040	[36]
Bobmeyerite	Pb4(Al3Cu)(Si4O12)(S0.5Si0.5O4)(OH)7Cl(H2O)3	1:2	Orthorhombic	Pnnm	a = 13.969 b = 14.24 c = 5.893 Z=2	1173.6	4.381	Biaxial (-) nα = 1.756(4) nβ = 1.759(2) nγ = 1.759(2) Max birefringence: δ = 0.003	[37]
Microsommite	Na4K2Ca2(Al6Si6O24)(SO4)Cl2	1:2	Hexagonal		a = 22.08 c = 5.33	2,250		Uniaxial (+) nω = 1.521 nε = 1.529 Max birefringence: δ = 0.008	[38]
Mattheddleite	Pb5(SiO4)1.5(SO4)1.5(Cl,OH)	3:2	Hexagonal	P63/m	a = 10.0056, c = 7.496 Z=2	649.9	6.96	Uniaxial (-) nω = 2.017 nε = 1.999 Birefringence: δ = 0.018	[39]
Afghanite	(Na,K)22Ca10[Si24Al24O96](SO4)6Cl6	6:6	Trigonal		a = 12.796, c = 21.409 Z = 1	3,015.16	2.54	Uniaxial (+) nω = 1.523 nε = 1.529 δ = 0.006	[40]
Alloriite	(Na,Ca,K)26Ca4(Al6Si6O24)4(SO4)6Cl6	6:6	trigonal	P31c	a = 12.892 c = 21.340 Z=4	3,071.61	2.35	Uniaxial (+) nω = 1.497(2) nε = 1.499(2) Max birefringence: δ = 0.002	[41]
Eztlite	Pb2+2Fe3+3(Te4+ O3)3(SO4)O2Cl	1:1	monoclinic	Cm	a = 11.466 b = 19.775 c = 20.52 β = 20.52° Z=2	2322.6	4.5	red Biaxial nα = 2.140 nγ = 2.150 Max birefringence: δ = 0.010	[42]
Vlodavetsite	AlCa2(SO4)2F2Cl · 4H2O	1:1	Tetragonal	I4/m	a = 6.870, c = 13.342 Z=2	629.70		Uniaxial (+) nω = 1.509 nε = 1.526 Birefringence: δ = 0.017	[43]
Liottite	(Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4	5:4	Hexagonal		a = 12.84 c = 16.09	2,297		Uniaxial (-) nω = 1.530 nε = 1.528 Max birefringence: δ = 0.002	[44]
Chlorellestadite	Ca10(SiO4)3(SO4)3Cl2	3:2	Hexagonal	P63/m	a = 9.6002 c = 6.8692 Z=2	548.27	3.091	Uniaxial (-) nω = 1.664 nε = 1.659 Max birefringence δ = 0.005	[45]
Heidornite	Na2Ca3B5O8(SO4)2Cl(OH)2	2:1	monoclinic		a = 10.19 b = 7.76 c = 18.81 β = 93.33° Z=4	1,484.88	2.753	Biaxial (+) nα = 1.579 nβ = 1.588 nγ = 1.604 2V: measured: 63° to 77°, calculated: 76° Max birefringence: δ = 0.025	[46]
Mineevite-(Y)	Na25Ba(Y,Gd,Dy)2(CO3)11(HCO3)4(SO4)2F2Cl	2:1	hexagonal	P63/m	a = 8.811 c = 37.03	2,489.6	2.85	Pale green Uniaxial (-) nω = 1.536 nε = 1.510 Max birefringence: δ = 0.026	[47]
Sulphohalite	Na6(SO4)2FCl	2:1	Isometric	Fm3m	a = 10.065, Z = 4	1,019.6		isotropic n=1.455	[48][49]
Tounkite	(Na,Ca,K)8(Al6Si6O24)(SO4)2Cl · H2O	2:1	hexagonal		a = 12.84 c = 32.23	4,602		Uniaxial (+) nω = 1.528 nε = 1.543 Max birefringence: δ = 0.015	[50]
Alloriite	Na19K6Ca5[Al22Si26O96](SO4)5Cl(CO3)x(H2O)	5:1	trigonal	P31c	a = 12.892 c = 21.340				[51]
Galeite	Na15(SO4)5F4Cl	5:1	trigonal		a = 12.17 c = 13.94	1788		Uniaxial (+) nω = 1.447 nε = 1.449 Max birefringence: δ = 0.002
Nabokoite	KCu7(SO4)5(Te4+O3)OCl	5:1	Tetragonal		a = 9.84 Å, c = 20.52	1,986.86		nω = 1.778 nε = 1.773 uniaxial (-)	[52]
Schairerite	Na21(SO4)7ClF6	7:1	Trigonal		a = 12.17 c = 19.29	2,474	2.612	Uniaxial (+) nω = 1.440 nε = 1.445 Max birefringence: δ = 0.005	[53]
Hanksite	Na22K(SO4)9(CO3)2Cl	9:1	Hexagonal	P 63/m	a = 10.4896 c = 21.2415	2024.1			[54]
Sacrofanite	(Na61K19Ca32)(Si84Al84O336)(SO4)26Cl2F6•2H2O	26:2	hexagonal	P62c	a = 12.86 c = 72.24 Z=14	10,346	2.423	Uniaxial (-) nω = 1.505 nε = 1.486 Max birefringence:δ = 0.019	[55]

