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HCID 14487생성일: 2026년 10월 27일

디이소부틸알루미늄하이드라이드

디아이소뷰틸알루미늄수화물 · 디이소부틸알루미늄수화물 · 디이소부틸알루미늄하이드라이드 · 다이아이소뷰틸알루미늄 수소화물 · DIBAL-H · Dibal · DIISOBUTYLALUMINUM HYDRIDE · DIBAH

https://huagongshe.com/ko/chemical/14487

디이소부틸알루미늄하이드라이드 분자 구조식

식별자 및 물리적 특성

CAS No.1191-15-7
분자식C8H19Al
평균 분자량142.22 g/mol
단동위원소 질량142.13021424 g/mol
SMILESCC(C)[CH2][AlH][CH2]C(C)C
InChIKeyAZWXAPCAJCYGIA-UHFFFAOYSA-N
PubChem CID14487
EC No.214-729-9
DTXSIDDTXSID4041866
현지명디이소부틸알루미늄하이드라이드

화학 및 물리적 성질

극성 표면적0
수소 결합 공여자 수0
수소 결합 수용자 수0
회전 가능 결합 수4
무거운 원자 수9
형식 전하0
복잡도49.6
물질 분류Metals -> Metals, Organic CompoundsFlammable agents - 4th degree
밀도0.798 g/mL0.798 @25 °C1.23 g/mL at 25 °C
Viscosity18.0 mPa-s (millipascal second) at 25 °C
Color/FormColorless liquid
용해도Miscible with hydrocarbon solvents유기용매와 섞일 수 있음.
끓는 점105 °C @ 0.2 mm Hg65 °C
녹는점-80 °C (Freezing point)-70 °C
Heat of Combustion-6412 kJ/mol (kilojoules/mole)
Physical DescriptionCBIColorless liquid[Hawley]
Stability/Shelf LifeLow melting solids or colorless, volatile liquids. /Alkylaluminum halides/Less sensitive than trialkylaminums to oxidation upon exposure to air. /Alkylaluminum halides/
Other Experimental PropertiesPyrophoricdilute solutions nonpyrophoricSpecific heat: 2.15 J/g at 57 °CThe fumes are white, possess a characteristic musty odor at low concentrations, and thus have suitable warning properties. /Aluminum alkyls/Dialkylaluminum hydrides are trimeric, with bridging hydrides.
증기압13.3Pa at 90℃
인화점40 °F
저장 조건2-8°C
물리적 상태액체
비중0.860
색상투명한
용해도격렬한 반응
BRN4123663
InChI1S/2C4H9.Al.H/c2*1-4(2)3/h2*4H,1H2,2-3H3
InChIKeyAZWXAPCAJCYGIA-UHFFFAOYSA-N
SMILESCC(C)C[AlH]CC(C)C
LogP(분배 계수)4.22
NISTDiisobutylaluminum hydride(1191-15-7)
EPADiisobutylaluminum hydride (1191-15-7)

화학적 성질

Diisobutylaluminium hydride, also known as Dibal. colorless liquid. Viscosity 18.0mPa-s(25℃). Reacts violently with water to form hydrogen and isobutane. Tetrahydrofuran is not suitable as Dibal solvent, because the two react to produce coordination compounds. Diisobutylaluminium hydride is a useful reducing agent in organic synthesis. It can reduce ketones, carboxylic acids and esters to the corresponding alcohols. Dibal can also reduce lactones to o-hydroxy lactones.

안전 및 규제

GHS 분류DangerH250 (97.7%): Catches fire spontaneously if exposed to air [Danger Pyrophoric liquids]P210, P222, P223, P231, P231+P232, P233, P260, P264, P264+P265, P280, P301+P330+P331, P302+P335+P334, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P370+P378, P402+P404, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 173 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
규제 정보Chemical: Aluminium, hydrobis(2-methylpropyl)-Aluminum, hydrobis(2-methylpropyl)- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Aluminum, hydrobis(2-methylpropyl)- 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: 20-12-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/13341Aluminium, hydrobis(2-methylpropyl)-: HSNO Approval: HSR001272 Approved with controlsThe 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 정보IMAP assessments - Aluminium, hydrobis(2-methylpropyl)-: Human health tier I assessment
화재 가능성The undiluted material ignites in air unless diluted to below 25% concentration.Ignites spontaneously in air.Certain polymerization catalysts, such as aluminum alkyls, react & burn violently on contact with water. /Aluminum alkyls/Aluminum alkyls are organic aluminum compounds that are highly reactive and dangerous because of spontaneous burning in air. /Aluminum alkyls/Prophoric material in flammable solvent. Vapors are heavier than air & may travel to a source of ignition & flash back. /Aluminum alkyls/
유해성 요약Spontaneously ignites in air[Hawley] Stored 25% w/w in hexanePyrophoricReacts violently with water, evolving extremely flammable gasesA corrosive substance that can cause injury to the skin, eyes, and respiratory tract

