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Zinc sulfate

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Zinc sulfate is a widely used ingredient in cosmetics, personal care, and skincare formulations. Depending on its function, it may serve as a moisturizer, preservative, emulsifier, or active ingredient to enhance the overall effectiveness and performance of a product.

Zinc sulfate (Wikipedia)
This article is about the chemical compound. For the use of zinc sulfate as a medication, see Zinc sulfate (medical use).

Zinc sulfate is an inorganic compound with the formula ZnSO4. It forms hydrates ZnSO4·nH2O, where n can range from 0 to 7. All are colorless solids. The most common form includes water of crystallization as the heptahydrate, with the formula ZnSO4·7H2O. As early as the 16th century it was prepared on a large scale, and was historically known as "white vitriol" (the name was used, for example, in 1620s by the collective writing under the pseudonym of Basil Valentine).[citation needed] Zinc sulfate and its hydrates are colourless solids.

Zinc sulfate
Names
IUPAC name
Zinc sulfate
Other names
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.028.904 Edit this at Wikidata
EC Number
  • 231-793-3
KEGG
RTECS number
  • ZH5260000
UNII
UN number 3077
  • InChI=1S/H2O4S.Zn/c1-5(2,3)4;/h(H2,1,2,3,4);/q;+2/p-2 checkY
    Key: NWONKYPBYAMBJT-UHFFFAOYSA-L checkY
  • InChI=1/H2O4S.Zn/c1-5(2,3)4;/h(H2,1,2,3,4);/q;+2/p-2
    Key: NWONKYPBYAMBJT-NUQVWONBAU
  • [Zn+2].[O-]S([O-])(=O)=O
Properties
ZnSO4
Molar mass
  • 161.44 g/mol (anhydrous)
  • 179.47 g/mol (monohydrate)
  • 287.53 g/mol (heptahydrate)
Appearance white powder
Odor odorless
Density
  • 3.54 g/cm3 (anhydrous)
  • 2.072 g/cm3 (hexahydrate)
Melting point 680 °C (1,256 °F; 953 K)
  • decomposes (anhydrous)
  • 100 °C (heptahydrate)
  • 70 °C, decomposes (hexahydrate)
Boiling point 740 °C (1,360 °F; 1,010 K)
  • (anhydrous)
  • 280 °C, decomposes (heptahydrate)
57.7 g/100 mL, anhydrous (20 °C) (in aqueous solutions with a pH < 5)
Solubility alcohols
−45.0·10−6 cm3/mol
1.658 (anhydrous), 1.4357 (heptahydrate)
Thermochemistry
120 J·mol−1·K−1
−983 kJ·mol−1
Hazards
GHS labelling:
GHS05: CorrosiveGHS07: Exclamation markGHS09: Environmental hazard
Danger
H302, H318, H410
P264, P270, P273, P280, P301+P312, P305+P351+P338, P310, P330, P391, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
3
0
0
Flash point Non-flammable
Safety data sheet (SDS) ICSC 1698
Related compounds
Other cations
Related compounds
 Copper(II) sulfate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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