Formaldehyde Soln Min.37% GR 2.5Ltr
GR for analysis stabilized with about 10% methanol ACS,Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 104003.2500
Stock: In Stock
Description
| Catalogue Number | 104003 |
| Synonyms | Formaline solution, Methanal solution, Methylaldehyde solution |
| Description | FORMALDEHYDE SOLUTION MIN. 37% GR FOR AN |
| Overview | 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. |
Product Information
| Grade | ACS,Reag. Ph Eur |
| HS Code | 2912 11 00 |
Physicochemical Information
| Boiling point | 93 - 96 °C (1013 hPa) |
| Density | 1.09 g/cm3 (20 °C) |
| Explosion limit | 7 - 73 %(V) (Formaldehyde) |
| Flash point | 62 °C (Formaldehyde) |
| Ignition temperature | 300 °C (Formaldehyde) |
| Melting Point | <-15 °C |
| pH value | 2.8 - 4.0 (H₂O, 20 °C) |
Storage and Shipping Information
| Storage | Store at +15°C to +25°C. |
Specifications
| 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 % |
