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Alizarin red S, Feigl reagent and sodium cobaltinitrite - Reagents & Materials

What you need to perform one test: reagents, kits, consumables, equipment and quality controls, with their official basis. Quantities follow the validated method or the manufacturer's instructions for use (IFU).

Back to Alizarin, Feigl & Cobaltinitrite

Construction materials & civil engineering · General

Alizarin red S, Feigl reagent and sodium cobaltinitrite

Petrographic mineral differentiation

Reagents & stains

ItemProcure
Alizarin red S carbonate stainPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site
Feigl mineral reagentPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site
Sodium cobaltinitrite feldspar stain. Each has its own acid/base/pretreatment and rinse requirementsPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site

Kits

ItemProcure
Optional prepared mineral-stain solutions selected individually after choosing the controlled petrographic procedurePer validated method / manufacturer IFUMerckRecommended · Official manufacturer site

Consumables & materials

ItemProcure
Uncovered thin sections/polished surfacesPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site
Stain traysPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site
DroppersPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site
SlidesPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site
Compatible sample supportsPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site

Equipment

ItemProcure
Petrographic microscopePer validated method / manufacturer IFUMerckRecommended · Official manufacturer site
Preparation saw/grinderPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site
Extracted chemistry stationPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site
Specialised HF facilities only for a selected HF-based pretreatmentPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site

Controls & reference materials

ItemProcure
Known target mineralsPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site
Non-target referencesPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site
Unstained companionPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site
Individual reagent blanksPer validated method / manufacturer IFUMerckRecommended · Official manufacturer site

Official basis (Framework): Retain as specialist petrographic aids. ASTM C856 is the concrete-examination framework; the chosen staining reaction needs an identified method and confirmatory interpretation.

Procurement note: C856 scope is not a formula source for all three reagents. Procure the defined Feigl/other formulation after method selection; no combined stain mixture is intended.

Sources:G081 ASTM International

Procurement links open the manufacturer's or distributor's page in a new tab. STAINIC does not sell these items; always buy products validated for diagnostic use and follow local regulations.

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