무수프탈산
무수프탈산 · 1,2-벤젠디카르복실산무수물 · 억제제AK · 에센 · 푸탈란디온 · 1,2-벤젠디카르복실무수물 · 1,3-디옥소푸탈란 · 1,3-이소벤조푸란디온
식별자 및 물리적 특성
| CAS No. | 85-44-9 |
|---|---|
| 분자식 | C8H4O3 |
| 평균 분자량 | 148.11 g/mol |
| 단동위원소 질량 | 148.01604399 g/mol |
| SMILES | O=C1OC(=O)c2ccccc21 |
| InChIKey | LGRFSURHDFAFJT-UHFFFAOYSA-N |
| PubChem CID | 6811 |
| ChEMBL | CHEMBL1371297 |
| ChEBI | CHEBI:36605 |
| EC No. | 201-607-5 |
| DTXSID | DTXSID2021159 |
| 현지명 | 무수프탈산 |
화학 및 물리적 성질
| XLogP | 1.3 |
|---|---|
| 극성 표면적 | 43.4 |
| 수소 결합 공여자 수 | 0 |
| 수소 결합 수용자 수 | 3 |
| 회전 가능 결합 수 | 0 |
| 무거운 원자 수 | 11 |
| 형식 전하 | 0 |
| 복잡도 | 187 |
| 물질 분류 | Hazardous Air Pollutants (HAPs)CorrosivesPhthalate |
| Polymers | Plastics & Rubber -> Acid Anhydrides, Cyclic |
| SpringerMaterials Properties | Boiling point |
| 농약 | Pesticide -> EPA IRIS |
| LogP(분배 계수) | log Kow = 1.60 |
| 냄새 | MildCharacteristic, acrid odor숨이 막히는 특유의 냄새 |
| 밀도 | 1.2 at 275 °F 1.53 at 20 °C (solid) (USCG, 1999) - Denser than waterwill sink1.20 (molten)1.53 (flake)1.53 g/cm³1.53 at 68 °F1.527 @ 4°C1.53 (Flake) 1.20 (Molten)1,53 g/cm3 |
| Viscosity | 1.19 mPa.s at 132 °C1.125 mPa.s at 155 °C |
| Color/Form | White, lustrous needlesColorless needlesmonoclinic or rhombic prismsWhite needles from alcohol and benzeneWhite solid (flake) or a clear colorless liquid (molten) |
| 용해도 | Decomposes (NTP, 1992)In water, 6,000 mg/L at 25 °CIn water, 6,200 mg/L at 26 °C5,964 mg/L at room temperatureIn water, 6,200 to 6,400 mg/L at 20-25 °CIn water, 16,400 mg/L including rapid hydrolysis to phthalic acidFor more Solubility (Complete) data for PHTHALIC ANHYDRIDE (7 total), please visit the HSDB record page.6g/l(느린 분해) |
| 인화점 | 305 °F (NTP, 1992)305 °F (152 °C) (Closed cup)329 °F (Open cup)305 °F (Closed cup)152 °C c.c. |
| 끓는 점 | 563 °F at 760 mmHg (sublimes) (NTP, 1992)285.3 °CSublimes below the boiling point284 °C (sublimes)295 °C @760 [mm Hg]284 °C(lit.) |
| 녹는점 | 131-134 °C(lit.) |
| 증기 밀도 | 5.1 (vs air) |
| 증기압 | <0.01 mm Hg ( 20 °C) |
| 굴절률 | 1.4500 (estimate) |
| 저장 조건 | Store below +30°C. |
| 물리적 상태 | 片状晶体 |
| pKa(산도 계수) | 2.97[at 20 ℃] |
| 색상 | 하얀색 |
| pH | 2 (6g/l, H2O, 20℃) |
| 폭발한계 | 1.7-10.5%(V) |
| 용해도 | 6g/L(20℃) |
| 비열 | Cp(crystal): 1.08 J/(g·K), at 25℃ |
| Merck | 14,7372 |
| BRN | 118515 |
| 헨리 상수 | 6.29 at 20 °C (approximate - calculated from water solubility and vapor pressure) |
| 안정성 | 안정적인. 타기 쉬운. 강산화제, 강염기, 습기, 강산과 호환되지 않습니다. 먼지는 공기와 혼합되어 폭발성 혼합물을 형성할 수 있습니다. |
| InChI | 1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H |
| InChIKey | LGRFSURHDFAFJT-UHFFFAOYSA-N |
| SMILES | O=C1OC(=O)c2ccccc12 |
| LogP(분배 계수) | 2.07 at 20℃ |
| NIST | Phthalic anhydride(85-44-9) |
| EPA | Phthalic anhydride (85-44-9) |
화학적 성질
Phthalic Anhydride is moderately flammable, white solid (flake) or a clear, colorless, mobile liquid (molten) Characteristic, acrid, choking odor. It is very slightly soluble in H2O, soluble in alcohol, and slightly soluble in ether.
