Examples of 'aqueous formaldehyde' in a sentence
Meaning of "aqueous formaldehyde"
aqueous formaldehyde: Aqueous formaldehyde refers to a solution where formaldehyde gas is dissolved in water. This solution is commonly used in various industrial processes, especially in the manufacturing of adhesives, resins, and disinfectants
How to use "aqueous formaldehyde" in a sentence
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aqueous formaldehyde
Aqueous formaldehyde generally contains fractions of methanol and other impurities.
This slight amount of water can be introduced as aqueous formaldehyde solution.
Varying concentrations of aqueous formaldehyde solutions destroy a wide range of microorganisms.
The source of formaldehyde for use in the present process is aqueous formaldehyde.
The hydroformylation of aqueous formaldehyde was conducted to illustrate the present invention.
Dioxolane is formed by reaction of ethylene glycol with aqueous formaldehyde over an acid catalyst.
Commercially available aqueous formaldehyde usually also contain relatively small amounts of methanol.
Conventionally, paraformaldehyde is manufactured by vacuum evaporation of aqueous formaldehyde.
Commercially available aqueous formaldehyde and urea-containing solutions are preferred.
The formaldehyde-containing solution is generally an aqueous formaldehyde solution.
Accordingly, the diluted aqueous formaldehyde solution can be used as a formaldehyde source.
For example, a low temperature may be used in combination with an aqueous formaldehyde solution.
However, as pointed out above, the aqueous formaldehyde solution so removed must be disposed of.
The process of claim 6 wherein said formaldehyde source is the aqueous formaldehyde solution.
A 50 % aqueous formaldehyde solution was used as the formaldehyde source.
See also
Also useful are formaldehyde-producing reagents such as paraformaldehyde, or aqueous formaldehyde solutions such as formalin.
Thus an aqueous formaldehyde solution containing 17 % by weight of trioxane was obtained from the line d.
Then, acetic acid, methanol and triethylamine and aqueous formaldehyde were added to the reaction mixture.
The aqueous formaldehyde preferably contains 30 to 50 weight percent formaldehyde.
Examples of the formaldehyde include 37 % aqueous formaldehyde solution.
Thirty equivalents of aqueous formaldehyde is added followed by warming to 55°C.
After sacrifice, the stomach was excised and fixed in 1 % aqueous formaldehyde.
The process of claim 5 wherein the aqueous formaldehyde solution comprises approximately 50 % formaldehyde in water.
The mixture is placed under stirring and 400 ml of a 30 % aqueous formaldehyde solution are added.
Next 37 % aqueous formaldehyde is added dropwise.
The residue was dissolved in pyridine and treated with aqueous formaldehyde ( 35 % solution, Fisher ).
Conversions of the aqueous formaldehyde were far greater than 50 % and even greater than 70 %.
The process of any of claims 1-5 wherein the aqueous formaldehyde comprises appoximately 50 % formaldehyde in water.
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