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31665

Sigma-Aldrich

Solfato di zinco eptaidrato

Zinc sulfate heptahydrate

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

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About This Item

Formula condensata:
ZnSO4 · 7H2O
Numero CAS:
7446-20-0
Peso molecolare:
287.56
Numero CE:
231-793-3
Numero MDL:
MFCD00149894
Codice UNSPSC:
12352302
ID PubChem:
329753872
NACRES:
NA.21
Saggio:
≥99.5%
Stato:
powder or crystals
Prezzi e disponibilità al momento non sono disponibili

Grado

ACS reagent
puriss. p.a.

Livello qualitativo

200

agenzia

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

Saggio

≥99.5%

Stato

powder or crystals

Impurezze

≤0.0005% total nitrogen (N)

pH

4.4-5.6 (20 °C, 5%)

Anioni in tracce

chloride (Cl-): ≤5 mg/kg

Cationi in tracce

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

Stringa SMILE

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
RZLVQBNCHSJZPX-UHFFFAOYSA-L

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Categorie correlate

Descrizione generale

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.[1]

Applicazioni

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.[2]
  • Preparation of internal standard (IS) working solution for use in liquid chromatography (LC) coupled with mass spectrometry (MS) analysis.[3]
  • Titrimetric estimation of holmium content in the holmium loaded poly(L-lactic acid) films and microspheres.[4]

Avvertenze

Danger

Indicazioni di pericolo

H302,H318,H410

Classi di pericolo

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

Codice della classe di stoccaggio

13 - Non Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

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Certificati d'analisi (COA)

Lot/Batch Number
BCCL6599
BCCL5655
STBL3841
BCCJ0949
BCCH1074

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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)
Preparation of Cu2ZnSnS4 thin films by sulfurization of co-electroplated Cu-Zn-Sn precursors.
Araki H, et al.
Physica Status Solidi, 6(5), 1266-1268 (2009)
Necrolytic acral erythema.
Emily Grauel et al.
Journal of drugs in dermatology : JDD, 11(11), 1370-1371 (2012-11-09)
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Questions

  1. Where can i find the Stability information?

    1 answer

    1. The best source of stability information for this product is the Certificate of Analysis. This product is not assigned an expiration date, but is set up on a retest schedule. If sufficient quantity of a given lot is available as the retest date approaches, the product is reassayed and the retest date is then extended, provided material meets all required specifications. For this product, a retest date of 3 years from the date of quality release is assigned. Products with no retest or expiration date listed on the Certificate of Analysis are warranted for 1 year from the date of shipment. For products that are assigned an expiration date, the information is also available on the product label. Please see the link below to review a sample Certificate of Analysis for this product:
      https://www.sigmaaldrich.com/certificates/Graphics/COfAInfo/fluka/pdf/PDF732367.pdf

      This product is stored at room temperature. For this and other storage condition information please see the link below to review the SDS.
      https://www.sigmaaldrich.com/sds/sigald/31665

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