• 仲丁醇 sec-Butanol (sec-Butyl Alcohol),Chongqing Guangyi Chemical Co., Ltd,仲丁醇 sec-Butanol (sec-Butyl Alcohol)
  • 仲丁醇 sec-Butanol (sec-Butyl Alcohol),Chongqing Guangyi Chemical Co., Ltd,仲丁醇 sec-Butanol (sec-Butyl Alcohol)

仲丁醇 sec-Butanol (sec-Butyl Alcohol)

No.CAS 78-92-2
sec-Butanol (C4H10O, CH3CH(OH)CH2CH3) is a secondary alcohol; a colorless, clear, flammable liquid with a wine-like or minty odor at room temperature. It is a racemic mixture (R/S 1:1, also available as single enantiomers) and is miscible with water, ethanol, ether and aromatic hydrocarbons - a well-balanced industrial solvent.
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  • 仲丁醇 sec-Butanol (sec-Butyl Alcohol),Chongqing Guangyi Chemical Co., Ltd,仲丁醇 sec-Butanol (sec-Butyl Alcohol)

Description

  1. Product Overview

仲丁醇(sec-Butanol;分子式 C4H10O,CH3CH(OH)CH2CH3)是一种仲醇,常温下为无色透明、略带葡萄酒或薄荷样气味的易燃液体;为外消旋混合物(R/S 各半,亦可以单一对映体存在)。可与水、乙醇、乙醚、芳烃等互溶,是性能均衡的工业溶剂。

sec-Butanol (C4H10O, CH3CH(OH)CH2CH3) is a secondary alcohol; a colorless, clear, flammable liquid with a wine-like or minty odor at room temperature. It is a racemic mixture (R/S 1:1, also available as single enantiomers) and is miscible with water, ethanol, ether and aromatic hydrocarbons - a well-balanced industrial solvent.

仲丁醇最主要的工业用途是催化脱氢制甲乙酮(MEK,占消费量约 70%–80%),亦用于合成醋酸仲丁酯等酯类、作涂料/油墨/清洗剂/树脂/染料分散剂的溶剂,以及香料、食品添加剂(香精)、选矿剂、有机合成中间体与色谱分析标准物质。其蒸气比空气重,属第 3 类易燃液体,须按危险化学品严格管控。

The principal industrial use of sec-Butanol is catalytic dehydrogenation to methyl ethyl ketone (MEK, ~70-80% of consumption); also for esters (sec-butyl acetate etc.), as a solvent in coatings/inks/cleaners/resins/dye dispersants, and in fragrances, food additives (flavors), flotation agents, organic-synthesis intermediates and chromatography standards. Vapour is heavier than air; Class 3 flammable liquid - strict hazardous-chemical control required.

产品标识 / Product Identification

CAS 登记号 CAS No.

78-92-2

分子式 Molecular formula

C4H10O(CH3CH(OH)CH2CH3)

分子量 Molecular weight

74.12 g/mol

EC 号 EC / EINECS

201-158-5

EC 索引号 EC Index

603-127-00-5

RTECS 号

EO1750000

PubChem CID

6568(经 PubChem 按 CAS 78-92-2 核验;注意 CID 6569 为 2-丁酮 MEK,不同

verified via PubChem by CAS 78-92-2; note CID 6569 is 2-butanone/MEK, distinct)

HS 编码 HS Code

29051420(中国 8 位,仲丁醇;10 位常见 2905142000

China 8-digit 29051420 (sec-butanol); 10-digit commonly 2905142000)

UN 编号 / 危险类别 UN / Class

UN 1120(BUTANOLS,丁醇类),第 3 类易燃液体,包装类别 III(PG III;部分 SDS 列 PG II)/ UN 1120 (BUTANOLS), Class 3 flammable liquid, Packing Group III (some SDS list PG II)

中国危险货物编号 China DG No.

33552,第 3 类易燃液体(高闪点易燃液体)/ 33552, Class 3 flammable liquid (high-flash-point)

别名 Synonyms

仲丁醇;2-丁醇;另丁醇;第二丁醇;甲基乙基甲醇;sec-Butanol;sec-Butyl Alcohol;2-Butanol;Butan-2-ol;Ethyl methyl carbinol

  1. 产品规格(工业级 / 试剂级,典型值) 2. Specifications (Industrial / Reagent Grade, Typical)

注:工业级参考 GB/T 22050-2008《工业用仲丁醇》(优等品/一等品),试剂级参考 Merck/Sigma 等指标;具体以 COA 为准。

Note: industrial grade per GB/T 22050-2008 (premium/first-class); reagent grade per Merck/Sigma etc. Per-COA applies.

