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Formaldéhyde ≥37% en solution aqueuse stabilisé, GR ACS, Reag. Ph. Eur. pour analyses, Sigma-Aldrich®

Marques : Merck
Ratings: Ecrire un avis

Total Evaluation: 0
Moyenne des Notes : 0.0 sur 5

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Stabilisation: stabilisé avec methanol 10 %
M-Clarity™ (Niveau de qualité) = MQ400

1.04003.1000 1.04003.2500 1.04003.9025 1.04003.5000
1.04003.1000EA 49.8 EUR
1.04003.1000 1.04003.2500 1.04003.9025 1.04003.5000
Formaldéhyde ≥37% en solution aqueuse stabilisé, GR ACS, Reag. Ph. Eur. pour analyses, Sigma-Aldrich®
Formaldéhyde

—Formaldehyde (HCOH) is one of the most familiar and effective fixatives. The fixation of the histological specimen material of human or animal origin is commonly performed in a 4% or 10% Formaldehyde solution. Chemically, the 4 % Formaldehyde solution equals a 10 % Formalin solution. The Formaldehyde solution min. 37% is a stock solution that is used for histology and can be diluted with e.g. PBS to 4% ready-to-use fixation solution.

Formule: CH₂O
Température de stockage: Température ambiante
Numéro MDL: MFCD00003274
Numéro CAS: 50-00-0
EINECS: 200-001-8
UN: 2209
ADR: 8,III

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Résultats des tests de spécification

Assay (acidimetric) 36.5 - 38.0 %
Assay (iodometric) 36.5 - 38.0 %
Identity passes test
Color ≤ 10 Hazen
Appearance of solution passes test
Free acid (as HCOOH) ≤ 0.025 %
Density (20 °C) 1.080 - 1.090 g/ml
Chloride (Cl) ≤ 0.0001 %
Sulfate (SO₄) ≤ 0.002 %
Heavy metals (as Pb) ≤ 0.0002 %
Fe (Iron) ≤ 0.0001 %
Methanol (GC) 9.0 - 11.0 %
Sulfated ash ≤ 0.002 %


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