Description
Sodium hydroxide solution 45 % is an extra pure aqueous alkali with the empirical formula NaOH, CAS number 1310-73-2 and a molar mass of 40,01 g/mol. The concentrated solution has a density of 1,48 g/cm³ and a boiling point of 135 °C, giving laboratories a strong, well-characterised base for analytical and preparative work. The extra pure grade supports preparation of standard solutions and routine procedures where consistent composition is important. This reagent from manufacturer Carl ROTH is identified by EG number 215-185-5 and UN number 1824, underlining its classification as a corrosive alkaline liquid that requires suitable personal protective equipment and careful handling. The high concentration allows efficient dilution to working strengths while limiting the volume of stock that must be stored. Educational, research and quality-control laboratories can rely on this ready-to-use sodium hydroxide solution whenever a robust, clearly specified alkaline reagent is needed.
This article is part of Bases & alkalis, in Acids & bases.
Key features
- Assay (NaOH): 44,0-46,0 %
- Density (20 °C): 1,468-1,488 g/cm³
- Sodium carbonate: ≤0,2 %
- Sodium chloride: ≤0,01 %
- Iron (Fe): ≤0,001 %
- CAS number: 1310-73-2
- Pack sizes: 1 l, 2.5 l, 10 l, 25 l, 5 l
- EG nr.: 215-185-5
- Purity: grade: extra pure
- Molar mass: 40,01 g/mol
- Density: 1,48 g/cm³
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
DangerHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Sodium hydroxide solution 45 %, extra pure, 1 l, plastic
What is this article?
Sodium hydroxide solution 45 %, extra pure, 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.
How does ordering and shipping work?
We deliver across the EU, usually within 2 to 5 working days. More is on Delivery across the EU. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
