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Гидроксиэтилцеллюлоза
Несколько имен
Фосфоновая кислота;
Фосфоновая кислота;
Фосфонат водорода;
Фосфор(+3) тригидридный катион тригидроксид;
Ортофосфор;
Ортофосфорная кислота;
Ортофосфорная кислота
Номер CAS 9004-62-0
ЕС №
Номер МФ C29H52O21
МВ № 154.25100
Гидроксиэтилцеллюлоза обычно используется в качестве загустителя, защитного агента, адгезива, стабилизатора, добавки для приготовления эмульсий, желе, мазей, лосьонов, средств для промывания глаз, суппозиториев и таблеток, а также гидрофильного геля, каркасных материалов, приготовления препаратов пролонгированного действия каркасного типа и в качестве стабилизатора в пищевых продуктах.
Преимущество гидроксиэтилцеллюлозы CAS № 9004-62-0
Растворим в холодной и горячей воде
Без запаха, без вкуса и легко течет
Обладает загущающими, суспензирующими, адгезионными, эмульгирующими, диспергирующими, влагоудерживающими и другими свойствами
Имена и идентификаторы
| Имя | Гетастарх |
| Синонимы | HEC bl15 ah15 Натросол cellosize Гетастарх Natrosol LR Natrosol L 250 Natrosol 240JR Natrosol 250 M Natrosol 250 H Natrosol 250 HHR aw15(polysaccharide) aw15[polysaccharide] Гидроксиэтилцеллюлоза гидроксиэтилцеллюлоза 2-hydroxyethylcelluloseether Hydroxyethyl ether cellulose Эфир гидроксиэтилцеллюлозы The blood coHydroxyethyl cellulose etherngeals the appearance board 5-[6-[[3,4-dihydroxy-6-(hydroxymethyl)-5-methoxyoxan-2-yl]oxymethyl]-3,4-dihydroxy-5-[4-hydroxy-3-(2-hydroxyethoxy)-6-(hydroxymethyl)-5-methoxyoxan-2-yl]oxyoxan-2-yl]oxy-6-(hydroxymethyl)-2-methyloxane-3,4-diol |
| CAS | 9004-62-0 |
| EINECS | 618-387-5 |
9004-62-0 – Физико-химические свойства
| Молекулярная формула | C29H52O21 |
| Плотность | 0.75 г/м при 25°C (лит.) |
| Температура плавления | 288-290 ° C (разл.) |
| Растворимость воды | почти прозрачность |
| Растворимость | H2O: ≤5wt. % at20°C |
| Внешний вид | порошок |
| Цвет | Светло-коричневый порошок |
| запах | непахнущий |
| Merck | 14,4673 |
| PH | pH(20г/л,25℃): 5.0～8.0 |
| Условия хранения | 2-8 ° C |
| Стабильность | Стабильная. Несовместимо с сильными окислителями, хлоридами кислот, ангидридами кислот |
| чувствительный | Легко впитывает влагу |
| MDL | MFCD00072770 |
| Физические и химические свойства | This product is white to light yellow fibrous or powdery solid, non-toxic, tasteless, soluble in water. Insoluble in general organic solvents. It has the properties of thickening, suspension, adhesion, emulsification, dispersion, and moisture retention. Solutions with different viscosity ranges can be prepared. It has exceptionally good salt solubility to the electrolyte. |
| Используйте | Used as surfactant, latex thickener, colloid protective agent, oil fracturing fluid and polystyrene and polyvinyl chloride dispersant |
9004-62-0 – Риск и безопасность
| Символы опасности | Т – Токсичный |
| Коды рисков | R23/24/25 – Токсично при вдыхании, попадании на кожу и проглатывании. R36/37/38 – Раздражает глаза, дыхательную систему и кожу. |
| Описание безопасности | S26 – При попадании в глаза немедленно промыть большим количеством воды и обратиться к врачу. S36 – Носите подходящую защитную одежду. S45 – В случае несчастного случая или плохого самочувствия немедленно обратитесь к врачу (по возможности покажите этикетку). S24/25 – Избегать контакта с кожей и глазами. S22 – Не вдыхайте пыль. |
| WGK Германия | 3 |
| RTECS | FJ5958000 |
| F-КОДЫ МАРКИ FLUKA | 3 |
| Код ТН ВЭД | 39123980 |
| Токсичность | LDLo intravenous in women: 5100mg/kg/6D- |
Справочная информация
| особенность | Hydroxyethyl Cellulose is a white or yellowish odorless, tasteless, flowable powder. Both soluble in cold water-soluble hot water, under normal circumstances in most organic solvents insoluble. The viscosity change is small in the pH range of 2-12, but the viscosity decreases beyond this range. |
| Используйте | Hydroxyethyl Cellulose is generally used as thickener, protective agent, adhesive, stabilizer and preparation of emulsion, gel, ointment, lotion, eye clearing agent, suppository and tablet additives, also used as hydrophilic gel, matrix material, preparation of matrix type sustained-release preparation, can also be used for food as a stabilizer and so on. This product is used for fracturing oil water-based gel fracturing fluid, polystyrene and polyvinyl chloride polymerization dispersant. Can also be used as paint industry latex thickener, electronic industry Humidity sensitive resistance, construction cement inhibitor and moisture retention agent. Glazing and toothpaste adhesives for the ceramic industry. It is also widely used in printing and dyeing, textile, paper