15512

Formaldehyd -Lösung

meets analytical specification of USP, ≥34.5 wt. %

• Synonym(e): Formalin
• Lineare Formel: HCHO
• CAS-Nummer: 50-00-0
• Molekulargewicht: 30.03
• Beilstein: 1209228
• MDL-Nummer: MFCD00003274
• UNSPSC-Code: 12352114
• eCl@ss: 39021101
• PubChem Substanz-ID: 57647382
• NACRES: NA.21

Eigenschaften

• Dampfdichte: 1.03 (vs air)
• Qualitätsniveau: 200
• Dampfdruck: 52 mmHg ( 37 °C)
• Selbstzündungstemp.: 572 °F
• Qualität: meets analytical specification of USP
• Enthält: 9.0-15.0% methanol as stabilizer (GC)
• Konzentration: ≥34.5 wt. %; 25-50%
• Verunreinigungen: acidic reac. substances, complies; residual solvents, complies
• Glührückstand: ≤0.01% (as SO₄)
• Dichte: 1.09 g/mL at 25 °C (lit.)
• Eignung: corresponds for identity
• SMILES String: [H]C([H])=O
• InChI: 1S/CH2O/c1-2/h1H2
• InChIKey: WSFSSNUMVMOOMR-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Formaldehyde solution commercially formaldehyde solution is an aqueous solution containing 37% formaldehyde and 8-10% methanol. Formaldehyde solution can be activated by adding the catalytic amount of lanthanide triflate. This activated formaldehyde solution was employed for the smooth hydroxymethylation reaction of silyl enol ethers. Formaldehyde solution reacts with silyl enol ethers to afford the corresponding hydroxymethylated adducts in high yields.

Anwendung

Formaldehyde solution was used to prepare the formaldehyde stock solution for the development of transparent sol-gels with entrapped sensitive and selective reagents for the detection of formaldehyde in air. It may be used in the preparation of nanocrystalline metal (Cu, Hg, Zn, Bi, Pb) sulfides having different shapes and different particle sizes.

Sonstige Hinweise

The article number 15512-4X2.5L-R will be discontinued. Please order the single bottle 15512-2.5L-R which is physically identical with the same exact specifications.
The article number 15512-6X1L-R will be discontinued. Please order the single bottle 15512-1L-R which is physically identical with the same exact specifications.

Sicherheitshinweise

• Piktogramme: GHS06,GHS08,GHS05
• Signalwort: Danger
• H-Sätze: H301 + H311,H314,H317,H330,H335,H341,H350,H370
• P-Sätze: P202 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Carc. 1B - Eye Dam. 1 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 1 - STOT SE 3
• Zielorgane: Eyes,Central nervous system, Respiratory system
• Lagerklassenschlüssel: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Flammpunkt (°F): 143.6 °F - closed cup
• Flammpunkt (°C): 62 °C - closed cup