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벤즈알데하이드

벤즈알데하이드
벤즈알데하이드 구조식 이미지
카스 번호:
100-52-7
한글명:
벤즈알데하이드
동의어(한글):
벤즈알데히드;벤젠메틸알;벤젠카르보날;벤젠카르복시알데히드BENZOICALDEHYDE;인조아몬드기름;페닐메탄알;벤즈알데하이드;인공아몬드기름;인공아몬드기름;벤젠카르보날;페닐메탄알;벤젠메틸알;인조아몬드기름;벤젠;벤젠카르복스알데히드;벤조산 알데히드;벤즈알데히드 FFC;인공 아몬드유;페닐메타날;페닐포름알데히드
상품명:
Benzaldehyde
동의어(영문):
Benzaldehyd;BENZYL ALDEHYDE;BENZOIC ALDEHYDE;Benzyaldehyde;phenylmethanal;BALD;Benzaldehy;Benaldehyde;Artificial Almond Oil;BENZALDEHYDE EXTRA PURE
CBNumber:
CB6852588
분자식:
C7H6O
포뮬러 무게:
106.12
MOL 파일:
100-52-7.mol

벤즈알데하이드 속성

녹는점
?26 °C (lit.)
끓는 점
178-179 °C (lit.)
밀도
1.044 g/cm3 at 20 °C (lit.)
증기 밀도
3.7 (vs air)
증기압
4 mm Hg ( 45 °C)
FEMA
2127 | BENZALDEHYDE
굴절률
n20/D 1.545(lit.)
인화점
145 °F
저장 조건
Store below +30°C.
용해도
H2O: soluble100mg/mL
산도 계수 (pKa)
14.90(at 25℃)
물리적 상태
neat
색상
Pale yellow
pH 범위
5.9
냄새
Like almonds.
수소이온지수(pH)
5.9 (1g/l, H2O)
폭발한계
1.4-8.5%(V)
수용성
<0.01 g/100 mL at 19.5 ºC
어는점
-56℃
감도
Air Sensitive
JECFA Number
22
Merck
14,1058
BRN
471223
안정성
Stable. Combustible. Incompatible with strong oxidizing agents, strong acids, reducing agents, steam. Air, light and moisture-sensitive.
InChIKey
HUMNYLRZRPPJDN-UHFFFAOYSA-N
CAS 데이터베이스
100-52-7(CAS DataBase Reference)
NIST
Benzaldehyde(100-52-7)
EPA
Benzaldehyde (100-52-7)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 Xn
위험 카페고리 넘버 22
안전지침서 24
유엔번호(UN No.) UN 1990 9/PG 3
WGK 독일 1
RTECS 번호 CU4375000
F 고인화성물질 8
자연 발화 온도 374 °F
TSCA Yes
HS 번호 2912 21 00
위험 등급 9
포장분류 III
유해 물질 데이터 100-52-7(Hazardous Substances Data)
독성 LD50 in rats, guinea pigs (mg/kg): 1300, 1000 orally (Jenner)
기존화학 물질 KE-02713
그림문자(GHS):
신호 어: Warning
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 P264, P280, P302+P352, P321,P332+P313, P362
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 P264, P280, P305+P351+P338,P337+P313P
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고
H412 장기적 영향에 의해 수생생물에 유해함 수생 환경유해성 물질 - 만성 구분 3 P273, P501
예방조치문구:
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P273 환경으로 배출하지 마시오.
P301+P312 삼켜서 불편함을 느끼면 의료기관(의사)의 진찰을 받으시오.
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
2 0

벤즈알데하이드 MSDS


Benzaldehyde

벤즈알데하이드 C화학적 특성, 용도, 생산

물성

산화하기 쉽고, 공기 속에서 쉽게 벤조산이 되므로, 오랫동안 보존할 때는 주의를 요한다. 산화에 의하여 생긴 벤조산은 벤즈알데하이드에 녹지 않으므로 표면에 막 모양의 물질이 되어 위로 뜬다. 또 수산화알칼리의 작용으로 벤조산과 벤질알코올로, 환원시키면 벤질알코올이 된다.

개요

벤즈알데하이드(Benzaldehyde, C7H6O)는 가장 간단한 방향족 알데하이드다. 고편도유의 성분 중 하나이다.요약 방향족 알데하이드 중의 가장 간단한 것으로 특수한 향내가 나는 무색의 액체이다. 공기 중에서 쉽게 산화하여 벤조산이 되므로 보존에 주의해야 하며, 비교적 값싼 향료로서 많이 사용되고 있다.

