Formaldehyde solution
SIAL/252549 - ACS reagent, 37 wt. % in H2O, contains 10-15% Methanol as stabilizer (to prevent polymerization)
Synonym: Formalin
CAS Number: 50-00-0
Empirical Formula (Hill Notation): CH2O
Molecular Weight: 30.03
MDL Number: MFCD00003274
Linear Formula: HCHO
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 252549-100ML.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 252549-1L.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 252549-500ML.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 252549-25ML
| anion traces | chloride (Cl-): ≤5 ppm |
| sulfate (SO42-): ≤0.002% | |
| autoignition temp. | 572 °F |
| cation traces | Fe: ≤5 ppm |
| heavy metals: ≤5 ppm (by ICP-OES) | |
| color | APHA: ≤10 |
| concentration | 36.5-38.0% |
| 37 wt. % in H2O | |
| contains | 10-15% Methanol as stabilizer (to prevent polymerization) |
| density | 1.09 g/mL at 25 °C (lit.) |
| form | liquid |
| grade | ACS reagent |
| ign. residue | ≤0.005% |
| impurities | ≤0.006 meq/g Titr. acid |
| InChI | 1S/CH2O/c1-2/h1H2 |
| InChI key | WSFSSNUMVMOOMR-UHFFFAOYSA |
| Quality Level | 200  |
| refractive index | n |
| SMILES string | [H]C([H])=O |
| solubility | water: soluble |
| suitability | suitable for manufacturing use (Laboratory chemicals) |
| vapor density | 1.03 (vs air) |
| vapor pressure | 52 mmHg ( 37 °C) |
| Application: | Formaldehyde solution has been used as a fixing agent to fix cells during immunofluorescence imaging and for cross-linking cells during chromatin immunoprecipitation (ChIP) assay. |
| Application: | Formaldehyde solution has been used for cross-linking/fixing of cells in ChIP (chromatin immunoprecipitation) assay. It has been used for fixing of cells for imaging. |
| General description: | Formaldehyde (formalin) is produced by oxidation of methanol. It is made of 37% formaldehyde and impurities such as methanol, small amounts of formic acid, aldehydes and ketones. It is used as a denaturant in formaldehyde-agarose gel electrophoresis of RNA. |
| Packaging: | 1, 4 L in glass bottle |
| Packaging: | 25, 100, 4×100, 500, 6×500 mL in glass bottle |
| Physical form: | This product is a solution of approximately 37% by weight of formaldehyde gas in water. |
| Symbol |     GHS02,GHS05,GHS06,GHS08 |
| Signal word | Danger |
| Hazard statements | H226 - H301 + H311 - H314 - H317 - H330 - H335 - H341 - H350 - H370 |
| Precautionary statements | P201 - P210 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | T |
| Risk Statements | 23/24/25-34-39/23/24/25-40-43 |
| Safety Statements | 26-36/37/39-45-51 |
| RIDADR | UN 2209 8 / PGIII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 132.8 °F - closed cup |
| Flash Point(C) | 56 °C - closed cup |
| Density | 1.09 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352114 |