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CH 3 CH(OH)CH 2 CHO → CH 3 CH=CHCHO + H 2 O. Hydrogenation of 3-hydroxybutanal gives 1,3-butanediol: CH 3 CH(OH)CH 2 CHO + H 2 → CH 3 CH(OH)CH 2 CH 2 OH. This diol is a precursor to 1,3-butadiene, precursor to diverse polymers. Polymerization of 3-hydroxybutanal is also spontaneous, but can be stopped with the addition of water. Aldol has ...
Folding or knock back may also be omitted: after sufficient bulk fermentation time, the dough may go straight to make-up. [27] Make-up [28] [note 3] Dough in the make up process. Dividing: This is also called scaling or portioning. The bulk dough is divided to smaller, final weights. This step is used when making more than one loaf of bread, or ...
Can automatically draw rings and other structures - has all standard amino acids and nucleic acids in a built-in library; Retrieval of structures from a network database based on CAS number, formula, or name; Retrieval of information on a molecule based on a drawing; Symbols such as partial charge and radicals
When necessary, the position of the hydroxyl group is indicated by a number between the alkane name and the -ol: propan-1-ol for CH 3 CH 2 CH 2 OH, propan-2-ol for CH 3 CH(OH)CH 3. If a higher priority group is present (such as an aldehyde , ketone , or carboxylic acid ), then the prefix hydroxy- is used, [ 19 ] e.g., as in 1-hydroxy-2 ...
11.2: 3.5: 3500 fresh yeast: 4%: 0.08: 1.28: 0.4: ... All ingredient weights are divided by the flour weight to obtain a ratio, then the ratio is multiplied by 100% ...
Typically 60 ml (1 ⁄ 4 cup) water at 40–45 °C (105–115 °F) and 2 g (1 ⁄ 2 teaspoon) of sugar are used, [5] or expressed differently, a sugar weight of about 3.5% of the water's weight. While this sugar may be sucrose or table sugar, instead it may be glucose or maltose .
[2]: 4 [4] It is predominantly used as a precursor to trimethylolethane (CH 3 C(CH 2 OH) 3) through a condensation reaction with formaldehyde. This triol is an important intermediate in the production of alkyd resins. It is used in the synthesis of several common aroma compounds (cyclamen aldehyde, helional, lilial). [2]
The compound is closely related and convertible to the industrially significant derivatives paraformaldehyde ((CH 2 O) n), formaldehyde (H 2 C=O), and 1,3,5-trioxane ((CH 2 O) 3). [3] Methanediol is a product of the hydration of formaldehyde. The equilibrium constant for hydration is estimated to be 10 3, [4] CH 2 (OH) 2 predominates in dilute ...