• 异丁醇 Isobutanol (2-Methyl-1-propanol),Chongqing Guangyi Chemical Co., Ltd,异丁醇 Isobutanol (2-Methyl-1-propanol)
  • 异丁醇 Isobutanol (2-Methyl-1-propanol),Chongqing Guangyi Chemical Co., Ltd,异丁醇 Isobutanol (2-Methyl-1-propanol)

异丁醇 Isobutanol (2-Methyl-1-propanol)

No.CAS 78-83-1
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  • 异丁醇 Isobutanol (2-Methyl-1-propanol),Chongqing Guangyi Chemical Co., Ltd,异丁醇 Isobutanol (2-Methyl-1-propanol)

Description

  1. Product Overview

异丁醇(又称 2-甲基-1-丙醇、异丙基甲醇)为无色透明、易挥发液体,具有特殊的醇类气味,是丁醇的异构体之一(区别于正丁醇、仲丁醇、叔丁醇)。

Isobutanol (also 2-methyl-1-propanol, isopropylcarbinol) is a clear, colorless, volatile liquid with a characteristic alcohol odor. It is an isomer of butanol (distinct from n-, sec- and tert-butanol).

本品为重要的有机溶剂与有机合成中间体,广泛用于涂料、油墨、树脂与硝基漆,也是异丁酯(如乙酸异丁酯)、增塑剂、香料香精及农药中间体的原料。属低毒类,已被批准为食品用香料(FEMA 2179,GB 2760 允许使用)。

An important solvent and organic-synthesis intermediate, widely used in paints, inks, resins and nitrocellulose lacquers, and as feedstock for isobutyl esters (e.g. isobutyl acetate), plasticizers, flavors/fragrances and pesticide intermediates. Low-toxicity; approved as a food flavoring (FEMA 2179, permitted under GB 2760).

产品标识 / Product Identification

CAS 登记号 CAS No.

78-83-1

分子式 Molecular formula

C4H10O

分子量 Molecular weight

74.12 g/mol

EINECS 号 EINECS No.

201-148-0

EC 索引号 EC Index No.

603-108-00-1

MDL 号 MDL No.

MFCD00004740

RTECS 号 RTECS

NP9625000

FEMA 号 FEMA No.

2179

UN 编号 UN Number

1212(第3类 易燃液体,包装类别 III

Class 3 flammable liquid, Packing Group III)

HS 编码 HS Code

29051490

别名 Synonyms

异丁醇;2-甲基-1-丙醇;异丙基甲醇;IBA

Isobutanol; 2-Methyl-1-propanol; Isobutyl alcohol; Isopropylcarbinol; IBA


  1. Specifications (Technical Grade, Typical)

项目 Item

指标 Specification

测试方法 Test Method

异丁醇含量 Assay (GC)

≥ 99.0 %

GC

水分 Water (KF)

≤ 0.10 %

GB/T 6283 / ASTM E1064

外观 Appearance

无色透明液体 / Clear colorless liquid

Visual

色度 Color (APHA)

≤ 10

GB/T 3143 / ASTM D1209

酸度 Acidity (as CH3COOH)

≤ 0.003 %

GB/T 6324.5 / ASTM D1613

密度 Density (20 °C)

0.801 – 0.804 g/cm³

GB/T 4472 / ASTM D4052

馏程 Distillation range (≥95% v/v)

107 – 109 °C

GB/T 7534 / ASTM D1078

折射率 Refractive index (n20/D)

1.393 – 1.396

ASTM D1218

蒸发残渣 Residue on evaporation

≤ 0.003 %

GB/T 6324.2

羰基化合物 Carbonyl (as butyraldehyde)

≤ 0.05 %

GC / ASTM E411

正丁醇 n-Butanol

≤ 0.20 %

GC

过氧化物 Peroxides (as H2O2)

≤ 0.001 %

GB/T 6324.3


  1. Physical & Chemical Properties

分子式 Molecular formula

C4H10O

分子量 Molecular weight

74.12 g/mol

外观 Appearance

无色透明易挥发液体

Clear colorless volatile liquid

气味 Odor

特殊的醇类气味

Characteristic alcohol odor

熔点 Melting point

-108 °C

沸点 Boiling point

107.9 – 108 °C( lit. 107.66 – 108 °C)

密度 Density (20 °C)

0.802 g/cm³(25 °C 约 0.803 g/cm³

lit. 0.803 @ 25 °C)

相对蒸气密度 Vapor density (air=1)

约 2.5

蒸气压 Vapor pressure

10.5 mmHg(约 14 hPa)@ 20 °C;文献 10.4 – 12 hPa

lit. 10.4 – 12 hPa @ 20 °C

闪点 Flash point (closed cup)

28 °C(闭杯 CC;文献 27 – 28 °C

lit. 27 – 28 °C)

自燃温度 Auto-ignition temp.

415 °C

爆炸极限 Explosive limits (air, v/v)

1.4 – 11.0 %

折射率 Refractive index (n20/D)

1.395

分配系数 log Pow (n-辛醇/水)

约 0.8

溶解度 Solubility

微溶于水(约 8.5 g/100 mL @ 20 °C);与乙醇、乙醚及多数有机溶剂混溶

Slightly soluble in water (ca. 8.5 g/100 mL @ 20 °C); miscible with ethanol, ether and most organic solvents


  1. Applications

溶剂(主要用途):用于涂料、油漆、清漆、树脂、硝基漆与油墨,亦作清洗剂、脱漆剂组分,以及胶黏剂中的中沸点溶剂。

Solvent (primary use): paints, varnishes, lacquers, resins and inks; also a component of cleaners, paint strippers and a medium-evaporating solvent in adhesives.

