• 异丙醚,Chongqing Guangyi Chemical Co., Ltd,异丙醚
  • 异丙醚,Chongqing Guangyi Chemical Co., Ltd,异丙醚

异丙醚 Diisopropyl Ether (Isopropyl Ether, DIPE)

No.CAS 108-20-3
Diisopropyl ether (DIPE) is a colorless, clear, free-flowing flammable liquid with a characteristic ethereal odor; an acyclic ether of two isopropyl groups ((CH3)2CHOCH(CH3)2). Slightly soluble in water (~9 g/L at 20 C), miscible with ethanol, ether, benzene, chloroform, acetone, isopropanol and most organic solvents; forms azeotropes with water, isopropanol and acetone. Fairly stable under neutral/basic conditions; the C-O ether bond hydrolyzes readily under acidic conditions.
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  • 异丙醚,Chongqing Guangyi Chemical Co., Ltd,异丙醚

Description

  1. 产品概述 1. Product Overview

异丙醚(DIPE)是无色透明、流动性好的易燃液体,具有醚类特殊气味;是由两个异丙基通过醚键连接的无环醚((CH3)2CHOCH(CH3)2)。微溶于水(约 9 g/L,20 ℃),可与乙醇、乙醚、苯、氯仿、丙酮、异丙醇等多数有机溶剂混溶;能与水、异丙醇、丙酮等形成共沸物。在中性/碱性条件下较稳定,酸性条件下醚键易水解断裂。

Diisopropyl ether (DIPE) is a colorless, clear, free-flowing flammable liquid with a characteristic ethereal odor; an acyclic ether of two isopropyl groups ((CH3)2CHOCH(CH3)2). Slightly soluble in water (~9 g/L at 20 C), miscible with ethanol, ether, benzene, chloroform, acetone, isopropanol and most organic solvents; forms azeotropes with water, isopropanol and acetone. Fairly stable under neutral/basic conditions; the C-O ether bond hydrolyzes readily under acidic conditions.

本品最危险的特性是长期储存或受空气、光照、受热后易生成爆炸性过氧化物(EUH019/R19),因此商品均添加抗氧化剂类稳定剂(BHT 或氢醌)。工业上主要由异丙醇在酸催化(硫酸或阳离子交换树脂)下脱水制得。主要用途:制药工业中青霉素等抗生素的萃取溶剂、生物碱(尼古丁)提取;油品脱蜡溶剂;乙酸/丁酸稀溶液的浓缩回收;湿法腈纶工艺中硫氰酸钠的萃取剂;电子工业光刻胶稀释与半导体清洗;气相/液相色谱标准物质;亦可作为高辛烷值汽油添加剂。

Its most hazardous feature is the tendency to form explosive peroxides on prolonged storage or exposure to air, light and heat (EUH019/R19), so commercial grades are stabilized with antioxidants (BHT or hydroquinone). Industrially produced mainly by dehydration of isopropanol under acid catalysis (sulfuric acid or cation-exchange resin). Main uses: extraction solvent for antibiotics such as penicillin and for alkaloids (nicotine) in pharma; dewaxing solvent for paraffin-base oils; recovery/concentration of dilute acetic/butyric acid; extractant for sodium thiocyanate in wet-process acrylic fiber; photoresist diluent and semiconductor cleaning in electronics; GC/LC standard; high-octane gasoline additive.


产品标识 / Product Identification

CAS 登记号 CAS No.

108-20-3

分子式 Molecular formula

C6H14O(亦写作 (CH3)2CHOCH(CH3)2)

分子量 Molecular weight

102.17 g/mol(102.18)

EINECS 号 EINECS No.

203-560-6

MDL 号 MDL No.

MFCD00008880

RTECS 号 RTECS

TZ5425000

Beilstein 号 Beilstein

1731256

PubChem CID

7914(经 PubChem 按 CAS 108-20-3 核验

verified via PubChem by CAS 108-20-3)

UN 编号 UN Number

1159(第3类 易燃液体,包装类别 II

Class 3 flammable liquid, Packing Group II)

HS 编码 HS Code

29091990(中国 10 位 2909199090

China 10-digit 2909199090;属品目 2909 醚下「其他无环醚及其卤化等衍生物」,子目 2909199090.104 即「异丙醚」;非 2909199010 八氯二丙醚/二氯异丙醚,非 29091910 欧盟/国际拆解)

别名 Synonyms

异丙醚;二异丙醚;二异丙基醚;异丙基醚;Diisopropyl ether; DIPE; Isopropyl ether; 2-Isopropoxypropane; 2,2'-Oxybispropane; 2-propan-2-yloxypropane

  1. 产品规格(工业级,含稳定剂,典型值) 2. Specifications (Industrial Grade, Stabilized, Typical)

注:商品通常加 50–200 ppm BHT(或氢醌)作稳定剂抑制过氧化物生成;试剂/电子级典型纯度更高(≥99.5 % / ≥99.9 %)。以下为工业级典型值,以 COA 为准。

Note: commercial grades typically contain 50-200 ppm BHT (or hydroquinone) stabilizer to suppress peroxide formation; reagent/electronic grades have higher typical purity (>=99.5% / >=99.9%). Industrial typicals below, per-COA applies.

