Beschrijving
Alizarinerood S (C.I. 58005) is een indicator-kleurstof van zuivere kwaliteit, geleverd met CAS-nummer 130-22-3, empirische formule C₁₄H₇NaO₇S en een molaire massa van 342,26 g/mol. De Colour Index-aanduiding C.I. 58005 identificeert dit anthrachinonsulfonaat dat wordt gebruikt bij de bepaling van pH-waarden en gerelateerde analyses van fysische eigenschappen. Het EG-nummer 204-981-8 maakt de set van wettelijke identificatiegegevens voor documentatie compleet. Dit product van fabrikant Carl ROTH is van zuivere kwaliteit en ondersteunt reproduceerbare kleurreacties bij onderwijs, kwaliteitscontrole en routinematig pH-indicatorwerk. De duidelijke vermelding van de formule, molaire massa en het C.I.-nummer helpt laboratoria om de kleurstof af te stemmen op vastgestelde protocollen en catalogusspecificaties. De glazen verpakking is geschikt voor een veilige opslag en gecontroleerde dosering van vast indicatormateriaal in chemische voorraadruimten en op laboratoriumtafels.
Dit artikel hoort bij Indicatoren & indicatoroplossingen, in Analytische standaarden & referentiematerialen.
Belangrijkste kenmerken
- Absorptie max. (in H2O): 550-560 nm
- Droogverlies (110 °C): ≤10,0 %
- pH-overgangsbereik: 4,3 (geel)-6,3 (roodviolet)
- Overgangsbereik: 9,4 (bruinoranje)-12,0 (violet)
- Geschiktheid als indicator: voldoet
- CAS-nummer: 130-22-3
- Verpakkingsgrootten: 10 g, 25 g, 100 g
- EG-nr.: 204-981-8
- Empirische formule: C₁₄H₇NaO₇S
- Molaire massa: 342,26 g/mol
- Technisch informatieblad:
- Veiligheidsinformatieblad:
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Questions about Alizarinerood S (C.I. 58005), zuiver, 10 g, glas
What is this article?
Alizarinerood S (C.I. 58005), zuiver, 10 g, glas is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Indicators & indicator solutions, inside Analytical standards & reference materials, in Chemicaliën.
An indicator solution changes colour at a stated point, usually a pH interval or a redox potential, so a titration endpoint can be seen. The solvent and the concentration decide how sharp the change is. A solid indicator dye and a ready solution are different articles.
A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.
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