용도

개요

Diisobutylaluminium hydride (DIBALH, DIBAL, DIBAL-H or DIBAH) is a reducing agent with the formula (i-Bu2AlH)2, where i-Bu represents isobutyl (-CH2CH(CH3)2). It can be used for various homogeneous reductions such as alkynes to alkenes, esters or nitriles to aldehydes. It is available commercially as the neat reagent and as a solution in several different solvents (hexane, dichloromethane, tetrahydrofuran, etc.). The neat reagent is a liquid and is supplied in metal cylinders. It is pyrophoric and highly reactive and therefore must be handled with great care. The molar solutions in organic solvents are more stable and easier to handle provided that the normal precautions are taken for working with air-sensitive compounds. They must all be handled in an atmosphere free from oxygen and water. Commonly used solvents for diisobutylaluminium hydride are dichloromethane, diglyme, dioxane and tetrahydrofuran. Even when the substrate is not completely soluble in these solvents successful reductions can be accomplished.

용도

Diisobutylaluminum hydride is commonly used as a reducing agent in organic synthesis.Diisobutylaluminum hydride can be used in the following protocols:As a promotor of Tishchenko reaction of aldehydes.Conversion of benzylidene acetals of 1,2-and 1,3-glycols to the corresponding monobenzyl ethers of the glycols.To generate a novel chiral reducing agent based on (S)-proline for the asymmetric reduction of prochiral ketones.

