Cadmium sulfate

{{Chembox

| Verifiedfields = changed

| Watchedfields = changed

| verifiedrevid = 476999882

| Name = Cadmium sulfate

| ImageFile = CdSO4(H2O).jpg

| ImageName = Cadmium sulfate

| IUPACName = Cadmium(II) sulfate

| OtherNames = Sulfuric acid, cadmium salt (1:1),

|Section1={{Chembox Identifiers

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| ChemSpiderID = 23335

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 947UNF3Z6O

| InChI = 1/Cd.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2

| ChEBI_Ref = {{ebicite|correct|EBI}}

| ChEBI = 50292

| SMILES = [Cd+2].[O-]S([O-])(=O)=O

| InChIKey = QCUOBSQYDGUHHT-NUQVWONBAG

| StdInChI_Ref = {{stdinchicite|correct|chemspider}}

| StdInChI = 1S/Cd.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2

| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

| StdInChIKey = QCUOBSQYDGUHHT-UHFFFAOYSA-L

| CASNo = 10124-36-4

| CASNo_Ref = {{cascite|correct|CAS}}

| CASNo2_Ref = {{cascite|changed|??}}

| CASNo2 = 7790-84-3

| CASNo2_Comment = (octahydrate)

| CASNo3_Ref = {{cascite|changed|??}}

| CASNo3 = 13477-21-9

| CASNo3_Comment = (tetrahydrate)

| EINECS = 233-331-6

| RTECS = EV2700000

| UNNumber = 2570

| PubChem = 24962

| PubChem_Comment = (anhydrous)

| PubChem3 = 16211218

| PubChem3_Comment = (octahydrate)

| PubChem1 = 23618914

| PubChem1_Comment = (tetrahydrate)

| ChEBI3 = 86157

| ChEBI3_Comment = (octahydrate)

| Gmelin = 8295

}}

|Section2={{Chembox Properties

| Formula = CdSO₄
CdSO₄·H₂O (monohydrate)
3CdSO₄·8H₂O (octahydrate)

| MolarMass = 208.47 g/mol (anhydrous)
226.490 g/mol (monohydrate)
769.546 g/mol (octahydrate)

| Appearance = White hygroscopic solid

| Odor = odorless

| Density = 4.691 g/cm³ (anhydrous)
3.79 g/cm³ (monohydrate)
3.08 g/cm³ (octahydrate){{RubberBible87th}}

| Solubility = anhydrous:
75 g/100 mL (0 °C)
76.4 g/100 mL (25 °C)
58.4 g/100 mL (99 °C)

---

monohydrate:
76.7 g/100 mL (25 °C)

---

octahydrate:
very soluble

| SolubleOther = slightly soluble in methanol, ethyl acetate
insoluble in ethanol

| MeltingPtC = 1000

| MeltingPt_notes = (anhydrous)
105 °C (monohydrate)
40 °C (octahydrate)

| BoilingPt = (decomposes to basic sulfate and then oxide)

| pKa =

| pKb =

| Viscosity =

| RefractIndex = 1.565

| MagSus = −59.2·10⁻⁶ cm³/mol

}}

|Section3={{Chembox Structure

| MolShape =

| Coordination =

| CrystalStruct = orthorhombic (anhydrous)
monoclinic (hepta & octahydrate)

| Dipole =

}}

|Section4={{Chembox Thermochemistry

| DeltaHf = −935 kJ·mol⁻¹{{cite book| author = Zumdahl, Steven S.|title =Chemical Principles 6th Ed.| publisher = Houghton Mifflin Company| year = 2009| isbn = 978-0-618-94690-7|page=A21}}

| Entropy = 123 J·mol⁻¹·K⁻¹

}}

|Section7={{Chembox Hazards

| ExternalSDS =[https://web.archive.org/web/20080907181930/http://www.vinquiry.com/pdf/MSDS/CADMIUMSULFATE.pdf]

| NFPA-H = 3

| NFPA-F = 1

| NFPA-R = 0

| GHSPictograms = {{GHS06}}{{GHS08}}{{GHS09}}

| GHSSignalWord = Danger

| HPhrases = {{H-phrases|301|330|340|350|360|372|410}}

| PPhrases = {{P-phrases|201|202|260|264|270|271|273|281|284|301+310|304+340|308+313|310|314|320|321|330|391|403+233|405|501}}

| LD50 = 280 mg/kg (oral, rat)

| REL = Ca{{PGCH|0087}}

| PEL = [1910.1027] TWA 0.005 mg/m³ (as Cd)

| IDLH = Ca [9 mg/m³ (as Cd)]

}}

|Section8={{Chembox Related

| OtherAnions = Cadmium acetate,
Cadmium chloride,
Cadmium nitrate

| OtherCations = Zinc sulfate,
Calcium sulfate,
Magnesium sulfate

}}

}}

Cadmium sulfate is the name of a series of related inorganic compounds with the formula CdSO₄·{{mvar|x}}H₂O. The most common form is the monohydrate CdSO₄·H₂O, but two other forms are known CdSO₄·{{frac|8|3}}H₂O and the anhydrous salt (CdSO₄). All salts are colourless and highly soluble in water.