The temperature used for standard tissue processing historically has been room temperature. Temperature can affect the rate of fixation, and modern tissue processors may use elevated temperatures to reduce processing time without adverse effects on tissue morphology. Cold fixation is common in electron microscopy when using glutaraldehyde as a fixative.
1.00496
Formaldehyde solution 4%, buffered, pH 6.9
(approx. 10% Formalin solution) for histology
Synonyme(s) :
Formaline solution, Methanal solution, Methyl aldehyde solution
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About This Item
Code UNSPSC :
41116124
Nomenclature NACRES :
NA.21
Application(s):
diagnostic assay manufacturing
hematology
histology
hematology
histology
pb:
100 °C/1013 hPa
Le tarif et la disponibilité ne sont pas disponibles actuellement.
Produits recommandés
Niveau de qualité
Forme
liquid
IVD
for in vitro diagnostic use
Concentration
3.8-4.2% (acidimetric)
Couleur
colorless
pH
6.7-7.1 ( in H2O)
pb
100 °C/1013 hPa
Pf
-92 °C
Densité
1.017 g/cm3 at 20 °C
Application(s)
diagnostic assay manufacturing
hematology
histology
Température de stockage
15-25°C
Description générale
Formaldehyde (HCOH) is one of the most familiar and effective fixatives. Formaldehyde fixation is suitable for nearly all types of histological tissue, as well as calcified deposits, bone, cartilage, nervous system specimens. 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. This Formaldehyde solution 4% is a ready-to-use working solution that is stabilized with phosphate buffer to protect tissue structures. The development of formic acid will be effective prevented. It is an IVD registered and CE certified product and can be applied for diagnostical purposes. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 1B - Muta. 2 - Skin Sens. 1
Code de la classe de stockage
6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
Classe de danger pour l'eau (WGK)
WGK 3
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Listes réglementaires
Les listes réglementaires sont principalement fournies pour les produits chimiques. Seules des informations limitées peuvent être fournies ici pour les produits non chimiques. L'absence d'indication signifie qu'aucun des composants n'est répertorié. Il incombe à l'utilisateur de s'assurer de l'utilisation sûre et légale du produit.
EU REACH Annex XVII (Restriction List)
CAS No.
Certificats d'analyse (COA)
Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".
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Apprenez-en davantage sur le caractère critique de la coloration de tissus biologiques pour la recherche et la biologie médicale en utilisant des colorants standards et spéciaux.
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Is it okay to fix an entire tissue with 4% PFA at 37°C overnight using product 1004960700 without altering its morphology?
1 réponse-
Utile ?
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Do 4% formaldehyde or 10% formalin solutions contain traces of methanol?
1 réponse-
Product 1004960700 and all other formaldehyde or formalin solutions contain methanol to prevent the formaldehyde from reforming as a polymer or escaping as a gas. If a methanol-free solution is required, paraformaldehyde powders or crystals can be purchased and prepared into methanol-free solutions, although these solutions are unstable and should be prepared fresh daily or kept for only short periods of time.
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