cis-1,2,3,6-Tetrahydrophthalic anhydride

cis-1,2,3,6-Tetrahydrophthalic anhydride 구조식 이미지
카스 번호:
cis-1,2,3,6-Tetrahydrophthalic anhydride
THPA;CIS-4-CYCLOHEXENE-1,2-DICARBOXYLIC ANHYDRIDE;4-CYCLOHEXENE-1,2-DICARBOXYLIC ANHYDRIDE;CIS-4-CYCLOHEXEN-1,2-DIMETHANOIC ANHYDRIDE;(3aR,7aS)-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione;CIS-THPA;cis-1,2,3,6-Tetrahyd;cis-1,2,3,6-TetrahydrophthaL;Cis-1,2,3,6-Tetrahydrophthalic;6-Tetrahydrophthalic anhydride
포뮬러 무게:
MOL 파일:

cis-1,2,3,6-Tetrahydrophthalic anhydride 속성

98 °C
끓는 점
234.6°C (rough estimate)
1.2143 (rough estimate)
증기 밀도
5.2 (vs air)
<0.01 mm Hg ( 20 °C)
1.4447 (estimate)
156 °C
저장 조건
under inert gas (nitrogen or Argon) at 2-8°C
soluble in Toluene,Benzene
물리적 상태
powder to crystal
White to Almost white
Moisture Sensitive
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)
cis-1,2,3,6-Tetrahydrophthalic anhydride(935-79-5)
1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-, (3aR,7aS)-rel- (935-79-5)
  • 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
위험 등급 8
포장분류 III
HS 번호 29173990
그림문자(GHS): GHS hazard pictogramsGHS hazard pictograms
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H317 알레르기성 피부 반응을 일으킬 수 있음 피부 과민성 물질 구분 1 경고 GHS hazard pictograms P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H318 눈에 심한 손상을 일으킴 심한 눈 손상 또는 자극성 물질 구분 1 위험 GHS hazard pictograms P280, P305+P351+P338, P310
H334 흡입 시 알레르기성 반응, 천식 또는 호흡 곤란 등을 일으킬 수 있음 호흡기 과민성 물질 구분 1 위험 GHS hazard pictograms P261, P285, P304+P341, P342+P311,P501
H412 장기적 영향에 의해 수생생물에 유해함 수생 환경유해성 물질 - 만성 구분 3 P273, P501
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P273 환경으로 배출하지 마시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P302+P352 피부에 묻으면 다량의 물로 씻으시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
NFPA 704
2 1

cis-1,2,3,6-Tetrahydrophthalic anhydride MSDS

cis-4-Cyclohexene-1,2-dicarboxylic anhydride

cis-1,2,3,6-Tetrahydrophthalic anhydride C화학적 특성, 용도, 생산


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.


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

cis-1,2,3,6-Tetrahydrophthalic anhydride 준비 용품 및 원자재


준비 용품

cis-1,2,3,6-Tetrahydrophthalic anhydride 공급 업체

글로벌( 314)공급 업체
공급자 전화 이메일 국가 제품 수 이점
Capot Chemical Co.,Ltd.
571-85586718 +8613336195806 China 29811 60
Henan DaKen Chemical CO.,LTD.
+86-371-66670886 China 18280 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 China 21975 55
AB PharmaTech,LLC
United States 989 55
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679 +86-18949832763 China 2990 55
career henan chemical co
+86-0371-86658258 China 29922 58
Hebei Guanlang Biotechnology Co., Ltd.
+86-19930503282 China 8909 58
Xiamen AmoyChem Co., Ltd
+86-592-6051114 +8618959220845 China 6387 58
Xi'an Kono chem co., Ltd.,
029-86107037 13289246953 China 2995 58
Hubei xin bonus chemical co. LTD
86-13657291602 CHINA 22973 58

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