Тримеллитовый ангидрид
- английское имяTrimellitic Anhydride
- CAS №552-30-7
- CBNumberCB5293056
- ФормулаC9H4O5
- мольный вес192.13
- EINECS209-008-0
- номер MDLMFCD00005925
- файл Mol552-30-7.mol
химическое свойство
| Температура плавления | 163-166 °C (lit.) |
| Температура кипения | 390 °C |
| плотность | 1.54 |
| плотность пара | 6.6 (vs air) |
| давление пара | <0.01 mm Hg ( 20 °C) |
| показатель преломления | 1.4717 (estimate) |
| Fp | 227 °C |
| температура хранения | Store below +30°C. |
| растворимость | 24.4g/l (decomposition) |
| пка | 3.11±0.20(Predicted) |
| форма | Flakes |
| цвет | White to off-white |
| РН | 2 (21g/l, H2O, 20℃) |
| Пределы взрываемости | 1-7%(V) |
| Растворимость в воде | DECOMPOSES |
| Чувствительный | Moisture Sensitive |
| Мерк | 14,9703 |
| БРН | 9394 |
| Пределы воздействия | ACGIH: TWA 0.0005 mg/m3; STEL 0.002 mg/m3 (Skin) NIOSH: TWA 0.005 ppm(0.04 mg/m3) |
| Стабильность | Stable. Moisture sensitive. |
| ИнЧИКей | SRPWOOOHEPICQU-UHFFFAOYSA-N |
| LogP | 0.06-0.54 at 20℃ |
| Непрямые добавки, используемые в веществах, контактирующих с пищевыми продуктами | TRIMELLITIC ANHYDRIDE |
| FDA 21 CFR | 175.300 |
| Справочник по базе данных CAS | 552-30-7(CAS DataBase Reference) |
| Рейтинг продуктов питания EWG | 2-3 |
| FDA UNII | 80T61EUU7H |
| Справочник по химии NIST | Trimellitic anhydride(552-30-7) |
| Система регистрации веществ EPA | Trimellitic anhydride (552-30-7) |
| UNSPSC Code | 12352106 |
| NACRES | NA.23 |
больше
| Коды опасности | Xn | |||||||||
| Заявления о рисках | 37-41-42/43 | |||||||||
| Заявления о безопасности | 22-26-36/37/39 | |||||||||
| OEB | D | |||||||||
| OEL | TWA: 0.005 ppm (0.04 mg/m3) Should be handled in the workplace as an extremely toxic substance. | |||||||||
| WGK Германия | 1 | |||||||||
| RTECS | DC2050000 | |||||||||
| F | 10-21 | |||||||||
| TSCA | Yes | |||||||||
| кода HS | 29173980 | |||||||||
| Банк данных об опасных веществах | 552-30-7(Hazardous Substances Data) | |||||||||
| Токсичность | LD50 orally in Rabbit: > 2730 mg/kg LD50 dermal Rabbit 23000 mg/kg | |||||||||
| NFPA 704: |
|
рисовальное письмо(GHS)
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рисовальное письмо(GHS)
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сигнальный язык
опасность
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вредная бумага
H335：Может вызывать раздражение верхних дыхательных путей.
H318：При попадании в глаза вызывает необратимые последствия.
H317：При контакте с кожей может вызывать аллергическую реакцию.
H334：При вдыхании может вызывать аллергическую реакцию (астму или затрудненное дыхание).
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оператор предупредительных мер
P261：Избегать вдыхания пыли/ дыма/ газа/ тумана/ паров/ аэрозолей.
P271：Использовать только на открытом воздухе или в хорошо вентилируемом помещении.
P280：Использовать перчатки/ средства защиты глаз/ лица.
P302+P352：ПРИ ПОПАДАНИИ НА КОЖУ: Промыть большим количеством воды.
P304+P340+P312：ПРИ ВДЫХАНИИ: Свежий воздух, покой. Обратиться за медицинской помощью при плохом самочувствии.
