Skip to Content
Merck
CN

Key Documents

View All Documentation

431648

Sodium sulfide nonahydrate

≥99.98% trace metals basis

Synonym(s):

Disodium sulfide nonahydrate, Sodium sulfide enneahydrate

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
Na2S·9H2O
CAS Number:
1313-84-4
Molecular Weight:
240.18
NACRES:
NA.23
PubChem Substance ID:
24867038
UNSPSC Code:
12352300
EC Number:
215-211-5
MDL number:
MFCD00149184
Assay:
≥99.98% trace metals basis
Form:
crystals and lumps
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

assay

≥99.98% trace metals basis

form

crystals and lumps

reaction suitability

reagent type: catalyst
core: sodium

impurities

<100 ppm total metallic impurities

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

General description

Sodium sulfide nonahydrate is a chemical compound with the formula Na2S-H2O. It is a white to yellow hygroscopic solid that is highly soluble in water and has a strong, unpleasant odor. Sodium sulfide nonahydrate is typically made by dissolving elemental sulfur in a solution of sodium hydroxide, which leads to the formation of sodium sulfide. The nonahydrate form of the compound is formed by adding excess water to the solution, which leads to the formation of a crystalline solid with nine molecules of water per molecule of sodium sulfide. Sodium sulfide nonahydrate is often used as a reducing agent in chemical reactions as well as a flotation agent in the mining industry. It is also used in the production of dyes, pigments, and other chemicals.

Application

Sodium sulfide nonahydrate (Na2S.9H2O) can be reacted with α,ω-dibromo and/or α,ω-dichloroalkane for the synthesis of polyalkylene sulfide. It can be used as a reducing agent for the removal of nitrogen oxide from the exhaust gas. Na2S.9H2O can also be used as an inexpensive sulfur source for the synthesis of heterocyclic thiochromes.

Still not finding the right product?

Explore all of our products under Sodium sulfide nonahydrate

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

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Regulatory Information

监管及禁止进口产品

This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKDB5946
MKCQ8774
MKCM7034
MKCK4607
MKCF5850

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Absorption-reduction technique assisted by ozone injection and sodium sulfide for NOx removal from exhaust gas
Mok YS
Chemical Engineering Journal, 118(1-2), 63-67 (2006)
The synthesis of polymeric sulfides by reaction of dihaloalkanes with sodium sulfide
Smith K, et al.
Journal of Sulfur Chemistry, 32(6), 521-531 (2011)
The reaction products of sulfide and S-nitrosoglutathione are potent vasorelaxants.
Berenyiova A, et al.
Nitric Oxide, 46, 123-130 (2015)
View All Related Papers

Global Trade Item Number

SKUGTIN
431648-250G04061832108391
431648-50G04061832108407