안전 및 규제
| GHS 분류 | DangerH302: Harmful if swallowed [Warning Acute toxicity, oral]P233, P260, P261, P264, P264+P265, P270, P271, P272, P280, P284, P301+P317, P302+P352, P304+P340, P305+P354+P338, P317, P319, P321, P330, P332+P317, P333+P317, P342+P316, P362+P364, P403, P403+P233, P405, and P501 (click each P-code to see the statement)This chemical does not meet GHS hazard criteria for 0.4% (14 of 3919) of reports.H302 (99.6%): Harmful if swallowed [Warning Acute toxicity, oral] |
|---|---|
| 규제 정보 | Chemical: 1,3-IsobenzofurandioneHazard Traits - DermatotoxicityRespiratory Toxicity1,3-Isobenzofurandione is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,3-Isobenzofurandione are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 10-01-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/15845Phthalic anhydride: Does not have an individual approval but may be used under an appropriate group standardThe New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.) |
| 기타 안전 정보 | IMAP assessments - 1,3-Isobenzofurandione: Human health tier II assessment |
| 운송 라벨(DOT) | Corrosive |
| 화재 위험 | Excerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:· Combustible material: may burn but does not ignite readily.Combustible. Finely dispersed particles form explosive mixtures in air. |
| 화재 가능성 | Combustible solidCombustible when exposed to heat or flame. |
| 건강 유해성 | Solid irritates skin and eyes, causing coughing and sneezing. Liquid causes severe thermal burns. (USCG, 1999)· TOXIC and/or CORROSIVEinhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. |
| 유해성 요약 |
용도
용도
프탈산을 가열하여 탈수시키면 프탈산무수물을 얻을 수 있으나, 공업적으로는 오산화바나듐 V2O5을 촉매로 써서 나프탈렌 또는 오쏘자일렌을 기체상에서 산화시켜 제조한다.
용도
페놀프탈레인, 플루오레세인, 에오신, 프탈이미드, 안트라닐산, 기타 색소, 염색 중간체, 향료 등의 합성 원료, 최근 합성 수지 공업에서 알키드 수지, 에스테르계 가소제 등의 제조에 다량 이용되며, 살충제 제조에도 이용된다. 칼륨염으로 변화한 후 이성질화하여 테레프탈산으로 한다.
용도
플라스틱의 가소제로서 쓰이고, 또한 알키드수지·색소(페놀프탈레인)·염료 등의 제조원료로 사용된다.
용도
무수프탈산은 가소제, 불포화폴리에스테르수지, 페인트 등의 주원료로 사용되고 있습니다.
개요
Phthalic anhydride is the organic compound with the formula C6H4(CO)2O. It is the anhydride of phthalic acid. This colourless solid is an important industrial chemical, especially for the large-scale production of plasticizers for plastics. Phthalic anhydride is an important chemical intermediate in the plastics industry from which are derived numerous phthalate esters that function as plasticizers in synthetic resins. Phthalic anhydride itself is used as a monomer for synthetic resins such as glyptal, the alkyd resins, and the polyester resins. Phthalic anhydride is also used as a precursor of anthraquinone, phthalein, rhodamine, phthalocyanine, fluorescein, and xanthene dyes. Phthalic anhydride is used in the synthesis of primary amines, the agricultural fungicide phaltan, and thalidomide. Other reactions with phthalic anhydride yield phenolphthalein, benzoic acid, phthalylsulfathiazole (an intestinal antimicrobial agent), and orthophthalic acid.
일반 설명
A colorless to white lustrous solid in the form of needles with a mild distinctive odor. Moderately toxic by inhalation or ingestion and a skin irritant. Melting point 64°F Flash point 305°F. Forms a corrosive solution when mixed with water. Used in the manufacture of materials such as artificial resins.
제조 및 합성 방법
제조 방법
The most important modifying component used in the manufacture of linear unsaturated polyesters is phthalic anhydride. The anhydride is generally obtained by the oxidation of o-xylene: The reaction is carried out in the vapour phase by passing a mixture of o-xylene and air over a catalyst such as vanadium pentoxide supported on silica and promoted with titanium dioxide at about 400C. The exit gases are cooled and the phthalic anhydride is collected and purified by distillation under reduced pressure.