The long term stability of this material at room temperature has not been determined. However, this product ships at ambient temperature and is known to be stable for at least 2 weeks at ambient temperatures.
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208043
Sodium sulfide nonahydrate
ACS reagent, ≥98.0%
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| Rozmiar/SKU | Dostępność | Cena netto |
|---|---|---|
100 g | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 239,00 zł |
500 g | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 442,00 zł |
Informacje o tej pozycji
Wzór liniowy:
Na2S·9H2O
Numer CAS:
Masa cząsteczkowa:
240.18
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
215-211-5
MDL number:
Assay:
≥98.0%
Grade:
ACS reagent
Form:
crystals or chunks
239,00 zł
Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności
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ACS reagent
Quality Segment
assay
≥98.0%
form
crystals or chunks
reaction suitability
reagent type: inorganic catalyst
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
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.
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.
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Ta pozycja | |||
|---|---|---|---|
| description ACS reagent, ≥98.0% | description ≥98.0% | description ≥99.98% trace metals basis | description 99.99% (trace metals basis) |
| form crystals or chunks | form powder or chunks | form crystals and lumps | form powder |
| assay ≥98.0% | assay ≥98.0% | assay ≥99.98% trace metals basis | assay 99.99% (trace metals basis) |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| grade ACS reagent | grade - | grade - | grade - |
| cation traces Fe:, passes test, NH4+: ≤0.005% | cation traces - | cation traces Fe:, passes test, NH4+: ≤0.005% | cation traces - |
| anion traces SO32- and S2O32-: ≤0.1% | anion traces - | anion traces SO32- and S2O32-: ≤0.1% | anion traces - |
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Słowo ostrzegawcze
Danger
Kody zagrożeń
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B
Klasa składowania
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
Temperatura zapłonu (°F)
Not applicable
Temperatura zapłonu (°C)
Not applicable
Wykazy regulacyjne
Wykazy regulacyjne dotyczą głównie produktów chemicznych. Można w nich podawać ograniczoną liczbę informacji na temat produktów niechemicznych. Brak wpisu oznacza, że żaden ze składników nie znajduje się w wykazie. Użytkownik odpowiada za zagwarantowanie bezpiecznego i zgodnego z prawem stosowania produktu.
1313-84-4
CAS No.
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Do you have room temperature stability data available for this Sodium Sulfide nonahydrate? We have kept it at room temperature in error.
1 answer-
Helpful?
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Hello, I was wondering how this item is packaged and if it is packaged under an oxygen free environment? I am trying to use it to make a sulfide calibration curve and wanted to know if I need to remove a layer of oxidation on the surface of the crystals.
1 answer-
The product is packaged and should be handled under Nitrogen. There is no data indicating whether the product might have a layer of oxidation on its surface.
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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