Solution formaldéhyde, répond aux spécifications analytiques de USP, >=34,5 wt. %

Code: 15512-25kg-r D2-231

Non disponible en dehors du Royaume-Uni et de l'Irlande

Application

Formaldehyde solution was used to prepare the formaldehyde stock solution for the development of transparent sol-gels with entrapped sensitive and selective reage...


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Votre prix
$194.30 25KG

Non disponible en dehors du Royaume-Uni et de l'Irlande

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.

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.

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.

Packaging

5 g in poly bottle

Quality Level200
Quality Level200
InChI1S/C16H20N2O4/c1-16(2,3)22-15(21)18-13(14(19)20)8-10-9-17-12-7-5-4-6-11(10)12/h4-7,9,13,17H,8H2,1-3H3,(H,18,21)(H,19,20)/t13-/m0/s1
InChI1S/CH2O/c1-2/h1H2
assay≥99.0% (TLC)
assay≥34.5 wt. %
SMILES stringCC(C)(C)OC(=O)N[C@@H](Cc1c[nH]c2ccccc12)C(O)=O
SMILES string[H]C([H])=O
mp136 °C (dec.) (lit.)
optical activity[α]20/D −20±1°, c = 1% in DMF
InChI keyNFVNYBJCJGKVQK-ZDUSSCGKSA-N
InChI keyWSFSSNUMVMOOMR-UHFFFAOYSA-N
vapor density1.03 (vs air)
ign. residue≤0.01% (as SO4)
qualitymeets analytical specification of USP
vapor pressure52 mmHg ( 37 °C)
concentration25-50%
suitabilitycorresponds for identity
contains9.0-15.0% methanol as stabilizer (GC)
autoignition temp.572 °F
impuritiesacidic reac. substances, complies
impuritiesresidual solvents, complies
density1.09 g/mL at 25 °C (lit.)
Code
Description
Unité de vente
Prix annoncé
Qté
15512-1L-R
Unité:1L
Prix annoncé: $27.99
Source:Prix annoncé
15512-2.5L-R
Unité:2.5L
Prix annoncé: $55.68
Source:Prix annoncé
15512-5G-F
Unité:5G
Prix annoncé: $24.22
Source:Prix annoncé
15512-5L-R
Unité:5L
Prix annoncé: $101.79
Source:Prix annoncé
Cas Number50-00-0
Hazard Class8
Un Number2209
Pack GroupIII
Ce produit répond aux critères suivants: