cis-1,2,3,6-테트라히드로프탈산무수물
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cis-1,2,3,6-테트라히드로프탈산무수물 속성
- 녹는점
- 98 °C
- 끓는 점
- 234.6°C (rough estimate)
- 밀도
- 1.2143 (rough estimate)
- 증기 밀도
- 5.2 (vs air)
- 증기압
- <0.01 mm Hg ( 20 °C)
- 굴절률
- 1.4447 (estimate)
- 인화점
- 156 °C
- 저장 조건
- under inert gas (nitrogen or Argon) at 2-8°C
- 용해도
- soluble in Toluene,Benzene
- 물리적 상태
- powder to crystal
- 색상
- 흰색에서 거의 흰색
- 수용성
- 물과 반응
- 감도
- Moisture Sensitive
- BRN
- 82341
- 노출 한도
- ACGIH: TWA 0.01 mg/m3
OSHA: TWA 0.25 ppm(1 mg/m3)
NIOSH: IDLH 10 mg/m3; TWA 0.25 ppm(1 mg/m3)
- CAS 데이터베이스
- 935-79-5(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | Xn | ||
---|---|---|---|
위험 카페고리 넘버 | 41-42/43-52/53 | ||
안전지침서 | 22-24-26-37/39-61-52/53-42/43-41 | ||
유엔번호(UN No.) | UN 2698 8/PG 3 | ||
WGK 독일 | 3 | ||
RTECS 번호 | GW5775000 | ||
TSCA | Yes | ||
위험 등급 | 8 | ||
포장분류 | III | ||
HS 번호 | 29173990 |
cis-1,2,3,6-테트라히드로프탈산무수물 C화학적 특성, 용도, 생산
개요
Tetrahydrophthalic anhydride is an organic compound with the formula C6H8C2O3. The compound exists as two isomers, this article being focused on the more common cis isomer. It is a precursor to other compounds including the dicarboxylic acid tetrahydrophthalic acid as well the tetrahydrophthalimide, which is a precursor to the fungicide Captan. It is a white solid that is soluble in organic solvents.Tetrahydrophthalic anhydride, the cis isomer, is prepared by the Diels-Alder reaction of butadiene and maleic anhydride.
화학적 성질
Tetrahydrophthalic Anhydride (THPA) is a white crystalline powder or FLAKES. It is slightly soluble in benzene and acetone and it is also sensitive to moisture.용도
Tetrahydrophthalic Anhydride is an anhydride hardener mainly used in the fields of coatings, epoxy resin curing agents, polyester resins, adhesives, plasticizers, pesticides, etc. It is also used as a chemical intermediate for light colored alkyds.Tetrahydrophthalic Anhydride is an organic compound obtained from the reaction of Maleic Anhydride and Butadiene.
제조 방법
A flask containing 500 ml of dry benzene and 196 gm (2 moles) of maleic anhydride is heated with a pan of hot water while butadiene is introduced rapidly (0.6-0.8 liter/min) from a commercial cylinder. The solution is stirred rapidly and the heating is stopped after 3-5 min when the temperature reaches 50°C. In 15-25 min the reaction causes the temperature of the solution to reach 70-75°C. The absorption of the rapid stream of butadiene is nearly complete in 30-40 min. The addition of butadiene is continued at a slower rate for a total of 2\ hr. The solution is poured into a 1-liter beaker which is covered and kept at 0-5°C overnight. The product is collected on a large Buchner funnel and washed with 250 ml of b.p. 35-60°C petroleum ether. A second crop is obtained by diluting the filtrate with an additional 250 ml of petroleum ether. Both crops are dried to constant weight in an oven at 70-80°C to yield 281.5-294.5 gm (96- 97%, m.p. 99-102°C). Recrystallization from ligroin or ether raises the melting point to 103-104°C.![Preparation of Tetrahydrophthalic Anhydride](https://www.chemicalbook.com/NewsImg/2020-02-24/20202241834415364.png)
cis-1,2,3,6-테트라히드로프탈산무수물 준비 용품 및 원자재
원자재
준비 용품
4-Methylphthalic acid
캡탄
1,2,3,4-Butanetetracarboxylic acid
디-(2-에틸헥실)4,5-에폭시테트라히드로프탈레이트
N-Hydroxymethyl-3,4,5,6-tetrahydrophthalimide
CIS-4-CYCLOHEXENE-1,2-DICARBOXYLIC ACID
시스-헥사히드로프탈 무수물
1H-Isoindole-1,3(2H)-dione, 3a,4,7,7a-tetrahydro-2-(2-hydroxyethyl)-, (3aR,7aS)-rel-
디메틸사이클로헥스-3-엔-1,6-디카르복실레이트
cis-1,2,3,6-테트라히드로프탈산무수물 공급 업체
글로벌( 329)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
Puyang Huicheng Electronic Materials Co., Ltd. | +86-0393-+86-0393-8910800 +8615839383373 |
info@huichengchem.com | China | 524 | 58 |
Hebei Guanlang Biotechnology Co,.LTD | +8619930503252 |
daisy@crovellbio.com | China | 5828 | 58 |
Hebei Fengjia New Material Co., Ltd | +86-0311-87836622 +86-17333973358 |
sales06@hbduling.cn | China | 8079 | 58 |
Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29798 | 60 |
Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 |
info@dakenam.com | China | 16914 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21668 | 55 |
AB PharmaTech,LLC | 323-480-4688 |
United States | 989 | 55 | |
Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +86-18949832763 |
info@tnjchem.com | China | 2989 | 55 |
career henan chemical co | +86-0371-86658258 +8613203830695 |
sales@coreychem.com | China | 29894 | 58 |
Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 |
alice@crovellbio.com | China | 8822 | 58 |
cis-1,2,3,6-테트라히드로프탈산무수물 관련 검색:
숙신산무수물 말레산 무수물 디 -Tert- 부틸 디 카보네이트 무수프탈산 3,4-다이하이드로-2,5,7,8-테트라메틸-2-(4,8,12-트라이메틸트 라이데실)-2H-벤조피란-6-올 무수초산 시클로헥센 나딕 메틸 무수물
Glutaric anhydride
3,4,5,6-Tetrahydrophthalic anhydride
Methyl tetrahydrophthalic anhydride
Pralmorelin
5-Chlorovaleric acid
Diphenolic acid
Erythromycin Estolate
CIS-1,2-CYCLOHEXANEDICARBOXYLIC ANHYDRIDE
cis-Hexahydrophthalic acid
Dimethyl cyclohexane-1,2-dicarboxylate