Artificial

name	formula	ratio SO4:Cl	system	space group	unit cell	volume	density	optical	references
'Ammonium-zinc-Kainite'	NH4Zn(SO4)Cl•3H2O	1:1
nonasodium tetrakis(sulfate) chloride diperhydrate	Na9[SO4]4Cl·2H2O2	4:1	tetragonal	P 4/n	MW=694.63 a=29.6829 b=29.6829 c=8.4018 Z=16	7402.6	2.493	colourless	[56]
'zinc-Kainite'	KZn(SO4)Cl•3H2O	1:1						n=1.24	[57]
	Li2RbSO4Cl	1:1	orthorhombic	P212121	a=4.8465 b=8.323 c=14.004 Z=4	564.0	2.714		[58]
indium sulfate chloride	In2(SO4)3•InCl3•(17±1)H2O	3:3							[59]
	Na3Ca2(SO4)3Cl	3:1	hexagonal	P63/m					[60]
	Na3Ca2(SO4)3Cl	3:1	orthorhombic >897K						[61]
	Na3Cd2(SO4)3Cl	3:1	hexagonal	P63/m					[60]
	Na3Cd2(SO4)3Cl	3:1	monoclinic >494K						[61]
	K3Ca2(SO4)3Cl	3:1							[62]
	K3Pb2(SO4)3Cl	3:1							[63]
	K4Sb(SO4)3Cl	3:1	noncentrosymmetric					non-linear optic high birefringence.	[64]
Calcium chlorosulfatosilicate	Ca10(SiO4)3(SO4)3Cl2	3:2	hexagonal		a=9.688 c=6.849			monoaxial,(-) , No = 1.665, Ne' = 1.659	[65]
	[Fe2Al4(OH)11](SO4)3Cl	3:1
Lithium gordaite	LiZn4(OH)6(SO4)Cl·6H2O	1:1			?c=17.84				[66]
	K3Sn2(SO4)3Cl	3:1						stable to 440 °C	[67]
	Rb3Sn2(SO4)2Cl3	2:3	monoclinic	C2/m	a=21.153 b=5.1751 c= 6.9327 β =95.844 Z=2	754.97	3.485	stable to 350 °C	[67]
	(NH4)SbCl2(SO4)	1:2	orthorhombic	P212121	a=6.3616 b=7.3110 c=15.827 Z=2	736.13	2.768	colourless SHG 1.7×KDP	[68]
	(NH4)2SbCl(SO4)2	2:1	orthorhombic	Pnma	a=8.6044 b=16.5821 c=7.1007 Z=2	1013.1	2.527	colourless	[68]
	RbSbSO4Cl2	1:2	orthorhombic	P212121	a=6.3469 b=7.4001 c=15.7798 Z=2	741.14	3.353	SHG 2.7×KDP	[69]
	Cs3Sn2(SO4)2Cl3	2:3	monoclinic	C2/m	a=22.222 b=5.1992 c= 7.2661 β =97.030 Z=2	833.17	3.725	stable to 190 °C	[67]
gadolinium chloride sulfate	GdClSO4	1:1	monoclinic	P21/c	a = 9.437 6.5759 6.8005 β = 104.87 Z=4				[70]
	[Hf18O10(OH)26(SO4)12.7(H2O)20]Cl0.6·nH2O		hexagonal	P63/m	a=33.924 c=17.3577 Z=6	17096	3.474		[71]
	KBiCl2SO4	1:2	orthorhombic	P212121	a= 7.2890 b=6.3673 c=15.3306 Z=4	711.51	3.875	band gap 3.95 eV	[72]
	RbBiCl2SO4	1:2	orthorhombic	P212121	a= 6.3352 b=7.4450 c=15.5302 Z=4	732.49	4.184	colourless NLO SHG	[73]
	NH4BiCl2SO4	1:2	orthorhombic	P212121	a=7.3845 b=6.3593 c=15.5636 Z=4	730.87	3.581	colourless NLO SHG	[73]
bismuth guanidinium dichloride sulfate	[C(NH2)3]BiCl2SO4	1:2	triclinic	P1	a=6.4179 b=12.8984 c=12.9703 α=61.965° β=88.400° γ=76.935° Z=2	919.33	3.150	birefringence 0.143@546 nm	[74]
Tripotassium dibismuth pentachloride dioxide disulfate	K3Bi2Cl5O2(SO4)2	2:5	triclinic	P1	a=6.513 b=7.2500 c=10.7916 al=82.500 be=83.742 ga=82.100	485.89		band gap 3.62 eV	[75]
	K4[(NpO2)(SO4)2]Cl	2:1	monoclinic	P2/n	a=10.0873 b=4.5354 c=14.3518 β=103.383 Z=2	638.76	3.395	light green	[76]
	Rb4[(NpO2)(SO4)2]Cl	2:1	monoclinic	P2/n	a=10.5375 b=4.6151 c=16.068 β=103.184 Z=2	599.33	3.982	light green	[76]
complexes
	[Pt2(SO4)4Cl(H2O)]3-	4:1							[77]
	Hf(SO4)2Cl−	2:1							[78]

Some "chloride sulfates" are sold as solutions in water and used for water treatment. these include ferric chloride sulfate and polyaluminium sulfate chloride. The solutions may also be called "chlorosulfates" even though they do not contain a chlorosulfate group.