making, medicine, health, food, cigarettes, pesticides and fire extinguishing agents. as a thickener and fluid loss reducer for water-based drilling fluid and completion fluid, the thickening effect is obvious in brine drilling fluid. It can also be used as a fluid loss additive for oil well cement. The gel may be crosslinked with a polyvalent metal ion. It is used as surfactant, colloid protective agent, emulsion stabilizer of vinyl chloride, vinyl acetate and other emulsions, and adhesion promoter, dispersant, dispersion stabilizer and the like of latex. Widely used in coating, fiber, dyeing, papermaking, cosmetics, pharmaceuticals, pesticides and so on. There are also many uses in the oil extraction and machinery industry. used as surfactant, latex thickener, colloid protective agent, petroleum fracturing fluid, polystyrene and polyvinyl chloride dispersant, etc. hydroxyethylcellulose has surface activity, thickening and, suspension, adhesion, emulsification, film formation, dispersion, water retention and protection. |
| thickener and binder | Hydroxyethyl Cellulose is a commonly used cellulose ether organic water-based ink thickener, belonging to water-soluble non-ionic compounds, it has good thickening ability for water, can be degraded by oxygen, acid and enzyme, and can be crosslinked by Cu2 under alkaline conditions. It is stable to heat, does not appear gelation during heating, does not precipitate under acidic conditions, has good film-forming property, and its aqueous solution can be made into a transparent film, it can be formed by the action of alkaline cellulose and ethylene oxide, and has the properties of thickening, emulsification, adhesion, suspension, film formation, moisture retention and protective colloid. The function of the thickener in the aqueous ink is to thicken. The viscosity of the ink added with the thickener increases, which can improve the physical and chemical stability of the ink. Due to the increase of viscosity, the rheological property of the ink can be controlled during printing, increases the storage stability of aqueous inks. The thickener is a cellulose-based substance and/or a polyvinyl alcohol-based substance. The cellulosic substance may be one or more of methyl cellulose, ethyl cellulose, hydroxymethyl cellulose, carboxymethyl cellulose, hydroxypropyl cellulose, Hydroxyethyl Cellulose and hydroxypropyl methyl cellulose; the polyvinyl alcohol-based material may be one or more of polyethylene 400, 600, 800, 1000, 1600, 2000, 4000, 6000. |
| диапазон использования | according to national standards, the recommended dosage is 1‰ to 3. |
| способ производства | alkali cellulose is a kind of natural polymer, each fiber base ring contains three hydroxyl groups, the most active hydroxyl groups react to produce Hydroxyethyl Cellulose. The raw cotton linter or refined meal pulp was soaked in 30% liquid alkali, and extracted and pressed after half an hour. The crushing was carried out by pressing to 1:2.8 of the alkaline water-containing cases. The crushed alkali cellulose is put into the reaction kettle, closed, vacuumed, filled with nitrogen, and the air inside the kettle is replaced by repeated vacuum and nitrogen filling. The pre-cooled ethylene oxide liquid was pressed into the reaction vessel, and the reaction vessel jacket was introduced into the cooling water to control the reaction at about 25 ℃ for 2H to obtain the crude Hydroxyethyl Cellulose. The crude product was washed with alcohol, neutralized to pH4-6 with acetic acid, and aged with glyoxal. It was then washed with water, centrifuged, dried, and pulverized to give Hydroxyethyl Cellulose. Raw material consumption (kg/t) cotton linter or low meal pulp 730-780 liquid alkali (30%) 2400 ethylene oxide 900 alcohol (95%) 4500 acetic acid 240 glyoxal (40%) 100-300 The raw material cotton linter or refined meal pulp is soaked in 30% alkali solution, taken out after half an hour, and pressed. The mixture was pressed to a ratio of alkaline water of 1: 2.8, and transferred to a pulverizing apparatus for pulverization. The crushed alkali fiber was put into the reaction kettle. Sealed vacuum, nitrogen. After the air in the kettle was replaced with nitrogen gas, the pre-cooled ethylene oxide liquid was forced into the autoclave. The reaction was controlled under cooling at 25 °c for 2 h to obtain crude Hydroxyethyl Cellulose. The crude product was washed with alcohol and adjusted to pH 4-6 by adding acetic acid. Then glyoxal cross-linking aging, washing with water quickly, finally centrifugal drying, grinding, to obtain low salt Hydroxyethyl Cellulose. |
| температура самовозгорания | 725°Ф. |
Фабрика и отгрузка
