methanol gets converted to formaldehyde in the liver by an enzyme called alcohol dehydrogenase. This is an oxidative reaction requiring the cofactor NAD+ which gets converted (reduced) to NADH. The reaction can also occur without alcohol dehydrogenase in microsome of a cell. In this case cytochrome P4502E1 is the enzyme and the redox agent is NADPH which gets converted (oxidized) to NADP.
Aspartame does not directly convert into formaldehyde when consumed. Instead, it breaks down into its constituent amino acids and methanol during digestion. Methanol can be metabolized into formaldehyde in the body, but the amounts produced are very small and generally considered safe. Regulatory agencies, including the FDA, have deemed aspartame safe for human consumption within established limits.
No, not the kind of alcohol that you drink. Your body metabolizes drinking alcohol (ethanol) through a series of steps, one of which is acetylaldehyde, a chemical related to formaldehyde. However, the body metabolizes methanol, another kind of alcohol, into formaldehyde.
Formalin is a saturated solution of formaldehyde, water, and typically another agent, most commonly methanol. In its typical form, formalin is 37% formaldehyde by weight (40% by volume), 6-13% methanol, and the rest water.
The main ingredient in embalming fluid, used for body preservation, is formaldehyde. Methanol and several other solvents are ingredients in embalming fluid.
Formaldehyde (HCHO) is the simplest aldehyde. It is also known as methanal (NOT methanol) or paraform.
In the body this reaction is carried out by the enzyme alcohol dehydrogenase, the same enzyme that reduces ethyl alcohol to acetaldehyde: http://en.wikipedia.org/wiki/Alcohol_dehydrogenase This is main mechanism of methanol toxicity due to the tissue damage casued by the resulting formaldehyde. On the bench you can perform a variety of dehydrogenation reactions, usually catalysed by metal salts such as copper chromite. The industrial method involves passing methanol vapour over copper heated to 300C.
The mixture of formaldehyde, methanol, and ethanol would be a solution containing these three compounds. Formaldehyde is a gas at room temperature, while methanol and ethanol are liquids, so the mixture would likely be a liquid solution. Each compound has different properties, so the resulting mixture may display a combination of these properties depending on their concentrations.
Formalin is a saturated solution of formaldehyde, water, and typically another agent, most commonly methanol. In its typical form, formalin is 37% formaldehyde by weight (40% by volume), 6-13% methanol, and the rest water.
By controlled oxidation of methanol, you can obtain formaldehyde, which is a key industrial chemical used in various applications such as plastics, resins, and textiles.
Ethylene glycol and methanol can form hydrogen bonds due to the presence of hydroxyl groups (-OH). Formaldehyde does not have a hydrogen bonding group and will not form hydrogen bonds in the liquid or solid state.
Formalin (which is what I suppose you are asking about) is another name for formaldahyde.Formaldehyde is produced industrially by the catalytic oxidation of methanol.See the "Sources and related links below"
Methanol is toxic because it is metabolized in the body to formaldehyde and formic acid, which can cause damage to tissues and organs. Ingesting methanol can lead to symptoms like nausea, vomiting, abdominal pain, and in severe cases, it can cause blindness, seizures, coma, and even death. Immediate medical attention is crucial if methanol poisoning is suspected.