有机中间体:合成异丁酯(乙酸异丁酯等增塑剂、香料)、异丁胺、润滑油添加剂及部分农用化学品(如二嗪磷中间体异丁腈)。

Organic intermediate: isobutyl esters (plasticizer/fragrance isobutyl acetate etc.), isobutylamines, lube-additive precursors and some agrochemicals (e.g. diazinon intermediate).

其他:汽油添加剂与调和组分;医药与精细化工萃取剂;浮选剂与油田用化学品;允许使用的食品香料(FEMA 2179)。

Other: gasoline additive/blendstock; extraction solvent in pharma/fine chemicals; flotation reagent and oilfield process chemical; permitted food flavouring (FEMA 2179).


  1. Storage & Handling

储存于阴凉、通风、干燥库房,库温不宜超过 30 °C,避光、密封保存;远离火种、热源。

Store in a cool, dry, well-ventilated area; temperature ≤ 30 °C; keep from light and tightly closed; away from ignition sources and heat.

使用防爆型电气与工具,采取防静电措施(接地/跨接);禁止使用易产生火花的机械与工具,禁止使用压缩空气装卸。

Use explosion-proof equipment; prevent static discharge (ground/bond); no spark-producing tools or machinery; no compressed-air transfer.

与强氧化剂(如过氧化物、硝酸)、强酸、强碱分开存放,切忌混储;搬运轻装轻卸,防止包装破损。

Segregate from strong oxidizers (e.g. peroxides, nitric acid), strong acids and strong bases; handle gently to avoid package damage.

操作人员佩戴防护手套、护目镜与防毒面具,加强通风,避免吸入蒸气或皮肤接触。

Wear gloves, goggles and respirator; ensure good ventilation; avoid vapor inhalation and skin contact.


  1. Packaging

200 L 钢桶(净含量约 160 kg,依密度)。

200 L steel drum (≈160 kg net, by density).

IBC 吨桶(如 800 / 1000 kg)。

IBC tote (e.g., 800 / 1000 kg).

槽车散装(可按客户需求提供)。

Bulk road tanker (available on request).

注意:容器须符合 UN 危险货物包装要求(第3类易燃液体,PG III)。

Note: containers must meet UN hazardous-goods packaging requirements (Class 3, PG III).


  1. Shelf Life

在原包装、密闭、阴凉干燥(建议 ≤30 °C,避光)条件下,保质期通常 24 个月(以 COA/标签为准)。

Typically 24 months under original sealed packaging, cool and dry (≤30 °C, away from light); subject to COA/label.


  1. Safety Note

GHS 危险性分类:易燃液体 类别3(H226 易燃液体和蒸气);皮肤刺激 类别2(H315 引起皮肤刺激);严重眼损伤 类别1(H318 造成严重眼损伤);特异性靶器官毒性-单次接触 类别3(H335 呼吸道刺激;H336 可能引起昏睡或眩晕);吸入危害 类别2(H305 吞咽及进入呼吸道可能有害);急性毒性(经口/经皮)类别5(H303+H313)。信号词:危险;象形图:GHS02 + GHS05 + GHS07。

GHS classification: Flammable liquids Cat. 3 (H226); Skin irritation Cat. 2 (H315); Serious eye damage Cat. 1 (H318); STOT-SE Cat. 3 (H335 respiratory irritation; H336 drowsiness/dizziness); Aspiration hazard Cat. 2 (H305); Acute tox. oral/dermal Cat. 5 (H303+H313). Signal word: Danger; pictograms: GHS02 + GHS05 + GHS07.

本品易燃,蒸气与空气可形成爆炸性混合物,比空气重,可沿地面扩散至引火源并回火;吞咽及进入呼吸道可能有害;对皮肤、眼睛有刺激性(详见独立安全数据表 SDS)。

Flammable; vapour may form explosive mixtures with air, is heavier than air and can travel to ignition sources and flash back; harmful if swallowed and enters airways; irritant to skin and eyes (see separate SDS).

灭火用抗醇泡沫、干粉、二氧化碳或水雾;禁用直流水。燃烧时可能释放一氧化碳(CO)等有毒气体。

Use alcohol-resistant foam, dry powder, CO2 or water spray; avoid water jet. Combustion may release toxic gases such as carbon monoxide (CO).

毒性 Toxicity:大鼠经口 LD50 ≈ 2460 mg/kg(低毒);兔经皮 LD50 ≈ 2460 mg/kg。职业接触限值 OEL:TWA 50 ppm(约 150 mg/m³);IDLH 8000 ppm。

Toxicity: rat oral LD50 ≈ 2460 mg/kg (low toxicity); rabbit dermal LD50 ≈ 2460 mg/kg. OEL: TWA 50 ppm (≈150 mg/m³); IDLH 8000 ppm.

运输信息 Transport:UN 1212,第3类 易燃液体,包装类别 III;正确运输名称:ISOBUTANOL(IMDG / IATA / ADR 一致)。

Transport: UN 1212, Class 3 flammable liquid, Packing Group III; proper shipping name: ISOBUTANOL (IMDG / IATA / ADR consistent).

法规 Regulatory:属易燃液体(第3类,UN 1212 PG III)管理;德国水危害等级 WGK 1。具体是否列入《危险化学品目录》及监管条件,请以最新版目录与目的国法规为准。

Regulatory: managed as a flammable liquid (Class 3, UN 1212 PG III); WGK 1 (Germany water-hazard class). Whether listed in the Catalogue of Hazardous Chemicals and the exact control conditions are subject to the latest catalog edition and destination-country regulations.


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。

The specifications listed are typical reference values for industrial 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.

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.