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Merck

15512

Formaldéhyde solution

≥34.5 wt. in H₂O, solution, meets analytical specification of USP, contains 9-15% methanol as stabilizer (to prevent polymerization)

Synonyme(s) :

Formol

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A propos de cet article

Formule linéaire :
HCHO
Numéro CAS:
50-00-0
Poids moléculaire :
30.03
UNSPSC Code:
12352114
eCl@ss:
39021101
PubChem Substance ID:
57647382
NACRES:
NA.21
Beilstein/REAXYS Number:
1209228
MDL number:
MFCD00003274

Principaux documents

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Nom du produit

Formaldéhyde solution, meets analytical specification of USP, ≥34.5 wt. %

SMILES string

[H]C([H])=O

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

vapor density

1.03 (vs air)

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

Quality Level

200

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Catégories apparentées

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.

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Danger

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

Classe de stockage

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

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Certificats d'analyse (COA)

Lot/Batch Number
SDBB5319
SDBB4419
SDBB3964
SDBB3965
STBL1232

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Consulter la Bibliothèque de documents

Lanthanide triflates as water-tolerant Lewis acids. Activation of commercial formaldehyde solution and use in the aldol reaction of silyl enol ethers with aldehydes in aqueous media.
Kobayashi S and Hachiya I.
The Journal of Organic Chemistry, 59(13), 3590-3596 (1994)
Lanthanide Trifluoromethanesulfonates as Stable Lewis Acids in Aqueous Media. Yb (OTf)3 Catalyzed Hydroxymethylation Reaction of Silyl Enol Ethers with Commercial Formaldehyde Solution.
Kobayashi S.
Chemistry Letters (Jpn), 12, 2187-2190 (1991)
Microwave synthesis of nanocrystalline metal sulfides in formaldehyde solution.
Liao X-H, et al.
Materials Science and Engineering, B, 85(1), 85-89 (2001)
Opas Bunkoed et al.
Analytica chimica acta, 659(1-2), 251-257 (2010-01-28)
We report the development of transparent sol-gels with entrapped sensitive and selective reagents for the detection of formaldehyde. The sampling method is based on the adsorption of formaldehyde from the air and reaction with beta-diketones (for example acetylacetone) in a
Cindy S Ma et al.
The Journal of experimental medicine, 205(7), 1551-1557 (2008-07-02)
Hyper-immunoglobulin E syndrome (HIES) is a primary immune deficiency characterized by abnormal and devastating susceptibility to a narrow spectrum of infections, most commonly Staphylococcus aureus and Candida albicans. Recent investigations have identified mutations in STAT3 in the majority of HIES
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