Inhalation may cause chemical pneumonitis and pulmonary edema
May have CNS effects
[MSDSonline] Organoaluminum compounds are corrosive
Harmful if absorbed through the skin or inhaled
The butyl alkyls and below are pyrophoric
Aluminum alkyls are eye irritants
[HSDB] Organic aluminum compounds can cause irritation or burns, depending upon concentration
[Ullmann] TLV withdrawn for aluminum alkyls because of inadequate toxicological data
[ACGIH] See Aluminum. See ORGANOMETALS.
OSHA StandardsVacated 1989 OSHA PEL TWA 2 mg/cu m is still enforced in some states. /Aluminum, soluble salts & alkyls, as Al/
DOT Emergency Guidelines/GUIDE 138: SUBSTANCES - WATER-REACTIVE (EMITTING FLAMMABLE GASES)/ Fire or Explosion: Produce flammable gases on contact with water. May ignite on contact with water or moist air. Some react vigorously or explosively on contact with water. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished. Some are transported in highly flammable liquids. Runoff may create fire or explosion hazard. /Aluminum alkyl hydrides//GUIDE 138: SUBSTANCES - WATER-REACTIVE (EMITTING FLAMMABLE GASES)/ Health: Inhalation or contact with vapors, substance, or decomposition products may cause severe injury or death. May produce corrosive solutions on contact with water. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution. /Aluminum alkyl hydrides//GUIDE 138: SUBSTANCES - WATER-REACTIVE (EMITTING FLAMMABLE GASES)/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meter (75 feet) for solids. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate the area before entry. /Aluminum alkyl hydrides//GUIDE 138: SUBSTANCES - WATER-REACTIVE (EMITTING FLAMMABLE GASES)/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing will only provide limited protection in fire situations ONLYit is not effective in spill situations where direct contact with the substance is possible. /Aluminum alkyl hydrides/For more DOT Emergency Guidelines (Complete) data for DIISOBUTYLALUMINUM HYDRIDE (8 total), please visit the HSDB record page.
NFPA Hazard Classification3 - Materials that, under emergency conditions, can cause serious or permanent injury.4 - Materials that rapidly or completely vaporize at atmospheric pressure and normal ambient temperature or that are readily dispersed in air and burn readily.3 - Materials that in themselves are capable of detonation or explosive decomposition or explosive reaction but that require a strong initiating source or must be heated under confinement before initiation.
NIOSH RecommendationsRecommended Exposure Limit: 10-Hr Time-Weighted Avg: 10 mg/cu m (total). /Aluminum/Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 5 mg/cu m (resp). /Aluminum/Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 2 mg/cu m. /Aluminum (soluble salts and alkyls, as Al)/Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 5 mg/cu m. /Aluminum (pyro powders and welding fumes, as Al)/
Hazard Classes and CategoriesPyr. Liq. 1 (97.7%)Flammable agents - 4th degree, Reactive agents - 3rd degree
State Drinking Water Standards(CA) CALIFORNIA 1000 ug/l /Aluminum/
주 식수 지침(AZ) ARIZONA 73 ug/l /Aluminum/(CA) CALIFORNIA 200 ug/l /Aluminum/(ME) MAINE 1430 ug/l /Aluminum/
Shipment Methods and RegulationsThe International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./
노출 관리 및 개인 보호TIH (Toxic Inhalation Hazard) - Term used to describe gases and volatile liquids that are toxic when inhaled. Some are TIH materials themselves, e.g., chlorine, and some release TIH gases when spilled in water, e.g., chlorosilanes. [ERG 2016].
소화 절차Do not use water, foam or halogenated extinguishing agents.Stop flow of liquid before extinguishing fire. Use dry chemical or carbon dioxide. DO NOT use water as straight stream directly on spilled material. Water fog can be used to control fire. DO NOT use halogenated extinguishing agents on spilled material. Violent reaction may result. Use water spray to keep fire-exposed containers cool. Fight fire from protected location or maximum possible distance. /Aluminum Alkyls/
보관 조건Extremely reactive with air, moisture and compounds containing active hydrogen and therefore must be kept under a blanket of inert gas. /Aluminum alkyls/In general, materials ... toxic as stored or which can decompose into toxic components ... Should be stored in cool ... ventilated place, out of ... sun, away from ... fire hazard ... be periodically inspected and monitored. Incompatible materials should be isolated ...All possibility of contact with water must be avoided. Solution containing not more than 20% of these compounds in non-reactive solvents, however, can be handled without risk of spontaneous ignition. /Aluminum alkyls/Must be stored in an inert atmospheresensitive to oxidation and hydrolysis in air. /Trialkylaluminums/Separate from air, water, halocarbons, alcohols. Store in a cool, dry, well-ventilated location. Outside or detached storage is preferred. Inside storage should be in a standard flammable liquid storage warehouse, room, or cabinet. /Aluminum alkyls/
처리 방법Aluminum compounds are treated under anhydrous conditions to prevent violent reactions, recover solvent, and form Al compounds suitable for landfill by reaction with anhydrous hydrolysis agent, eg calcium hydroxide. /Aluminum compounds/SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air qualitypotential migration in soil or watereffects on animal, aquatic, and plant lifeand conformance with environmental and public health regulations.
