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.pdf
1.06462
Sodium hydroxide
pellets EMPLURA®
Synonim(y):
Caustic soda
Wybierz wielkość
| Gabaryty przesyłki | SKU | Dostępność | Cena netto |
|---|
Informacje o tej pozycji
vapor density
>1 (vs air)
Quality Level
vapor pressure
<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)
product line
EMPLURA®
assay
≥97% (NaOH, acidimetric)
form
pellets
technique(s)
cell culture | stem cell: suitable
pH
>14 (20 °C, 100 g/L in H2O)
mp
318 °C (lit.)
solubility
1090 g/L
density
2.13 g/mL at 20 °C
anion traces
carbonate (as Na2CO3): ≤1%, chloride (Cl-): ≤0.012%, sulfate (SO42-): ≤0.01%
cation traces
Al: ≤0.002%, Fe: ≤0.002%, heavy metals (as Pb): ≤0.002%
storage temp.
2-30°C
InChI
1S/Na.H2O/h;1H2/q+1;/p-1
InChI key
HEMHJVSKTPXQMS-UHFFFAOYSA-M
Application
- Improvement of durability and drying shrinkage of sodium carbonate activated slag through the incorporation of calcium hydroxide and sodium hydroxide.: This study investigates the effects of incorporating sodium hydroxide and calcium hydroxide into sodium carbonate activated slag. The results show significant improvements in the durability and drying shrinkage properties of the material, making it a viable option for construction applications where enhanced performance is required (Construction and Building Materials, 2020).
- Effect of Sodium Silicate to Hydroxide Ratio and Sodium Hydroxide Concentration on the Physico-Mechanical Properties of Geopolymer Binders.: This study investigates the influence of the sodium silicate to sodium hydroxide ratio and the concentration of sodium hydroxide on the mechanical properties of metakaolin-based geopolymer binders. The results indicate that both the ratio and concentration significantly affect the compressive and flexural strength of the binders, providing valuable insights for optimizing geopolymer formulations (East African Journal of Engineering, 2023).
- Effect of Sodium Hydroxide, Liquid Sodium Silicate, Calcium Hydroxide, and Slag on the Mechanical Properties and Mineral Crystal Structure Evolution of Polymer Materials.: This research examines the roles of sodium hydroxide, liquid sodium silicate, calcium hydroxide, and slag in the development of mechanical properties and mineral crystal structures in polymer materials. The study reveals that sodium hydroxide is essential for creating a strongly alkaline environment that promotes the formation of beneficial mineral crystals, thereby enhancing the compressive strength of the materials (Crystals, 2021).
- Effects of Sodium Hydroxide and Calcium Hydroxide on the Phase Equilibria of Methane Hydrates.: This study explores the impact of sodium hydroxide and calcium hydroxide on the phase equilibria of methane hydrates. The findings provide insights into how these compounds influence hydrate stability and formation, which is critical for applications in natural gas storage and transportation (SSRN Electronic Journal, 2022).
Analysis Note
Carbonate (as Na₂CO₃): ≤ 1.0 %
Chloride (Cl): ≤ 0.012 %
Sulfate (SO₄): ≤ 0.01 %
Heavy metals (as Pb): ≤ 0.002 %
Al (Aluminium): ≤ 0.002 %
Fe (Iron): ≤ 0.002 %
Other Notes
Legal Information
1 of 1
Ta pozycja | |||
|---|---|---|---|
| assay ≥97% (NaOH, acidimetric) | assay ≥98.0-100.5% (total alkilinity calculated as NaOH) | assay ≥99% NaOH basis (acidimetric) | assay ≥98% |
| Quality Level 200 | Quality Level 500 | Quality Level 300 | Quality Level 200 |
| form pellets | form pellets, solid | form pellets | form pellets (anhydrous) |
| solubility 1090 g/L | solubility water: 1090 g/L at 20 °C | solubility 1090 g/L | solubility water: soluble 1260 g/L at 20 °C |
| pH >14 (20 °C, 100 g/L in H2O) | pH >14 (20 °C, 100 g/L in H2O) | pH >14 (20 °C, 100 g/L in H2O) | pH (ca.> 14 at 100 g/l at 20 °C) |
| storage temp. 2-30°C | storage temp. 15-25°C | storage temp. 2-30°C | storage temp. - |
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
Klasa składowania
8A - Combustible, corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certyfikaty analizy (CoA)
Poszukaj Certyfikaty analizy (CoA), wpisując numer partii/serii produktów. Numery serii i partii można znaleźć na etykiecie produktu po słowach „seria” lub „partia”.
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Powiązane treści
Numer pozycji handlu globalnego
| SKU | NUMER GTIN |
|---|---|
| 1064625000 | 04022536077260 |
| 1064621000 | 04022536077246 |
| 1064629050 | 04022536077284 |
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How can I determine the shelf life / expiration / retest date of this product?
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Helpful?
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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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This has been suggested to put in our septic waste system to dissolve the tree roots which are growing into the system. Is this correct??
1 answer-
This product is an R&D chemical for use in a laboratory setting. A quick web search led me to find products which are specifically recommended for the application you describe, but this product would not be recommended. The SDS mentions that this product is harmful to aquatic life, should not be allowed to enter drains, etc. Using this product outside of a laboratory setting is not intended. Please review the product SDS.
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