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.
Тримеллитовый ангидрид химические свойства, назначение, производство
Химические свойства
Trimellitic anhydride is a white powder or flakes. It is the anhydride of trimellitic acid (1,2,4-benzenetricarboxylic acid). It is soluble in water, ethanol, acetone and other general organic solvents.Использование
Trimellitic Anhydride is mainly used as raw material for polyester resin,polyimide resin,plasticizer TOTM ,and also be used for producing heatproof & insulating,adhesive,surfactant, paint,synthesize dye materials etc. Trimellitic anhydride is used as an embossing agent for vinyl flooring and as a curing agent for epoxy resins. It is also used as an intermediate for the synthesis of surface coatings chemicals, adhesives, polymers, dyes printing inks, pharmaceuticals .Определение
ChEBI: Trimellitic anhydride is a 2-benzofuran compound having oxo groups at the 1- and 3-positions and a carboxy substituent at the 5-position; the cyclic anhydride formed from the carboxy groups at the 1- and 2-positions of trimellitic acid. It has a role as an epitope, an allergen and a hapten. It is a cyclic dicarboxylic anhydride, a dioxo monocarboxylic acid and a member of 2-benzofurans. It is functionally related to a phthalic anhydride and a trimellitic acid.Общее описание
1,2,4-Benzenetricarboxylic anhydride(TA) is a hydrophilic monomer with multipurpose usage; as a curing agent for epoxy based resins and as a plasticizer for polyvinyl chloride(PVC).Реакции воздуха и воды
Sensitive to moisture. Hydrolyzes slowly. Solutions in water or alcohol may be unstable. Insoluble in water.Профиль реактивности
1,2,4-Benzenetricarboxylic anhydride reacts exothermically with water. This reaction is expected to be slow, but can become vigorous if local heating accelerates it. Reaction with water is accelerated by acids. Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases. Incompatible with strong oxidizing agents, strong acids or strong bases. .Опасность
Toxic by inhalation. Respiratory sensitization.Угроза здоровью
Trimellitic anhydride (TMAN) causes both respiratory irritation and immunologic respiratory disease.Профиль безопасности
Moderately toxic by ingestion. Has caused pulmonary edema from inhalation. Irritant to lungs and air passages. May be a powerful allergen. Typical attack consists of breathlessness, wheezing, cough, running nose, immunologcal sensitization, and asthma symptoms. When heated to decomposition it emits acrid smoke and irritating fumes. See also ANHYDRIDES.Синтез
3-Xylene is carbonylated with carbon monoxide in the presence of boron trifluoride and hydrogen fluoride to form 2,4-dimethylbenzaldehyde. 2,4-Dimethylbenzaldehyde is decomplexed from the acids, purified, and oxidized to trimellitic acid. Trimellitic acid is subjected to normal dehydration and purification steps to obtain high quality trimellitic anhydride.Возможный контакт
TMA is used to produce trimellitate plasticizers, poly (amide-imide) polymers; in paints, enamels, and coatings; polymers, polyesters; as a curing agent for epoxy and other resins; in vinyl plasticizers; agricultural chemicals; dyes and pigments; pharmaceuticals, surface active agents; modifiers, intermediates, and specialty chemicals.Канцерогенность
There are no reports of carcinogenicity associated with TMAN exposure. It was not mutagenic in bacterial assays with or without metabolic activation. No teratogenic effects or developmental toxicity was seen in rats or guinea pigs exposed to 500mg/m3 for 6 hours/day during their period of major organogenesis.Несовместимости
Dust can cause an explosion. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Reacts slowly with water, forming trimellitic acid. Compounds of the carboxyl group react with all bases, both inorganic and organic (i.e., amines) releasing substantial heat, water and a salt that may be harmful.Утилизация отходов
Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.Тримеллитовый ангидрид запасные части и сырье
Тримеллитовый ангидрид поставщик
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