项目 Item

指标 Specification

测试方法 Test Method

异丙醚含量 Assay (GC)

≥ 99.0 %(优级 ≥ 99.5 % / reagent ≥ 99.5 %)

GB/T 9722 / ASTM D4420

外观 Appearance

无色透明液体,无机械杂质,醚类气味 / Colorless clear liquid, free of mechanical impurities, ethereal odor

Visual

水分 Water (KF)

≤ 0.10 %

GB/T 6283 / ASTM E1064

酸度 Acidity (as acetic acid)

≤ 0.005 %

GB/T 9736 / titration

过氧化物 Peroxides (as H2O2)

≤ 0.001 %(以 H2O2 计 / as H2O2)

GB/T 5538 / iodometric

蒸发残渣 Residue on evaporation

≤ 0.005 %(试剂级 ≤ 0.01 %)

GB/T 6324.2

密度 Density (20 °C)

0.722 – 0.726 g/cm³

GB/T 4472 / ASTM D4052

馏程 Distillation range (≥95% v/v)

67.5 – 69.5 °C

GB/T 7534 / ASTM D1078

折射率 Refractive index (n20/D)

1.366 – 1.368

GB/T 614 / ASTM D1218

色度 Color (APHA)

≤ 25

GB/T 3143 / ASTM D1209


  1. 理化性质 3. Physical & Chemical Properties

分子式 Molecular formula

C6H14O((CH3)2CHOCH(CH3)2)

分子量 Molecular weight

102.17 g/mol

外观 Appearance

无色透明液体,醚类特殊气味

Colorless clear liquid, characteristic ethereal odor

熔点 Melting point

-85.5 °C

沸点 Boiling point

68 – 69 °C(lit.;文献 68.3 – 68.4 °C,@ 760 mmHg)

密度 Density (20 – 25 °C)

0.722 – 0.726 g/cm³(@20 °C);Sigma 0.725 g/mL @25 °C

相对蒸气密度 Vapor density (air=1)

3.5

蒸气压 Vapor pressure

约 120 mmHg(≈ 160 hPa)@ 20 °C(ChemicalBook 119 mmHg)

闪点 Flash point (closed cup)

约 -28 ~ -29 °C(闭杯 CC;Sigma -29 °C

-20.2 °F)→ GHS 易燃液体 类别2 / H225 Cat.2)

自燃温度 Auto-ignition temp.

约 405 – 442 °C(以 SDS 为准

literature range; per SDS)

爆炸极限 Explosive limits (air, v/v)

约 1.4 %(LEL)至 21 %(UEL)(Sigma 记 1 – 21 %)

折射率 Refractive index (n20/D)

1.367(文献 1.366 – 1.368)

pH 值(纯品, 20 °C)

约 7(中性

neutral)

分配系数 log Pow (n-辛醇/水)

约 1.82(@ 25 °C)

溶解度 Solubility

微溶于水,约 9 g/L(20 °C)即 0.5 – 0.9 g/100 mL;与乙醇、乙醚、苯、氯仿、丙酮等多数有机溶剂混溶

Slightly soluble in water (~9 g/L, 20 C); miscible with ethanol, ether, benzene, chloroform, acetone and most organic solvents

粘度 Viscosity (20 °C)

约 0.37 mPa·s

介电常数 Dielectric constant (25 °C)

约 3.9

相对极性 Relative polarity

2.2

稳定剂 Stabilizer

BHT(二叔丁基对甲酚)或氢醌,约 50 – 200 ppm(抑制过氧化物生成

to suppress peroxide formation)


  1. 应用领域 4. Applications

制药与萃取:青霉素等抗生素提炼的萃取溶剂;生物碱(尼古丁等)提取;药物合成反应介质。

Pharmaceutical & extraction: extraction solvent for antibiotics such as penicillin; extraction of alkaloids (e.g., nicotine); reaction medium for drug synthesis.

