15512

Formaldehyde solution

meets analytical specification of USP, ≥34.5 wt. %

• Synonym(s): Formalin
• Linear Formula: HCHO
• CAS Number: 50-00-0
• Molecular Weight: 30.03
• Beilstein: 1209228
• MDL number: MFCD00003274
• UNSPSC Code: 12352114
• eCl@ss: 39021101
• PubChem Substance ID: 57647382
• NACRES: NA.21

Properties

• vapor density: 1.03 (vs air)
• Quality Level: 200
• vapor pressure: 52 mmHg ( 37 °C)
• autoignition temp.: 572 °F
• quality: meets analytical specification of USP
• contains: 9.0-15.0% methanol as stabilizer (GC)
• concentration: ≥34.5 wt. %; 25-50%
• impurities: acidic reac. substances, complies; residual solvents, complies
• ign. residue: ≤0.01% (as SO₄)
• density: 1.09 g/mL at 25 °C (lit.)
• suitability: corresponds for identity
• SMILES string: [H]C([H])=O
• InChI: 1S/CH2O/c1-2/h1H2
• InChI key: WSFSSNUMVMOOMR-UHFFFAOYSA-N

Description

General description

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.

Application

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.

Other Notes

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.

Safety Information

• Pictograms: GHS06,GHS08,GHS05
• Signal Word: Danger
• Hazard Statements: H301 + H311,H314,H317,H330,H335,H341,H350,H370
• Precautionary Statements: P202 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: 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
• Target Organs: Eyes,Central nervous system, Respiratory system
• Storage Class Code: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Flash Point(F): 143.6 °F - closed cup
• Flash Point(C): 62 °C - closed cup