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Merck

13468

Sigma-Aldrich

Sodium sulfide hydrate

≥60%, scales

Sinónimos:

μ-Sulfidedisodium hydrate

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About This Item

Fórmula empírica (notación de Hill):
Na2S · xH2O
Número de CAS:
Peso molecular:
78.04 (anhydrous basis)
EC Number:
MDL number:
UNSPSC Code:
12161600
PubChem Substance ID:
NACRES:
NA.22

form

scales

Quality Level

reaction suitability

core: sodium
reagent type: catalyst

concentration

≥60%

anion traces

chloride (Cl-): ≤100 mg/kg

storage temp.

2-8°C

SMILES string

[Na]S[Na]

InChI

1S/2Na.S

InChI key

CXPWOVUZRAFMDA-UHFFFAOYSA-N

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General description

May contain up to 40% water.

Application

Nucleophile and reducing agent derived from H2S; reagent for the synthesis of thiols, thioethers, and acyclic sulfides, di-, and polysulfides; reduces aromatic nitro compounds to amines; reduces sulfoxides to sulfides.

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

supp_hazards

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Optically pure enantiomers of the chiral tetrahydroxythiepane derivative 3,6-dihydroxy-4,5-O-isopropylidene-thiepane (3) are obtained using a novel protocol in which a library of all possible stereoisomers of 3 is synthesized, followed by two-step stereoselective chromatography, using, first, conventional achiral and, then, chiral
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Volatile fatty acids (VFAs), the intermediate of the anaerobic process, are considered to be the critical, high-sensitive and reliable indicators of the process stability. Close monitoring and control of VFAs are paramount for the efficient operation of the anaerobic reactors.
Total synthesis of xerulinic acid.
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We report here on a one-pot, mild and low cost aqueous-based synthetic route for the preparation of colloidally stable and highly luminescent dual-doped Ag,Ni:ZnCdS/ZnS core/shell quantum dots (QDs). The pure dopant emission of the Ni-doped core/shell QDs was found to

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