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13468

Sigma-Aldrich

Sodium sulfide hydrate

≥60%, scales

Synonym(s):

μ-Sulfidedisodium hydrate

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About This Item

Empirical Formula (Hill Notation):
Na2S · xH2O
CAS Number:
27610-45-3
Molecular Weight:
78.04 (anhydrous basis)
EC Number:
215-211-5
MDL number:
MFCD00003498
UNSPSC Code:
12161600
PubChem Substance ID:
57647096
NACRES:
NA.22

form

scales

Quality Level

100

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.

Signal Word

Danger

Hazard Classifications

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

Supplementary Hazards

EUH031

Storage Class Code

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
STBL3845
SDBB1085
STBL2943
BCCK6303
BCCK7855

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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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A series of elastomeric nanocomposites with superior tensile strength and extensibility, simultaneously exhibiting softening, was prepared using in situ polymerization by homogeneously dispersing TEMPO-oxidized cellulose individualized nanofibers (TOCNs) in a polyurethane urea (PUU) matrix. The structure of these PUU composites
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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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