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
306576
Hidróxido de sodio
pellets, semiconductor grade, 99.99% trace metals basis
Sinónimos:
«Sosa cáustica»
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Nombre del producto
Hidróxido de sodio, pellets, semiconductor grade, 99.99% trace metals basis
InChI key
HEMHJVSKTPXQMS-UHFFFAOYSA-M
InChI
1S/Na.H2O/h;1H2/q+1;/p-1
SMILES string
[OH-].[Na+]
grade
semiconductor grade
vapor density
>1 (vs air)
vapor pressure
<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)
assay
99.99% trace metals basis
form
pellets
technique(s)
HPLC: suitable
impurities
<1% Na2CO3
Quality Level
pH
(ca.> 14 at 100 g/l at 20 °C)
mp
318 °C (lit.)
solubility
water: soluble 1,260 g/L at 20 °C
density
2.13 g/cm3 at 20 °C
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Este artículo | 1.06498 | 06203 | 795429 |
|---|---|---|---|
| grade semiconductor grade | grade - | grade - | grade ACS reagent, anhydrous |
| assay 99.99% trace metals basis | assay ≥99% NaOH basis (acidimetric) | assay 98-100.5% | assay ≥97% |
| Quality Level 200 | Quality Level 300 | Quality Level 200 | Quality Level 100 |
| form pellets | form pellets | form pellets | form pellets |
| solubility water: soluble 1,260 g/L at 20 °C | solubility 1090 g/L | solubility water: soluble 1260 g/L at 20 °C | solubility water: soluble 1260 g/L at 20 °C |
| impurities <1% Na2CO3 | impurities ≤0.0003% Total nitrogen (N) | impurities ≤0.0005% total nitrogen (N), ≤0.002% heavy metals (as Pb), ≤0.5% Na2CO3 | impurities ≤0.001% N compounds, ≤0.02% NH4OH ppt., ≤1.0% Na2CO3 |
Application
- Alkaliptosis induction counteracts paclitaxel-resistant ovarian cancer cells: Utilizing sodium hydroxide in ATP6V0D1-mediated ABCB1 inhibition reveals a novel approach to overcoming drug resistance in ovarian cancer, promoting cell death through alkaliptosis. This could significantly impact cancer treatment strategies (Chen et al., 2024).
- Ozone-activated lignocellulose films blended with chitosan: Research shows potential for creating biodegradable, edible films using sodium hydroxide in the activation process. This application is particularly relevant in food packaging and could revolutionize how we approach sustainable material science (Ebrahimi et al., 2024).
- Stabilizing fish oil emulsions with tilapia head gelatins: Investigating the effects of sodium hydroxide in the extraction of gelatins, this study highlights its utility in enhancing the stability and usability of fish oil emulsions in food science (Li et al., 2024).
- Cellulose dissolution in ZnO/NaOH/Water solvent solution: Molecular dynamics simulation studies illustrate how sodium hydroxide aids in dissolving cellulose, with temperature-dependent effects providing insights into polymer science applications, especially in textile and material production (Bourassi et al., 2024).
- Recycling Metakaolin/Slag-Based Geopolymer Concrete: Sodium hydroxide plays a crucial role in developing geopolymer concretes capable of withstanding severe freeze-thaw conditions, suggesting significant applications in sustainable construction materials (Liu et al., 2024).
- for the preparation of synthesis solution during the formation of LTA zeolite crystals in the hydrothermal synthesis process.[1]
- in the synthesis of 2-line ferrihydrite (spHm) and rhombohedral Hm (rhHm) and as a base to adjust the pH of the mixed solution.[2]
- to raise the pH of the HEPES buffer during catalytic reactivity to nanoparticle (CRNP) assay and synthesis.[3]
- in the synthesis of zinc oxide nanoparticles from zinc chloride during lithium doping impact on the cathodoluminescence of the nanoparticles.[4]
General description
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
Clase de almacenamiento
8B - Non-combustible corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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