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208043

Sigma-Aldrich

Sodium sulfide nonahydrate

ACS reagent, ≥98.0%

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Linear Formula:
Na2S·9H2O
CAS Number:
Molecular Weight:
240.18
EC Number:
MDL number:
PubChem Substance ID:

grade

ACS reagent

Quality Level

assay

≥98.0%

form

crystals or chunks

reaction suitability

reagent type: catalyst
core: sodium

color

colorless to slightly yellow

anion traces

SO32- and S2O32-: ≤0.1%

cation traces

Fe:, passes test
NH4+: ≤0.005%

storage temp.

2-8°C

SMILES string

O.O.O.O.O.O.O.O.O.[Na]S[Na]

InChI

1S/2Na.9H2O.S/h;;9*1H2;

Inchi Key

UIINQVYGFKNSPA-UHFFFAOYSA-N

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1 of 4

This Item
SX0770239321S2006
vibrant-m

208043

Sodium sulfide nonahydrate

-
vibrant-m

SX0770

Sodium Sulfide, Nonahydrate

-
vibrant-m

239321

Sodium sulfite

Essential Grade
vibrant-m

S2006

Sodium sulfide nonahydrate

-
assay

≥98.0%

assay

≥98.0% (iodometric)

assay

≥98.0%

assay

≥98.0%

form

crystals or chunks

form

-

form

powder or crystals

form

powder or chunks

grade

ACS reagent

grade

-

grade

ACS reagent

grade

-

cation traces

Fe:, passes test, NH4+: ≤0.005%

cation traces

Fe:, passes test, NH4+: ≤0.005%

cation traces

Fe: ≤0.001%, heavy metals (as Pb): ≤0.001%

cation traces

-

anion traces

SO32- and S2O32-: ≤0.1%

anion traces

-

anion traces

chloride (Cl-): ≤0.02%

anion traces

-

General description

Sodium sulfide nonahydrate participates in the conversion of nitroxides to amines, via reduction.

application

Sodium sulfide nonahydrate has been used as a source of H2S, to study the effect of H2S on amyloid fibrils associated with neurodegenerative diseases. It has been used in the preparation of sulfide standards for the quantitative analysis of sulfides in raw wastewater (sewage) samples.
It serves as a catalyst during synthesis of thioamides.
Sodium sulfide nonahydrate has been used as a standard for the quantification of volatile sulfur compounds in cheese samples by gas chromatography. It reacts with 4-(2′-hydroxyaryl)-2-(N,N-dialkylamino)-1,3-dithiolium perchlorates in ethanol at room temperature and boiling ethanol to form 1,3-dithiole-2-thiones and 2′-hydroxyacetophenones, respectively. Sodium sulfide nonahydrate may be used as a reducing agent for the conversion of vic-dibromides to the corresponding olefins via reductive debromination.

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B

Storage Class

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Customers Also Viewed

A new reduction system: combination of sodium sulfide (sodium hydrosulfide) with phase transfer agent in a two-phase mixture. Reductive debromination ofvic-dibromides to olefins.
Nakayama J, et al.
Tetrahedron Letters, 24(29), 3001-3004 (1983)
Reaction of 4-(2'-Hydroxyaryl)-1, 3-dithiolium Salts with Sodium Sulfide. A Selective Synthesis of 2'-Hydroxyacetophenones.
Birsa ML.
Synthetic Communications, 33(17), 3071-3076 (2003)
Reduction of nitroxides to amines by sodium sulfide.
Kornblum N and Pinnick HW.
The Journal of Organic Chemistry, 37(12), 2050-2051 (1972)
Preservation and simultaneous analysis of relevant soluble sulfur species in sewage samples
Keller-Lehmann B, et al.
Proceedings of the 2nd International Conference on Intelligent Technologies and Engineering Systems (ICITES2013). Springer International Publishing, 2014., 26 (2006)
Daniel L Priebbenow et al.
Chemical Society reviews, 42(19), 7870-7880 (2013-06-25)
The Willgerodt-Kindler reaction has, in recent years, received limited attention and application in synthetic organic chemistry. With the advent of new technology such as microwave-assisted heating, several new, high-yielding, practical, and more environmentally friendly reaction protocols have been developed. This

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