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- Weak acids ionize partly ( <1% ionize) in water to give hydrogen ion. 弱酸在水中部份電離(<1%25電離)，放出氫離子。
- Weak alkalis ionize partly ( <1% ionize) in water to give hydroxide ion. 弱堿在水中部份電離，放出氫氧離子。
- Weak acids(e. g.CH3COOH)are only partly dissociated because H3O+ is a stronger acid than the free acids. 弱酸（例如CH3COOH）在水中部分解離，因為H3O+是比自由酸根強的酸根。
- Air,Compressed ari, Water, hotn water, weak acid, etc. 空氣、壓縮空氣、水、海水、熱水、弱酸等。
- 3. Weak alkalis ionize partly ( <1% ionize) in water to give hydroxide ion. 弱堿在水中部份電離，放出氫氧離子。
- Amino acids are weak acids and weak bases, therefore, they are excellent buffering agents. 氨基酸是弱酸和弱堿，因此，它們是很好的緩沖劑。
- Counter etch A weak acid solution, e. G. Acetic acid, used to clean a plate chemically before coating. 清洗腐蝕劑化學(xué)性的版面清洗,在涂布樂(lè )膜前使用。它是一種弱酸溶液,如醋酸等。
- Counter etch: A weak acid solution ,e.g. acetic acid , used to clean a plate chemically before coating . 清洗腐蝕劑:化學(xué)性的版面清洗 ，在涂布樂(lè )膜前使用。它是一種弱酸溶液，如醋酸等。
- They involve a chemical equilibrium between a weak acid and its salt or a weak base and its salt. 它包含弱酸及弱酸鹽與弱堿和弱堿鹽之間的化學(xué)平衡。
- Apply to water, water, steam, all kinds of oils, solvents, weak acid, alkali, ethanol, and other media. 適用于水、海水、蒸汽、各種油類(lèi)、溶劑、弱酸、堿、乙醇等介質(zhì)。
- The total selectivity of methylphenyl oxalate (MPO) and DPO was up to 99.2% over TS?1, which was a weak acid. 以弱酸TS-1分子篩為催化劑;MPO和DPO總選擇性為99.;2%25。
- The structure and properties of macroporous strong base - weak acid amphoteric resin were studied by using IR and DTA. 利用紅外光譜、差熱分析對大孔強堿弱酸兩性樹(shù)脂的結構與性能作些探討。
- The improved synthetic process of the weak acid dyestuff, Blue BS was described in this paper. 本文重點(diǎn)介紹了弱酸蘭BS染料合成改進(jìn)工藝。
- The Na salts of weak acids （eg, barbiturates, salicylates） dissolve faster than their corresponding free acids regardless of the pH of the medium. 不管介質(zhì)的pH是多少，弱酸的鈉鹽（如巴比妥酸鹽，水楊酸鹽）比其相應的游離酸溶解得快。
- The dyeing process and the performance of weak acid dyes using additive WMJ for wool at low temperatures are studied. 文章探討了弱酸性染料使用低溫添加劑WMJ對羊毛進(jìn)行染色的工藝及染色性能。
- The Na salts of weak acids （eg, barbiturates, salicylates） di olve faster than their corre onding free acids regardle of the pH of the medium. 不管介質(zhì)的pH是多少，弱酸的鈉鹽（如巴比妥酸鹽，水楊酸鹽）比其相應的游離酸溶解得快。
- Weak acid, so that it can work with any insecticides, fungicides, herbicides and so on a mix of mutual synergy. 弱酸性，可使其能與任何殺蟲(chóng)劑、殺菌劑、除草劑等混用，相互增效。
- The emulsion of MFX is stable to dilute salt solutions,weak acid or alkali and hard water. 該產(chǎn)品在弱酸、堿、鹽溶液中穩定,并能耐一般硬水。
- The spirit is willing but the flesh is weak. 心有余而力不足。
- When the weak acid is given orally, the concentration gradient for un-ionized drug between stomach and plasma tends to be large, favoring diffusion through the gastric mucosa. 當這種弱酸性藥物經(jīng)口服給藥時(shí)，胃與血漿之間的非解離型藥物濃度梯度很大，從而有利于透過(guò)胃粘膜擴散。