项目 Item

指标 Specification

测试方法 Test Method

含量 Assay (GC)

≥ 99.5 %(工业优等品);≥ 99.0 %(试剂级) / >=99.5% (industrial premium); >=99.0% (reagent)

GC

外观 Appearance

无色透明液体,无机械杂质 / Colorless clear liquid, free of mechanical impurities

Visual

密度 Density (20 °C)

0.806 – 0.809 g/cm³(典型 0.808)

GB/T 4472

沸点 Boiling range

98 – 100 °C(典型 99.5 °C)

GB/T 7534

水分 Water (KF)

≤ 0.05 %(工业);≤ 0.20 %(试剂级)

GB/T 6283

酸度 Acidity (as CH3COOH)

≤ 0.003 %(工业);≤ 0.005 %(试剂级)

Titration

色度 Color (APHA/Hazen)

≤ 10

GB/T 3143

闪点 Flash point (闭杯 c.c.)

约 24 °C(范围 22–27 °C)

GB/T 261 / ASTM D93

不挥发物 Non-volatile matter

≤ 0.005 %(试剂级)

GB/T 6324.2

酮/醛 (以丁酮计) Ketone/Aldehyde

≤ 0.1 %(试剂级)

GB/T 6324

  1. 理化性质 3. Physical & Chemical Properties

分子式 Molecular formula

C4H10O(CH3CH(OH)CH2CH3)

分子量 Molecular weight

74.12 g/mol(精确质量 74.0732)

外观 Appearance

无色透明液体,葡萄酒/薄荷样气味

Colorless clear liquid, wine-like or minty odor

熔点 / 凝固点 Melting point

-115 °C

沸点 Boiling point

约 99.5 °C(常压;文献范围 98–100 °C

~99.5 C at 760 mmHg; range 98-100 C)

密度 Density

0.808 g/cm³(20 °C;文献范围 0.806–0.809);0.8026(25 °C)

相对蒸气密度 Vapor density (air=1)

约 2.6(比空气重

heavier than air)

蒸气压 Vapor pressure

约 1.6 kPa(≈12 mmHg)@ 20 °C(文献 1.33–1.67 kPa)

闪点 Flash point

约 24 °C(闭杯;实测范围约 22–27 °C;部分 SDS 列 23 °C)/ ~24 C (closed cup; measured range ~22-27 C; some SDS list 23 C)

自燃温度 Auto-ignition temp.

约 405 °C(≈761 °F;部分 SDS 列 390 °C,属测定差异

~405 C (761 F); some SDS list 390 C, measurement variant)

爆炸极限 Explosive limits (air)

下限约 1.7 %(体积;部分 SDS 列 1.4 %),上限约 9.8 %(体积)/ LEL ~1.7% v/v (some SDS 1.4%), UEL ~9.8% v/v

折射率 Refractive index (n20/D)

1.3978(文献 1.396–1.398)

分配系数 log P (辛醇/水)

约 0.61(XLogP3 计算值;维基 0.683)/ ~0.61 (XLogP3; Wikipedia 0.683)

粘度 Viscosity (20 °C)

约 4.1 mPa·s(basechem 4.210)

溶解度 Solubility

溶于水(约 12.5 g/100 mL,即 125 g/L @ 20 °C;注:早期 Beilstein 12.5 g/100g 值广为沿用,1886 年数据提示更高溶解度 ~35 g/100g);与乙醇、乙醚、芳烃互溶

Soluble in water (~12.5 g/100 mL = 125 g/L @20 C; miscible with ethanol, ether, aromatics)

酸度系数 pKa

约 17(弱酸;Schwarzenbach >14)/ ~17 (very weak acid)

介电常数 Dielectric constant

约 15.8(25 °C,参考值

indicative)

对水危害等级 WGK

1(德国;所有来源一致,无冲突

1 (Germany); all sources agree, no conflict)


  1. 应用领域 4. Applications

甲乙酮(MEK)生产:催化脱氢制 MEK(涂料、胶粘剂、清洗剂用溶剂),占仲丁醇消费量约 70%–80%,是最主要用途。

Methyl ethyl ketone (MEK) production: catalytic dehydrogenation to MEK (solvent for coatings, adhesives, cleaners) - ~70-80% of sec-butanol consumption, the dominant use.

酯类合成:与羧酸酯化生成醋酸仲丁酯(涂料溶剂、医药中间体)、邻苯二甲酸二仲丁酯(增塑剂)等。

Ester synthesis: esterification with carboxylic acids gives sec-butyl acetate (coating solvent, pharma intermediate), disec-butyl phthalate (plasticizer) etc.

溶剂应用:涂料、油墨、工业清洗剂、树脂生产、染料分散剂、选矿浮选剂;亦用作香料/食品添加剂(香精)与色谱分析标准物质。

Solvent use: coatings, inks, industrial degreasers/cleaners, resin production, dye dispersant, flotation agent; also fragrance/food additive (flavors) and chromatography standard.


