sodium sulfide

(redirected from Na2s)
Also found in: Encyclopedia.

sodium sulfide

n.
A hygroscopic yellow compound, Na2S, used as a metal ore reagent and in photography, engraving, and printing.
References in periodicals archive ?
Raschman, Leaching of stibnite by mixed Na2S and NaOH solutions, Acta Technica Corviniensis, Bull.
The researchers mixed tea leaf extract with cadmium sulphate (CdSO4) and sodium sulphide (Na2S) and allowed the solution to incubate, a process which causes quantum dots to form.
Buffer solution modulation: Buffer solutions were prepared as described by Menke et al [14] to include a trace-element solution, a carbonic acid buffer solution, a phosphate buffer solution, a sodium sulfide reducing solution (Na2S) and a resazurin indicator.
The electrode is then dipped into 0.1 M Na2S methanol solution at room temperature for 30 sec, rinsed with methanol, and dried by heating in air.
After rinsing, 2 ml of sodium sulfide solution (0.32% Na2S in 100 mM phosphate buffer pH 7.4) and a sulfide glutaraldehyde solution (0.16% Na2S and 3% glutaraldehyde in 100 mM phosphate buffer pH 7.4) were bolus injected.
The association between lead contamination on the hand and blood lead concentration: a workplace application of the sodium sulphide (Na2S) test.
The GO-AgNP sheets were crosslinked by PEG in the presence of Na2S 44, which was accomplished by adding 200 mg of PEG dissolved in 5 mL of water under continuous sonication for 10 min, followed by addition of 20 mg of Na2S dissolved in 5 mL water.
Then, the detecting sensors were successively inserted in six kinds of different concentrations of Na2S solution formulated by PBS buffer (5 [micro]L, 10 [micro]L, 20 [micro]L, 40 [micro]L, 80 [micro]L, and 160 [micro]L).
Preparation of Artificial Saliva: The artificial saliva used in this study was of the following composition: Sodium chloride (NaCl) 0.400 g; Potassium chloride (KCl) 0.400 g; Calcium chloride monohydrate (CaCl2H2O) 0.795 g; Sodium dihydrogen phosphate (NaH2PO4) 0.69 g; Disodium sulphide hydrate (Na2S x 9H20) 0.005 g; Urea 1.0 g; Distilled water 1000 ml.
The application of Na2S increases the phosphorylation of serine 1179 in eNOS to raise serum nitrite and nitrate levels and attenuates cardiac arrest-induced mitochondrial dysfunction.
Na2S.9H2O (0.5 g/l) generally added before inoculation.