Preventive MeasuresSRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.Work clothing that becomes wet or significantly contaminated should be removed and replaced. /Aluminum (soluble salts and alkyls, as Al)/Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premises. /Aluminum (soluble salts and alkyls, as Al)/The worker should immediately wash the skin when it becomes contaminated. /Aluminum (soluble salts and alkyls, as Al)/SRP: Contaminated protective clothing should be segregated in such a manner so that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. Quality assurance to ascertain the completeness of the cleaning procedures should be implemented before the decontaminated protective clothing is returned for reuse by the workers. Contaminated clothing should not be taken home at end of shift, but should remain at employee's place of work for cleaning.
Minimum Risk LevelIntermediate Oral: 1.0 mg/kg/day (L134) Chronic Oral: 1.0 mg/kg/day (L134)
Threshold Limit Values (TLV)8 hr Time Weighted Avg (TWA): 1 mg/cu m (respirable fraction). /Aluminum metal and insoluble compounds/Excursion Limit Recommendation: Excursions in worker exposure levels may exceed 3 times the TLV-TWA for no more than a total of 30 minutes during a work day, and under no circumstances should they exceed 5 times the TLV-TWA, provided that the TLV-TWA is not exceeded. /Aluminum and compounds, as Almetal dust, pyro powders, soluble salts & alkyls (not otherwise specified)/A4Not classifiable as a human carcinogen. /Aluminum metal and insoluble compounds/
Protective Action Criteria (PAC)29 [mg/m3]320 [mg/m3]1900 [mg/m3]
Personal Protective Equipment (PPE)Wear appropriate personal protective clothing to prevent skin contact. /Aluminum (soluble salts and alkyls, as Al/Wear appropriate eye protection to prevent eye contact. /Aluminum (soluble salts and alkyls, as Al)/Protective clothing and a high standard of training in the necessary precautionary measures are essential for the handling of the materials. /Aluminum alkyls/
건강 영향Aluminum targets the nervous system and causes decreased nervous system performance and is associated with altered function of the blood-brain barrier. The accumulation of aluminum in the body may cause bone or brain diseases. High levels of aluminum have been linked to Alzheimer's disease. A small percentage of people are allergic to aluminium and experience contact dermatitis, digestive disorders, vomiting or other symptoms upon contact or ingestion of products containing aluminium. (L739, L740)
유해 작용Dermatotoxin - Skin burns.
노출 경로Oral (L739)inhalation (L739)
독성 요약The main target organs of aluminum are the central nervous system and bone. Aluminum binds with dietary phosphorus and impairs gastrointestinal absorption of phosphorus. The decreased phosphate body burden results in osteomalacia (softening of the bones due to defective bone mineralization) and rickets. Aluminum's neurotoxicity is believed to involve several mechanisms. Changes in cytoskeletal protein functions as a results of altered phosphorylation, proteolysis, transport, and synthesis are believed to be one cause. Aluminum may induce neurobehavioral effects by affecting permeability of the blood-brain barrier, cholinergic activity, signal transduction pathways, lipid peroxidation, and impair neuronal glutamate nitric oxide-cyclic GMP pathway, as well as interfere with metabolism of essential trace elements because of similar coordination chemistries and consequent competitive interactions. It has been suggested that aluminum's interaction with estrogen receptors increases the expression of estrogen-related genes and thereby contributes to the progression of breast cancer (A235), but studies have not been able to establish a clear link between aluminum and increased risk of breast cancer (A15468). Certain aluminum salts induce immune responses by activating inflammasomes. (L739, A235, A236)
Signs and SymptomsInhalating aluminum dust causes coughing and abnormal chest X-rays. A small percentage of people are allergic to aluminium and experience contact dermatitis, digestive disorders, vomiting or other symptoms upon contact or ingestion of products containing aluminium. (L739, L740)
Human Toxicity Excerpts/SIGNS AND SYMPTOMS/ Corrosive. Causes severe eye and skin burns. Irritating to skin, eyes, and respiratory system. May be harmful if absorbed through skin or inhaled. "Metal fume fever" may result from inhalation of fumes /from organoaluminum compounds/. /SRP: While possible, metal fume fever is not highly probable./ /Organoaluminum compounds//OTHER TOXICITY INFORMATION/ Vapors of the pyrophoric alkyls (butyls and below) are nontoxic because they are completely consumed, but inhalation of the metallic oxide smoke (Al2O3) at 15 mg/cu m or greater can result in symptoms such as "metal fume fever." /Aluminum alkyls/
Carcinogen ClassificationNot listed by IARC. IARC classified aluminum production as carcinogenic to humans (Group 1), but did not implicate aluminum itself as a human carcinogen. (L135) A link between use of aluminum-containing antiperspirants and increased risk of breast cancer has been proposed (A235), but studies have not been able to establish a clear link (A15468).
Evidence for CarcinogenicityA4Not classifiable as a human carcinogen. /Aluminum metal and insoluble compounds/
Toxicity DataLCLo (guinea pigs) = 70,000 mg/m3/1h
연방 식수 지침EPA 50-200 ug/l /Aluminum/
수질 위해 등급(WGK)2
TSCA 등재 상태TSCA listed
RTECS 번호BD0710000
운송 번호(UN)UN 3399 4.3/PG 1
관세 코드29319090
위험 문구(R)14/15-17-35-40-67-65-63-48/20-11-34-19-62-51/53-23/24/25-20/21/22-15-14-50/53-37-22
위험 표시F,T,C,N
안전 문구(S)26-43-45-62-46-36/37/39-29-16-61-27-9
포장분류I
위험 등급4.3Aquatic Acute 1Aquatic Chronic 1Asp. Tox. 1Eye Dam. 1Pyr. Liq. 1Skin Corr. 1BSTOT SE 3Water-react 1
기존화학 물질KE-10903
F 고인화성물질1-4.3-10
저장 분류4.2 - Pyrophoric and self-heating hazardous materials
유해 물질 데이터1191-15-7(Hazardous Substances Data)