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15512

Sigma-Aldrich

Formaldeído

meets analytical specification of USP, ≥34.5 wt. %

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Sinônimo(s):
Formalina
Fórmula linear:
HCHO
Número CAS:
50-00-0
Peso molecular:
30.03
Beilstein:
1209228
Número MDL:
MFCD00003274
Código UNSPSC:
12352114
eCl@ss:
39021101
ID de substância PubChem:
57647382
NACRES:
NA.21

densidade de vapor

1.03 (vs air)

Nível de qualidade

200

pressão de vapor

52 mmHg ( 37 °C)

temperatura de autoignição

572 °F

qualidade

meets analytical specification of USP

contém

9.0-15.0% methanol as stabilizer (GC)

concentração

≥34.5 wt. %
25-50%

Impurezas

acidic reac. substances, complies
 residual solvents, complies

resíduo de ignição

≤0.01% (as SO4)

densidade

1.09 g/mL at 25 °C (lit.)

adequação

corresponds for identity

cadeia de caracteres SMILES

[H]C([H])=O

InChI

1S/CH2O/c1-2/h1H2

chave InChI

WSFSSNUMVMOOMR-UHFFFAOYSA-N

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Descrição geral

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.

Aplicação

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.

Outras notas

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.

Palavra indicadora

Danger

Classificações de perigo

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

Órgãos-alvo

Eyes,Central nervous system, Respiratory system

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

143.6 °F

Ponto de fulgor (°C)

62 °C

Certificados de análise (COA)

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FX0415

Formaldehyde Solution

Solução de formaldeído com aprox. 37% GR for analysis stabilized with about 10% methanol ACS,Reag. Ph Eur

Sigma-Aldrich

1.04003

Solução de formaldeído com aprox. 37%

Solução de formaldeído 37%, EMPROVE® EVOLVE

SAFC

1.04002

Solução de formaldeído

Microwave synthesis of nanocrystalline metal sulfides in formaldehyde solution.
Liao X-H, et al.
Materials Science and Engineering, B, 85(1), 85-89 (2001)
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)
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)
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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