可以先把structural formula转化成molecular formula,A是C2H4O2,B是C3H6O2,C是C4H8O2,D也是C3H6O2。所以排除B,D。A为40%,C为54.5%。 14、B。考察carbonyl和carboxylic acid的反应。能和Mg发生反应一定是carboxylic acid或者alcohol,但alcohol不可以被LiAlH4还原。 15、a) C。考察tertiary alcohol和ketone的鉴定。A只...
Molecular Formula: C16~18H33~37O.(C2H4O)n Molecular Structure: CAS No.: 68439-49-6 2. Specification Type Appearance (25℃) Colour (Pt-Co) Hydroxyl value mgKOH/g Cloud point(℃) (1% aque. solu.) PH (1% aque. solu.) Ceteareth A 3 White paste ≤40 141~149 —— 5.0~7.0 ...
Molecular Formula: C2H4O2 InChIKeys: InChIKey=QTBSBXVTEAMEQO-UHFFFAOYSA-N Molecular Weight: 60.05200 Exact Mass: 60.05 EC Number: 200-580-7 HScode: 29152100 Categories: Paint Solvent Characteristics PSA: 37.30000 XLogP3: 0.0909 Appearance: ...
Despite sharing the same constitutional unit formula (−C2H4O−) with PEO, polyvinyl alcohol (PVA, Scheme1) contains a pendant −OH for each repeating segment, providing multiple modification possibilities including physical crosslinking via H-bonding, chemical esterification and desirable salt solubi...
Complete and balance the following reaction: C2H4O2 + NaOH arrow Complete and balance the following reaction: C9H8O4 + NaOH arrow Complete and balance the following reaction: NaOH + KI arrow Write the molecular equation, complete ionic equation, and the...
13、C。考察percentage by mass的计算。可以先把structural formula转化成molecular formula,A是C2H4O2,B是C3H6O2,C是C4H8O2,D也是C3H6O2。所以排除B,D。A为40%,C为54.5%。 14、B。考察carbonyl和carboxylic acid的反应。能和Mg发生反应一定是carboxylic acid或者alcohol,但alcohol不可以被LiAlH4还原。
Anionic surfactants suitable for use herein include alkyl sulfates and alkyl ether sulfates of the formula ROSO3M and RO(C2H4O)xSO3M, wherein R can be a linear or branched alkyl or alkenyl chain of from about 8 to about 18 carbon atoms, x can be from 1 to 10, and M is a water-...
Molecular Formula: C12~14H25~29O.(C2H4O)n Molecular Structure: CAS No.:9002-92-0 2. Specification Type Appearance (25℃) Colour (Pt-Co) Hydroxyl value mgKOH/g Cloud point(℃) (1% aque. solu.) PH (1% aque. solu.) AEO 3 Colorless liquid ≤40 170~180 —— 5.0~7.0 ...
(i) The aforementioned Monomer A of formula (II) and Monomer K having a glycidyl group or Vinyl Monomer L having an aromatic carboxylic acid are subjected to copolymerization. (ii) The above-prepared copolymer is esterified using the Monomer L when the copolymer comprises the Monomer K. When...
wherein a+b are about 1 to about 50, or about 1 to about 30, or about 1 to about 25, and each R9 is the same or different and is a methyl or a poly(ethyleneoxide/propyleneoxide) copolymer group having the general formula: —(CH2)nO(C2H4O)C(C3H6O)dR10 (V) wherein at least...