  1. 储存与操作 5. Storage & Handling

阴凉、通风、干燥、防爆库房;远离火种、热源与引火源,库温不宜超过 30 °C(部分 SDS 建议 ≤37 °C);密封。按第 3 类易燃液体管理,使用防爆型照明与通风,禁用易产生火花的设备与工具,容器与管线须可靠接地/跨接防静电。仲丁醇长期储存可生成过氧化物,须定期检测。

Store in a cool, well-ventilated, dry, explosion-proof area; away from ignition sources and heat (keep <= 30 C; some SDS suggest <= 37 C); sealed. Managed as Class 3 flammable liquid: explosion-proof lighting/ventilation, no sparking equipment/tools, bond/ground containers and piping against static. sec-Butanol may form peroxides on prolonged storage - test periodically.

操作人员须佩戴耐溶剂手套(丁腈等)、化学防护眼镜与防护服;在通风良好处操作,避免皮肤/眼睛接触与吸入蒸气。本品具眼/呼吸道刺激与麻醉效应(H319/H335/H336)。容器宜用钢、不锈钢、铝或高密度聚乙烯;保持密封,防潮。

Operators wear solvent-resistant gloves (nitrile etc.), chemical goggles and protective clothing; work in well-ventilated areas; avoid skin/eye contact and vapour inhalation. Irritant to eyes/respiratory tract with narcotic effects (H319/H335/H336). Prefer steel, stainless steel, aluminum or HDPE containers; keep sealed, dry.

禁忌:与强氧化剂(硝酸、高锰酸钾、过氧化物等)、强酸、酸酐、酰基氯、卤素分开存放,切忌混储;遇强氧化剂可剧烈反应。泄漏用砂土、硅藻土等惰性吸附材料收集,防止进入下水道、地表水与土壤。

Incompatibilities: segregate from strong oxidizers (nitric acid, permanganate, peroxides), strong acids, acid anhydrides, acid chlorides, halogens; violent reaction with strong oxidizers. Collect spills with inert absorbents (sand, diatomite); prevent entry into sewers, surface water and soil.


  1. 包装 6. Packaging

玻璃瓶 / 塑料瓶:500 mL、1 L、2.5 L 等(试剂/分析级常见包装)。

Glass / plastic bottle: 500 mL, 1 L, 2.5 L etc. (common reagent/analytical packs).

铁桶 Steel / galvanized drum:160 kg/桶 或 180 kg/桶(工业级常见)。

Steel / galvanized drum: 160 kg/drum or 180 kg/drum (common industrial).

IBC 吨桶 / 散装:可按客户需求提供。

IBC tote / bulk: available on request.

注意:属第 3 类易燃液体(UN 1120,PG III),须使用符合 UN 包装要求的容器并张贴第 3 类危险标识;具体按目的国法规与承运人要求。

Note: Class 3 flammable liquid (UN 1120, PG III) - use UN-compliant packaging and affix Class 3 hazard labels; per destination regulation and carrier.


  1. 保质期 7. Shelf Life

在原包装、密闭、阴凉通风(≤ 30 °C,避光、远离热源与火种、防潮)条件下,建议保质期 12 个月;长期储存有生成过氧化物风险,开封后宜尽快使用并密封保存,定期检测过氧化物。

Recommended shelf life 12 months under original sealed packaging, cool and dry (<= 30 C, away from light, heat, ignition and moisture). Prolonged storage may form peroxides - use promptly after opening, keep sealed, and test for peroxides periodically.

  1. 安全提示 8. Safety Note

GHS 危险性分类(Sigma-Aldrich/Merck、ChemicalBook、ChemBlink、ECHA C&L 库存、维基/OSHA 主流共识):易燃液体 3 类 H226(易燃液体和蒸气,信号词 警告/Warning);严重眼刺激 2A 类 H319;特异性靶器官毒性-一次接触 3 类 H335(呼吸道刺激);特异性靶器官毒性-一次接触 3 类 H336(麻醉效应/嗜睡眩晕)。象形图:GHS02(火焰)+ GHS07(感叹号)。

GHS classification (Sigma-Aldrich/Merck, ChemicalBook, ChemBlink, ECHA C&L Inventory, Wikipedia/OSHA mainstream consensus): Flam. Liq. 3 H226 (flammable liquid and vapour, Signal word Warning); Eye Irrit. 2A H319; STOT SE 3 H335 (respiratory irritation); STOT SE 3 H336 (narcotic effects/drowsiness/dizziness). Pictograms: GHS02 (flame) + GHS07 (exclamation).

