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핵산산

핵산산
핵산산 구조식 이미지
카스 번호:
142-62-1
한글명:
핵산산
동의어(한글):
n-카프론산;카프로인산;핵산산;카프로산;카프론산;헥산오익산;부틸아세틱산;N-헥산오익산;펜티포름산;부틸아세트산
상품명:
Hexanoic acid
동의어(영문):
C6;NA-1706;acid c-6;FEMA 2559;N-CAPROATE;hexacid698;Hexansαure;HEXOIC ACID;Capronsαure;Hexacid 698
CBNumber:
CB3224164
분자식:
C6H12O2
포뮬러 무게:
116.16
MOL 파일:
142-62-1.mol

핵산산 속성

녹는점
−4 °C(lit.)
끓는 점
202-203 °C(lit.)
밀도
0.927 g/mL at 25 °C(lit.)
증기 밀도
4 (vs air)
증기압
0.18 mm Hg ( 20 °C)
굴절률
n20/D 1.4161(lit.)
FEMA
2559 | HEXANOIC ACID
인화점
220 °F
저장 조건
Store below +30°C.
용해도
water: slightly soluble1.082g/100g(lit.)
산도 계수 (pKa)
4.85(at 25℃)
물리적 상태
Liquid
Specific Gravity
0.929 (20/4℃)
색상
Clear colorless to light yellow
수소이온지수(pH)
4 (1g/l, H2O, 20℃)
수용성
1.1 g/100 mL (20 ºC)
Merck
14,1759
JECFA Number
93
BRN
773837
안정성
Stable. Incompatible with bases, reducing agents and oxidizing agents. Flammable.
InChIKey
FUZZWVXGSFPDMH-UHFFFAOYSA-N
CAS 데이터베이스
142-62-1(CAS DataBase Reference)
NIST
Hexanoic acid(142-62-1)
EPA
Hexanoic acid(142-62-1)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 C,Xi
위험 카페고리 넘버 34-21-20/21/22
안전지침서 26-36/37/39-45-25
유엔번호(UN No.) UN 2829 8/PG 3
WGK 독일 1
RTECS 번호 MO5250000
F 고인화성물질 13
자연 발화 온도 380 °C
위험 참고 사항 Irritant
TSCA Yes
위험 등급 8
포장분류 III
HS 번호 29159000
유해 물질 데이터 142-62-1(Hazardous Substances Data)
독성 LD50 orally in rats: 3.0 g/kg (Smyth, Carpenter)
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H290 금속을 부식시킬 수 있음 금속 부식성물질 구분 1 경고 P234, P390, P404
H302 삼키면 유해함 급성 독성 물질 - 경구 구분 4 경고 P264, P270, P301+P312, P330, P501
H311 피부와 접촉하면 유독함 급성 독성 물질 - 경피 구분 3 위험 P280, P302+P352, P312, P322, P361,P363, P405, P501
H314 피부에 심한 화상과 눈에 손상을 일으킴 피부부식성 또는 자극성물질 구분 1A, B, C 위험 P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H318 눈에 심한 손상을 일으킴 심한 눈 손상 또는 자극성 물질 구분 1 위험 P280, P305+P351+P338, P310
H331 흡입하면 유독함 급성 독성 물질 흡입 구분 3 위험 P261, P271, P304+P340, P311, P321,P403+P233, P405, P501
예방조치문구:
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P301+P330+P331 삼켰다면 입을 씻어내시오. 토하게 하려 하지 마시오.
P303+P361+P353 피부(또는 머리카락)에 묻으면 오염된 모든 의복은 벗거나 제거하시오 피부를 물로 씻으시오/샤워하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P405 밀봉하여 저장하시오.