용도

비교적 값싼 향료로서 비누·화장품 등에 다량으로 사용되며, 또한 고편도유의 대용으로도 사용된다.

순도시험

  (1) 비중 : 이 품목의 비중은 1.041~1.046이어야 한다.

  (2) 굴절률 : 이 품목의 굴절률 은 1.544~1.547이어야 한다.

  (3) 염소화합물 : 이 품목은 향료시험법 중 할로겐시험법의 동망법에 따라 시험할 때, 이에 적합하여야 한다.

확인시험

  (1) 이 품목 1mL에 아황산수소나트륨시액 3mL를 가하여 흔들어 섞으면 곧 발열하여 결정덩어리가 되고 이에 물 5mL를 가하면 녹는다.

  (2) 이 품목 3방울에 페놀 0.1g 및 황산 2mL를 가하여 흔들어 섞으면 암적색이 되고 일부는 수지화한다. 이 액 2방울을 취하여 물 5mL를 가하고 수산화나트륨시액으로 알칼리성이 되게 하면 자색을 나타낸다.

정량법

  이 품목은 약 0.8g을 정밀히 달아 향료시험법 중 알데히드류 및 케톤류함량측정법의 히드록실아민법 제2법에 따라 정량한다. 다만, 방치시간은 10분으로 한다.

0.5N 염산 1mL = 53.06mg C7H6O

출처

Present as cyanuric glucoside (amygdalin) in bitter almond, peach, apricot kernel and other Prunus species; amygdalin is also present in various parts of the following plants: Sambucus nigra, Chrysophyllum arlen, Anacyclus officinarnm, Anacyclus pedunculatus, Davallia brasiliensis, Lacuma deliciosa, Lacuma multiflora and others; free benzaldehyde has been reported found in several essential oils: hyacinth, citronella, orris, cinnamon, sassafras, labdanum and patchouli. Reported found in strawberry jam, leek (raw) (Allium porrum L.), crispbread, Camembert, Gruyere de Comte, provolone cheeses, black tea, salted and pickled plum, cooked trassi, Bantu beer, red sage (Texas sage) (S. coccinea Juss. Ex Murr.), arrack, scallop, hog plum (Spondias mombins L.), chekur (Alpinia sessilis Kon. = Kaemferia galanga) and other natural sources.

용도

Benzaldehyde is a flavoring agent which is liquid and colorless, and has an almond-like odor. it has a hot (burning) taste. it is oxidized to benzoic acid when exposed to air and deteriorates under light. it is miscible in volatile oils, fixed oils, ether, and alcohol; it is spar- ingly soluble in water. it is obtained by chemical synthesis and by natural occurrence in oils of bitter almond, peach, and apricot kernel. it is also termed benzoic aldehyde.

제조 방법

Benzaldehyde is prepared by hydrolysis of benzal chloride, for example, in acidic media in the presence of a catalyst such as ferric chloride or in alkaline media with aqueous sodium carbonate. Part of the commercially available benzaldehyde originates from a technical process for phenol. In this process, benzaldehyde is a by-product in the oxidation, in air, of toluene to benzoic acid.

정의

A yellow organic oil with a distinct almondlike odor. Benzenecarbaldehyde undergoes the reactions characteristic of aldehydes and may be synthesized in the laboratory by the usual methods of aldehyde synthesis. It is used as a food flavoring and in the manufacture of dyes and antibiotics, and can be readily manufactured by the chlorination of methylbenzene and the subsequent hydrolysis of (dichloromethyl) benzene: C6H5CH3 + Cl2 →C6H5CHCl2 C6H5CHCl2 + 2H2O →C6H5CH(OH)2+ 2HCl C6H5CH(OH)2 →C6H5CHO + H2O.

일반 설명

A clear colorless to yellow liquid with a bitter almond odor. Flash point near 145°F. More denser than water and insoluble in water. Hence sinks in water. Vapors are heavier than air. The primary hazard is to the environment. Immediate steps should be taken to limit spread to the environment. Easily penetrates the soil to contaminate groundwater and nearby waterways. Used in flavoring and perfume making.

공기와 물의 반응

Oxidizes in air to form benzoic acid, which is moderately toxic by ingestion. Insoluble in water.