⚠ 易燃(最重要):闪点约 24 °C(闭杯,实测 22–27 °C)、沸点约 99.5 °C,挥发性中等;蒸气比空气重(相对蒸气密度约 2.6),可沿地面扩散至远处引火源并回燃;爆炸极限约 1.7 %–9.8 %;自燃温度约 405 °C。须严格防火、防爆、防静电。长期储存可生成过氧化物(潜在爆炸性)。

⚠ Flammable (MOST IMPORTANT): flash point ~24 C (c.c.; measured 22-27 C), boiling point ~99.5 C, moderate volatility; vapour heavier than air (vapor density ~2.6) and can flash back from a distant ignition source; explosive limits ~1.7%-9.8%; autoignition ~405 C. Strict fire/explosion/static control required. Prolonged storage may form peroxides (potentially explosive).

刺激性 / 麻醉:H319 严重眼刺激、H335 呼吸道刺激、H336 嗜睡眩晕。操作时佩戴 PPE,避免皮肤/眼睛接触与吸入;皮肤接触用肥皂水冲洗,眼睛接触用清水冲洗并就医。

Irritation / narcotic: H319 serious eye, H335 respiratory, H336 drowsiness. Wear PPE; avoid skin/eye contact and inhalation; wash skin with soap/water; rinse eyes with water and seek medical care.

灭火用抗醇泡沫、干粉、二氧化碳或砂土;可用水冷却火场容器。燃烧可能产生一氧化碳等有毒烟气,消防人员须佩戴防毒面具、在上风向灭火。

Use alcohol-resistant foam, dry powder, CO2 or sand; water may cool containers. Combustion may release toxic CO fumes - firefighters wear respirators and fight from upwind.

急性毒性 Toxicity:低毒。LD50 大鼠经口约 6480 mg/kg;LD50 大鼠经皮 > 2000 mg/kg。对水生环境危害等级 WGK 1(德国,所有来源一致)。

Acute toxicity: low toxicity. LD50 rat oral ~6480 mg/kg; LD50 rat dermal >2000 mg/kg. Water hazard WGK 1 (Germany; all sources agree).

运输信息 Transport:UN 1120(BUTANOLS,丁醇类),第 3 类易燃液体,包装类别 III(部分 SDS 列 PG II,因闪点边界判定差异),中国危险货物编号 33552。须使用 UN 认证包装、张贴第 3 类危险标识,海运/空运/公路分别符合 IMDG/IATA/ADR 要求;具体以目的国法规与承运人判定为准。

Transport: UN 1120 (BUTANOLS), Class 3 flammable liquid, Packing Group III (some SDS list PG II due to borderline flash-point classification), China DG No. 33552. Use UN-certified packaging and Class 3 labels; comply with IMDG/IATA/ADR as applicable; per destination regulation and carrier.

法规 Regulatory:列入中国《危险化学品目录(2015版)》序号 219(易燃液体3类、眼刺激2类、STOT SE3),危险货物编号 33552;经多源核实不属于易制毒、易制爆、重点监管、监控化学品或特别管控化学品。工业级执行 GB/T 22050-2008。美国 TSCA 已列;欧盟 REACH 已注册(Active)。出口须提供商检与合规 SDS/标签。

Regulatory: listed in China's at entry No. 219 (Flam. Liq. 3, Eye Irrit. 2, STOT SE 3), China DG No. 33552. Verified NOT a controlled precursor / explosively-unstable / key-supervised / monitored / specially-controlled chemical. Industrial grade follows GB/T 22050-2008. US TSCA listed; EU REACH registered (Active). Export requires commodity inspection and compliant SDS/labels.

NFPA 704:健康 2 / 易燃 3 / 反应 0(H 2 / F 3 / R 0)。

NFPA 704: Health 2 / Flammability 3 / Reactivity 0 (H 2 / F 3 / R 0).

免责声明 / Disclaimer

本技术数据表(TDS)所载信息基于公开标准、行业惯例及供应商提供的数据编制,仅供用户参考,不构成任何明示或暗示的担保。

The information in this Technical Data Sheet (TDS) is compiled from published standards, general industry practice, and data supplied by the manufacturer/supplier. It is provided for the user's reference only and constitutes no express or implied warranty of any kind.

表中规格为工业级/试剂级典型参考值,具体指标以每批次《分析合格证(COA)》为准;用户应自行确认产品对特定用途的适用性与合规性,并遵守所在地法律法规。尤其注意本品易燃、具刺激与麻醉性,须按危险化学品严格管控。

The specifications listed are typical reference values for industrial/reagent grade; actual values are subject to the Certificate of Analysis (COA) of each batch. Users shall independently verify the product's suitability and regulatory compliance for the intended use and shall comply with applicable laws and regulations. Note especially that this product is flammable with irritant and narcotic properties and must be strictly controlled as a hazardous chemical.

在法律允许的最大范围内,重庆广益化工有限公司不对因使用本数据表或本产品而产生的任何损失、损害或后果承担责任。

To the maximum extent permitted by law, Chongqing Guangyi Chemical Co., Ltd. shall not be liable for any loss, damage, or consequence arising from the use of this data sheet or this product.