II. pH of monoprotic dilute weak acids and bases For weak monoprotic acids, an equilibrium is established between the acid and products of dissociation: HA+H2O⇌H3O++A− The equilibrium constant is defined as: construct a system of equations using material balance and charge balance: ...
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酸性L-G培养基基础 Acid L-G Medium Base HB6251 250g 价格￥65 起批量≥1瓶 最小起订1瓶 供货总量999瓶 发货地址山东省青岛市 建议售价￥65/瓶 更新日期2024年11月27日 产品规格250g 即时洽谈立即询价查看联系方式 收藏产品发送留言 VIP8年 青岛高科技工业园海博生物技术有限公司高新技术企业 ...
Weak-acid preservatives: modeling microbial inhibition and response. Examines the modelling and microbial inhibition and response of weak-acid preservatives. Efficacy of preservatives at low pH values; Diffusion of non-disso... Lambert,J R.,Stratford,... - 《Journal of Applied Microbiology》 被引量...
Support for ACID transactions across a variety of data in Oracle’s converged database, with programming in language of choice and built-in transactional messaging/events. Unified observability Metrics and logs are collected and analyzed at every tier—app, mid, and data—all unified for the devel...
Trimellitic anhydride is a crystalline solid. It is the anhydride of trimellitic acid (1,2,4-benzenetricarboxylic acid). [Melting point ] 163-166 °C (lit.) [Boiling point ] 390 °C [density ] 1.54 [vapor density ] 6.6 (vs air) ...
A set of 543 ionizable commercial organic compounds with various acid/base functionalities and experimental octanol-water partitioning coefficients (log K<sub>ow</sub>) were obtained from the Canadian Domestic Substances List. Corresponding pH-dependent octanol-water distribution coefficients (log D<sub...
Phthalic anhydride is used in plasticizers; in the manufacture of phthaleins; benzoic acid; alkyd and polyester resins; synthetic indigo; and phthalic acid;which is used as a plasticizer for vinyl resins. To a lesser extent, it is used in the production of alizarin, dye, anthranilic acid; ...
NameAcetic acid glacial CAS64-19-7 EINECS(EC#)232-236-7 Molecular FormulaC2H4O2 MDL NumberMFCD00011354 Molecular Weight60.05 MOL File64-19-7.mol show more Chemical Properties Description Acetic acid is a colourless liquid or crystal with a sour, vinegar-like odour and is one of the simples...
acid is dissolved in methanol, add sulfuric acid, heat with stirring, the reaction time is 3h,90-100℃, cool to below 30 ℃,take oil ,wash with sodium carbonate solution to pH8 above, and then wash 1 time with water. Vacuum distillation, collect 95-110 ℃ (1.33-2.0kPa) distillate, ...