반응 프로필

A nontoxic, combustible liquid, reacts with oxidizing reagents. Benzaldehyde must be blanketed with an inert gas at all times since Benzaldehyde is oxidized readily by air to benzoic acid [Kirk-Othmer, 3rd ed., Vol. 3, 1978, p. 736]. In contact with strong acids or bases Benzaldehyde will undergo an exothermic condensation reaction [Sax, 9th ed., 1996, p. 327]. A violent reaction was observed on contact with peroxyacids (peroxyformic acid) [DiAns, J. et al., Ber., 1915, 48, p. 1136]. An explosion occurred when pyrrolidine, Benzaldehyde, and propionic acid were heated to form porphyrins.

위험도

Highly toxic.

건강위험

Benzaldehyde exhibited low to moderate toxicityin test animals, the poisoning effectdepending on dosage. Ingestion of 50–60 mLmay be fatal to humans. Oral intake of a largedose can cause tremor, gastrointestinal pain,and kidney damage. Animal experimentsindicated that ingestion of this compoundby guinea pigs caused tremor, bleeding fromsmall intestine, and an increase in urine volume;in rats, ingestion resulted in somnolenceand coma.
LD50 value, oral (guinea pigs): 1000 mg/kg
LD50 value, oral (rats): 1300 mg/kg
A 500-mg amount for a 24-hour periodresulted in moderate skin irritation in rabbits.Because of its low toxicity, high boilingpoint, and low vapor pressure, the healthhazard to humans from exposure to benzaldehydeis very low.

화재위험

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

화학 반응

Reactivity with Water: No reaction; Reactivity with Common Materials: No reactions; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

Safety Profile

Poison by ingestion and intraperitoneal routes. Moderately toxic by subcutaneous route. An allergen. Acts as a feeble local anesthetic. Local contact may cause contact dermatitis. Causes central nervous system depression in small doses and convulsions in larger doses. A skin irritant. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. Combustible liquid. To fight fire, use water (may be used as a blanket), alcohol, foam, dry chemical. A strong reducing agent. Reacts violently with peroxyformic acid and other oxidizers. See also ALDEHYDES.

잠재적 노출

In manufacture of perfumes, dyes, and cinnamic acid; as solvent; in flavors.

신진 대사

Benzaldehyde was among 300 volatile constituents detected in the urine of ten adults . It is commonly converted to hippuric acid in vivo. In the rabbit and dog, hippuric acid appears to be the only metabolite there being practically no formation of benzoyl glucuronide. The conversion of benzaldehyde to benzoic acid in the rabbit follows first-order reaction kinetics

저장

Benzaldehyde should be kept stored in a tightly closed container and protected against physical damage. Storage of the chemical substance outside or in a detached area is preferred, whereas inside storage should be in a standard flammable liquids storage room or cabinet. Benzaldehyde should be kept separated from oxidizing materials. Also, storage and use areas should be no smoking areas. Containers of this material may be hazardous when empty since they retain product residues (vapors, liquid); observe all warnings and precautions listed for the product

운송 방법

UN1990 Benzaldehyde, Hazard class: 9; Labels: 9—Miscellaneous hazardous material.

Purification Methods

To diminish its rate of oxidation, benzaldehyde usually contains additives such as hydroquinone or catechol. It can be purified via its bisulfite addition compound but usually distillation (under nitrogen at reduced pressure) is sufficient. Prior to distillation it is washed with NaOH or 10% Na2CO3 (until no more CO2 is evolved), then with saturated Na2SO3 and H2O, followed by drying with CaSO4, MgSO4 or CaCl2. [Beilstein 7 IV 505.]

비 호환성

The substance reacts with air, forming explosive peroxides. Reacts violently with performic acid, oxidants, aluminum, iron, bases, and phenol, causing fire and explosion hazard. May self-ignite if absorbed in combustible material with large surface area, or otherwise dispersed over large areas. Reacts with rust, amines, alkalies, strong bases, reducing agents such as hydrideds and active metals.

폐기물 처리

Incineration; add combustible solvent and spray into incinerator with afterburner.

주의 사항

Workers should be careful when using benzaldehyde because there is a risk of spontaneous combustion. It may ignite spontaneously if it is absorbed onto rags, cleaning cloths, clothing, sawdust, diatomaceous earth (kieselguhr), activated charcoal, or other materials with large surface areas in workplaces. Workers should avoid handling the chemical substance and should not cut, puncture, or weld on or near the container. Exposure of benzaldehyde to air, light, heat, hot surfaces such as hot pipes, sparks, open flames, and other ignition sources should be avoided. Workers should wear proper personal protective clothing and equipment

벤즈알데하이드 준비 용품 및 원자재

원자재

준비 용품


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