핵산산 C화학적 특성, 용도, 생산

개요

Hexanoic acid (caproic acid), is the carboxylic acid derived from hexane with the general formula C5H11COOH. It is a colorless oily liquid with an odor that is fatty, cheesy, waxy, and like that of goats or other barnyard animals. It is a fatty acid found naturally in various animal fats and oils, and is one of the chemicals that give the decomposing fleshy seed coat of the ginkgo its characteristic unpleasant odor. The primary use of hexanoic acid is in the manufacture of its esters for artificial flavors, and in the manufacture of hexyl derivatives, such as hexylphenols.
The salts and esters of this acid are known as hexanoates or caproates.
Two other acids are named after goats: caprylic (C8) and capric (C10). Along with hexanoic acid, these total 15% in goat milk fat. Caproic, caprylic, and capric acids (capric is a crystal- or waxlike substance, whereas the other two are mobile liquids) are not only used for the formation of esters, but also commonly used "neat" in: butter, milk, cream, strawberry, bread, beer, nut, and other flavors.

화학적 성질

Hexanoic acid has an unpleasant odor reminiscent of copra oil and it exhibits an acrid taste. Hexanoic acid may be prepared by fractionation of the volatile fatty acids of coconut oil.

화학적 성질

Hexanoic acid has a sickening, sweaty, rancid, sour, sharp, pungent, cheesy, fatty, unpleasant odor reminiscent of copra oil. It exhibits an acrid taste

화학적 성질

colourless liquid

출처

A secondary product of butyric fermentation; reported found in the essential oils of lavender, camphor, palmarosa, lemongrass and Juniperus phoenicea; in a few fruital aromas: apple, currant and strawberry; also identified among the constituents of petitgrain lime oil. Also reported found in apple, lemon and orange juice, berries, guava, raisin, papaya, peach, pineapple, cooked potato, pepper, breads, cheeses, butter, milk, fish, meats, hop oil, beer, whiskies, rum, brandy, grape wines, coffee, cocoa, tea, filberts, pecans, peanut oil, coconut meat and oil, soybeans, passion fruit, beans, mushrooms, rice, licorice, corn oil, malt, loquat, sherry, clams, mussels, scallops and other sources

용도

Intermediates of Liquid Crystals

용도

manufacture of esters for artificial flavors, and of hexyl derivatives, especially hexylphenols, hexylresorcinol, etc.

정의

ChEBI: A C6, straight-chain saturated fatty acid.

제조 방법

By fractionation of the volatile fatty acids of coconut oil

정의

An oily carboxylic acid found (as glycerides) in cow’s milk and some vegetable oils.

Aroma threshold values

Detection: 93 ppb to 10 ppm

일반 설명

A white crystalline solid or colorless to light yellow solution with an unpleasant odor. Insoluble to slightly soluble in water and less dense than water. Contact may severely irritate skin, eyes and mucous membranes. May be toxic by ingestion, inhalation and skin absorption. Used to make perfumes.

공기와 물의 반응

Slightly water soluble.

반응 프로필

Hexanoic acid is a carboxylic acid. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry. Even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in Hexanoic acid to corrode or dissolve iron, steel, and aluminum parts and containers. Carboxylic acids, like other acids, react with cyanide salts to generate gaseous hydrogen cyanide. The reaction is slower for dry, solid carboxylic acids. Insoluble carboxylic acids react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. Flammable and/or toxic gases and heat are generated by the reaction of carboxylic acids with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides. Carboxylic acids, especially in aqueous solution, also react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. Their reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. Like other organic compounds, carboxylic acids can be oxidized by strong oxidizing agents and reduced by strong reducing agents. These reactions generate heat. A wide variety of products is possible. Like other acids, carboxylic acids may initiate polymerization reactions; like other acids, they often catalyze (increase the rate of) chemical reactions. Hexanoic acid reacts with bases, oxidizing agents and reducing agents.

위험도

Strong irritant to tissue.

건강위험

Harmful if swallowed, inhaled, or absorbed through skin. Material is extremely destructive to tissue of mucous membranes and upper respiratory tract, eyes and skin. Inhalation may be fatal as a result of spasm, inflammation and edema of the larynx and bronchia, chemical pneumonitis and pulmonary edema. Symptoms of exposure may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea and vomiting.

화재위험

Special Hazards of Combustion Products: Irritating vapor may be generated.

Purification Methods

Dry the acid with MgSO4 and fractionally distil it from CaSO4. [Beilstein 2 IV 917.]

핵산산 준비 용품 및 원자재

원자재

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