Potassium benzoate
- русский язык имя
- английское имяPotassium benzoate
- CAS №582-25-2
- CBNumberCB9469161
- ФормулаC7H5KO2
- мольный вес160.21
- EINECS209-481-3
- номер MDLMFCD00013061
- файл Mol582-25-2.mol
химическое свойство
| Температура плавления | >300°C |
| Температура кипения | 450℃[at 101 325 Pa] |
| плотность | 1.558 g/cm3 |
| давление пара | 0Pa at 25℃ |
| температура хранения | Inert atmosphere,Room Temperature |
| растворимость | Soluble in ethanol, slightly soluble in methanol, insoluble in ether. |
| форма | Solid |
| РН | pH(50g/l, 25℃) : 7.0～9.0 |
| Растворимость в воде | 492g/L at 20℃ |
| Гидролитическая чувствительность | 0: forms stable aqueous solutions |
| Чувствительный | Hygroscopic |
| Мерк | 14,1091 |
| БРН | 3719165 |
| ИнЧИКей | XAEFZNCEHLXOMS-UHFFFAOYSA-M |
| LogP | -2.3 at 20℃ |
| Вещества, добавляемые в пищу (ранее EAFUS) | POTASSIUM BENZOATE |
| FDA 21 CFR | 177.1210 |
| Справочник по базе данных CAS | 582-25-2(CAS DataBase Reference) |
| Рейтинг продуктов питания EWG | 1 |
| FDA UNII | 763YQN2K7K |
| Система регистрации веществ EPA | Benzoic acid, potassium salt (582-25-2) |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
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вредная бумага
H315：При попадании на кожу вызывает раздражение.
H318：При попадании в глаза вызывает необратимые последствия.
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оператор предупредительных мер
P264：После работы тщательно вымыть кожу.
P280：Использовать перчатки/ средства защиты глаз/ лица.
P302+P352：ПРИ ПОПАДАНИИ НА КОЖУ: Промыть большим количеством воды.
P305+P351+P338：ПРИ ПОПАДАНИИ В ГЛАЗА: Осторожно промыть глаза водой в течение нескольких минут. Снять контактные линзы, если Вы ими пользуетесь и если это легко сделать. Продолжить промывание глаз.
P332+P313：При возникновении раздражения кожи: обратиться за медицинской помощью.
P362+P364：Снять всю загрязненную одежду и выстирать ее перед повторным использованием.
Potassium benzoate химические свойства, назначение, производство
Описание
Potassium benzoate is the potassium salt of benzoate. It is mostly used for food preservation for inhibiting the growth of mold, yeast and bacteria since it can create low pH condition after entering into the cells to suppress the anaerobic fermentation of glucose. It can also be used in the whistle in many fireworks. In analytic chemistry, it can be used as eluents for ion chromatography to increase the detector response.Химические свойства
Potassium benzoate occurs as a slightly hygroscopic, white, odorless or nearly odorless crystalline powder or granules. Aqueous solutions are slightly alkaline and have a sweetish astringent taste.Использование
Pharmaceutic aid (preservative).Методы производства
Potassium benzoate is prepared from the acid–base reaction between benzoic acid and potassium hydroxide.Фармацевтические приложения
Potassium benzoate is predominantly used as an antimicrobial preservative in a wide range of beverages, foods and some pharmaceutical formulations. Preservative efficacy increases with decreasing pH; it is most effective at pH 4.5 or below. However, at low pH undissociated benzoic acid may produce a slight though discernible taste in food products.Increasingly, potassium benzoate is used as an alternative to sodium benzoate in applications where a low sodium content is desirable.
Therapeutically, potassium benzoate has also been used in the management of hypokalemia.
Профиль безопасности
Combustible when exposed to heat or flame. When heated to decomposition it emits acrid smoke and irritating fumes.Безопасность
Potassium benzoate is widely used in food products and is generally regarded as a nontoxic and nonirritant material. However, people with a history of allergies may show allergic reactions when exposed to potassium benzoate. Ingestion is inadvisable for asthmatics. Higher concentrations of potassium benzoate have been reported to cause irritation to mucous membranes.The WHO acceptable daily intake of total benzoates including potassium benzoate, calculated as benzoic acid, has been estimated at up to 5 mg/kg of body-weight.
хранилище
Potassium benzoate is stable at room temperature under normal storage conditions. Since it is slightly hygroscopic, potassium benzoate should be stored in sealed containers. Exposure to conditions of high humidity and elevated temperatures should be avoided.Методы очистки
Potassium benzoate [582-25-2] M 160.2. Crystallise it from water (1mL/g) between 100o and 0o. [Beilstein 9 III 375, 9 IV 279.]Несовместимости
Potassium benzoate is incompatible with strong acids and strong oxidizing agents.Регуляторный статус
GRAS listed. Accepted as a food additive in Europe. Included in the Canadian List of Acceptable Non-medicinal Ingredients.использованная литература
Gjerde, Douglas T., and J. S. Fritz. "Sodium and potassium benzoate and benzoic acid as eluents for ion chromatography." Analytical Chemistry 53.14(1981):2324-2327.Zengin, N., et al. "The evaluation of the genotoxicity of two food preservatives: Sodium benzoate and potassium benzoate." Food & Chemical Toxicology An International Journal Published for the British Industrial Biological Research Association 49.4(2011):763-9.
Zeb, Alam, et al. "Grape juice preservation with benzoate and sorbate. " Advances in Food Sciences (2009).
Marietta, Michael S. "Fireworks artillery shell." US, US6912958. 2005.
Potassium benzoate запасные части и сырье
Potassium benzoate поставщик
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