Merck, S5881-1KG, Sodium hydroxide
Size:1 kg, Caustic soda, reagent grade, ≥98%, pellets (anhydrous)
Available Catalog Numbers
Catalog Number: S5881-1KG
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Category
Pack Size1 kg
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| NACRES | NA.21 |
|---|---|
| PubChem Substance ID | 329824556 |
| UNSPSC Code | 12352302 |
| EC Number | 215-185-5 |
| MDL number | MFCD00003548 |
| InChI key | HEMHJVSKTPXQMS-UHFFFAOYSA-M |
| InChI | 1S/Na.H2O/h;1H2/q+1;/p-1 |
| grade | reagent grade |
| agency | suitable for EPA 1621 |
| vapor density | >1 (vs air) |
| vapor pressure | <18 mmHg ( 20 °C) |
| assay | ≥98% |
| form | pellets (anhydrous) |
| technique(s) | cell culture | mammalian: suitable |
| impurities | ≤1.0% sodium carbonate |
| pH | (ca.> 14 at 100 g/l at 20 °C) |
| mp | 318 °C (lit.) |
| solubility | water: soluble 1260 g/L at 20 °C |
| density | 2.13 g/cm3 at 20 °C |
| web metadata keyword.default | DIN38407-42 |
| application(s) | PFAS testing |
| Quality Level | 200 |
| SMILES string | [OH-].[Na+] |
Answer:It consists of anhydrous pellets with an assay of at least 98%.
Answer:Yes. They are used to prepare aqueous alkali solutions and adjust pH; exact-concentration solutions may require standardization.
Answer:Dissolving sodium hydroxide in water releases heat, so the addition rate and temperature must be controlled.
Sodium hydroxide is a strong inorganic base used to prepare alkaline solutions and adjust pH in laboratory procedures. This 1 kg reagent-grade product consists of anhydrous pellets with an assay of at least 98%. Its formula is NaOH and its molar mass is 40.00 g/mol. The pellets dissolve exothermically in water and are suitable for preparing titration reagents, cleaning solutions and other workflows requiring controlled alkalinity when the grade and impurity profile meet method requirements. Sodium hydroxide is hygroscopic and absorbs carbon dioxide from air, which can change the concentration of stored solutions. Prepare and standardize solutions when exact alkalinity matters. Add pellets carefully to water under appropriate temperature control, use compatible containers and protective equipment, and prevent contact with skin, eyes and incompatible substances.
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