Description
Sodium hydroxide solution 20 %, p.a. is an aqueous alkali reagent with CAS number 1310-73-2, empirical formula NaOH and molar mass 40,01 g/mol. This analytical-grade preparation is Laboratories use the defined 20 % concentration for pH adjustment, acid–base titrations, saponification and general neutralization in analytical and preparative chemistry. The solution is associated with EG number 215-185-5 and UN number 1824, indicating standard corrosive alkaline handling requirements in the laboratory. Available from manufacturer Carl ROTH, the plastic pack supports convenient bench-scale dispensing for routine workflows. Its p.a. quality and clearly stated physical data help deliver reproducible results in research, quality control and process chemistry. suits daily consumption while the stated density and molar mass support accurate preparation of working dilutions when needed.
Key features
- Assay: 18-22 %
- Density (20 °C): 1.197-1.241
- Carbonate: ≤1 %
- Chloride (Cl): ≤0.005 %
- Sulphate (SO4): ≤0.005 %
- Heavy metals (as Pb): ≤0.0005 %
- Fe (Iron): ≤0.001 %
- CAS number: 1310-73-2
- Pack sizes: 1 l, 2.5 l, 5 l, 10 l, 25 l
- EG nr.: 215-185-5
- Molar mass: 40,01 g/mol
- Density: 1,22 g/cm³
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Danger
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Sodium hydroxide solution, 20 %, p.a., 1 l, plastic
What is this article?
Sodium hydroxide solution, 20 %, p.a., 1 l, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Bases & alkalis, inside Acids & bases, in Lab chemicals.
A base or an alkali is sodium hydroxide, potassium hydroxide, ammonia and their relatives, as solid or as solution. The carbonate that a hydroxide picks up from the air changes a titre. Concentration and purity are the specification. Concentrated alkalis attack skin and aluminium.
An acid donates a proton. A base accepts one. In the bottle, the practical differences are the concentration, the purity and the anion or cation that comes along. Concentrated mineral acids are a different article from a dilute volumetric solution. The water in the acid, and the trace metals, decide whether it can be used for analysis. Check the substance on PubChem and the classification on ECHA CLP. Transport is the UNECE dangerous-goods framework. The legal texts are the CLP Regulation and REACH.
Which category should I open next?
The category is Acids & bases. The sub-category is Bases & alkalis. The catalogue is Lab chemicals.
Shelves beside this one are Acids.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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