252549

Formaldeído

ACS reagent, 37 wt. % in H₂O, contains 10-15% Methanol as stabilizer (to prevent polymerization)

• Sinônimo(s): Formalina
• Fórmula linear: HCHO
• Número CAS: 50-00-0
• Peso molecular: 30.03
• Beilstein: 1209228
• Número MDL: MFCD00003274
• Código UNSPSC: 12352114
• ID de substância PubChem: 24855218
• NACRES: NA.21

Propriedades

• grau: ACS reagent
• Nível de qualidade: 200
• densidade de vapor: 1.03 (vs air)
• pressão de vapor: 52 mmHg ( 37 °C); 52 mmHg ( 37 °C)
• forma: liquid
• temperatura de autoignição: 572 °F
• contém: 10-15% Methanol as stabilizer (to prevent polymerization)
• concentração: 36.5-38.0%; 37 wt. % in H₂O
• Impurezas: ≤0.006 meq/g Titr. acid
• resíduo de ignição: ≤0.005%
• cor: APHA: ≤10
• índice de refração: n20/D 1.3765
• densidade: 1.09 g/mL at 25 °C (lit.)
• traços de ânion: chloride (Cl^-): ≤5 ppm; sulfate (SO₄^2-): ≤0.002%
• traços de cátion: Fe: ≤5 ppm; heavy metals: ≤5 ppm (by ICP-OES)
• adequação: suitable for manufacturing use (Laboratory chemicals)
• cadeia de caracteres SMILES: [H]C([H])=O
• InChI: 1S/CH2O/c1-2/h1H2
• chave InChI: WSFSSNUMVMOOMR-UHFFFAOYSA-N

Descrição

Descrição geral

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.

Aplicação

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.

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.

forma física

This product is a solution of approximately 37% by weight of formaldehyde gas in water.

Informações de segurança

• Pictogramas: GHS02,GHS06,GHS08,GHS05
• Palavra indicadora: Danger
• Frases de perigo: H226,H301 + H311,H314,H317,H330,H335,H341,H350,H370
• Declarações de precaução: P202 - P210 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Classificações de perigo: Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Carc. 1B - Eye Dam. 1 - Flam. Liq. 3 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 1 - STOT SE 3
• Órgãos-alvo: Eyes,Central nervous system, Respiratory system
• Código de classe de armazenamento: 3 - Flammable liquids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): 132.8 °F - closed cup
• Ponto de fulgor (°C): 56 °C - closed cup