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31665

Zinc sulfate heptahydrate

Name: Zinc sulfate heptahydrate
Brand: SIGALD

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5%

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About This Item

Linear Formula:

ZnSO₄ · 7H₂O

CAS Number:

7446-20-0

Molecular Weight:

287.56

NACRES:

NA.21

PubChem Substance ID:

329753872

UNSPSC Code:

12352302

EC Number:

231-793-3

MDL number:

MFCD00149894

Assay:

≥99.5%

Form:

powder or crystals

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Properties

Quality Level

200

agency

USP/NF, reag. ISO, reag. Ph. Eur.

grade

ACS reagent, puriss. p.a.

assay

≥99.5%

form

powder or crystals

impurities

≤0.0005% total nitrogen (N)

pH

4.4-5.6 (20 °C, 5%)

anion traces

chloride (Cl^-): ≤5 mg/kg

cation traces

As: ≤0.5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤2 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤10 mg/kg, Mg: ≤10 mg/kg, Mn: ≤2 mg/kg, Na: ≤5 mg/kg, Pb: ≤5 mg/kg

SMILES string

O.O.O.O.O.O.O.[Zn++].[O-]S([O-])(=O)=O

InChI

1S/H2O4S.7H2O.Zn/c1-5(2,3)4;;;;;;;;/h(H2,1,2,3,4);7*1H2;/q;;;;;;;;+2/p-2

InChI key

RZLVQBNCHSJZPX-UHFFFAOYSA-L

Description

General description

Zinc sulfate heptahydrate has various industrial applications. It is widely employed as an electrolyte for zinc electroplating and for the storage of solar energy in various solar appliances. Its crystals exhibit diamagnetism.

Application

Zinc sulfate heptahydrate may be used in the following studies:

To compose electrolyte for the electrodeposition of Cu-Zn-Sn precursors on Mo-coated glass substrates.
Preparation of internal standard (IS) working solution for use in liquid chromatography (LC) coupled with mass spectrometry (MS) analysis.
Titrimetric estimation of holmium content in the holmium loaded poly(L-lactic acid) films and microspheres.

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pictograms

GHS05,GHS07,GHS09

signalword

Danger

hcodes

H302,H318,H410

pcodes

P264 - P273 - P280 - P301 + P312 - P305 + P351 + P338 - P391

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Characterization of poly(L-lactic acid) microspheres loaded with holmium acetylacetonate.

J F Nijsen et al.

Biomaterials, 22(22), 3073-3081 (2001-09-29)

Holmium-loaded PLLA microspheres are useful systems in radioembolization therapy of liver metastases because of their low density, biodegradability and favourable radiation characteristics. Neutron activated Ho-loaded microspheres showed a surprisingly low release of the relatively small holmium complex. In this paper

Nucleation Kinetics, Growth and Characterization Studies of a Diamagnetic Crystal-Zinc Sulphate Heptahydrate (ZSHH).

Kanagadurai R, et al.

Journal of Chemistry, 6(3), 871-879 (2009)

Organic solvents compromise performance of internal standard (ascomycin) in proficiency testing of mass spectrometry-based assays for tacrolimus.

Kimberly L Napoli

Clinical chemistry, 52(4), 765-766 (2006-04-06)

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Global Trade Item Number

SKU	GTIN
31665-1KG	04061826691045
31665-25KG	04061833366158
31665-500G	04061826691069