化工分离:石蜡基油品脱蜡溶剂;乙酸、丁酸稀溶液的浓缩回收;湿法腈纶工艺中硫氰酸钠的萃取剂。

Chemical separation: dewaxing solvent for paraffin-base oils; concentration/recovery of dilute acetic and butyric acid; extractant for sodium thiocyanate in wet-process acrylic fiber.

电子工业:电子级异丙醚用于光刻胶稀释、显影液及半导体元件清洗。

Electronics: electronic-grade DIPE for photoresist dilution, developer and semiconductor cleaning.

分析与燃料:气相/液相色谱标准物质与流动相;高辛烷值与抗冻性能,可作汽油掺合剂(含氧添加剂)。

Analytical & fuel: GC/LC standard and mobile phase; high-octane, antifreeze fuel additive (oxygenated blending component).


  1. 储存与操作 5. Storage & Handling

阴凉(建议 ≤ 30 °C)、通风、干燥库房;远离火源、热源与引火源,防静电积聚;密封、避光保存。本品极易生成爆炸性过氧化物,须添加并维持有效稳定剂(BHT/氢醌)。

Store in a cool (recommended <= 30 C), well-ventilated, dry area; away from ignition sources, heat and static accumulation; sealed and protected from light. Strong peroxide former — maintain effective stabilizer (BHT/hydroquinone).

使用前及每次蒸馏前必须检测过氧化物含量(碘量法/试纸),如超标须脱除(如通过活性氧化铝柱或碱性洗涤)后方可使用;严禁蒸干或接近干涸,否则残留过氧化物可剧烈爆炸。

Test peroxide content (iodometric / test strip) before each use and before any distillation; if above limit, remove (e.g., active-alumina column or alkaline wash) before use. Never distill to dryness — residual peroxides can detonate violently.

操作区域使用防爆电气与设备;操作人员穿戴防静电服、耐溶剂手套、护目镜;加强通风,避免吸入蒸气(可致嗜睡/眩晕)。

Use explosion-proof electricals and equipment in the operating area; operators wear anti-static clothing, solvent-resistant gloves and goggles; ensure ventilation; avoid vapor inhalation (drowsiness/dizziness).

禁忌:与强氧化剂(如过氧化物、硝酸)、强酸分开存放,切忌混储;蒸气比空气重(≈3.5),可沿地面扩散遇明火回燃。容器宜用碳钢/不锈钢,避免长期接触易引发反应的材质。

Incompatibilities: segregate from strong oxidizers (e.g., peroxides, nitric acid) and strong acids; vapour is heavier than air (≈3.5) and can travel to ignition sources. Prefer carbon-steel/stainless containers; avoid materials that promote reaction on prolonged contact.


  1. 包装 6. Packaging

200 L(约 140 kg 净重)镀锌铁桶 / 钢桶,含稳定剂。

200 L drum (≈140 kg net), galvanized-iron / steel drum, stabilized.

IBC 吨桶(如 800 / 1000 kg)。

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

散装:ISO TANK 罐箱(可按客户需求提供)。

Bulk: ISO TANK (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 II)。

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


  1. 保质期 7. Shelf Life

在原包装、密闭、阴凉干燥(建议 ≤ 30 °C,避光、加稳定剂)条件下,建议保质期不超过 12 个月;因极易生成过氧化物,开封后应尽快使用,并定期(建议每 3 个月)检测过氧化物含量,超标即处理。

Recommended shelf life not exceeding 12 months under original sealed packaging, cool and dry (<= 30 C, away from light, with stabilizer). Because it readily forms peroxides, use promptly after opening and test peroxide content periodically (suggest every 3 months); treat if above limit.


  1. 安全提示 8. Safety Note

GHS 危险性分类(Sigma-Aldrich / Merck、ChemicalBook、Scharlab、kepuchina 共识):易燃液体 类别2(H225 高度易燃液体和蒸气);特异性靶器官毒性-单次接触 类别3(H336 可引起嗜睡或眩晕);补充危险 EUH019(可能形成爆炸性过氧化物);EUH066(反复接触可能引起皮肤干裂)。信号词:危险(Danger);象形图:GHS02 + GHS07。注:部分 SDS(如 ChemicalBook)另列 H316 皮肤刺激、H319 严重眼刺激、H361 生殖毒性、H371 特定靶器官毒性、H335 呼吸道刺激、H412 水生危害,完整 SDS 以目的国法规为准。

GHS classification (Sigma-Aldrich/Merck, ChemicalBook, Scharlab, kepuchina consensus): Flammable liquids Cat. 2 (H225 highly flammable liquid and vapour); STOT-SE Cat. 3 (H336 may cause drowsiness or dizziness); supplementary EUH019 (may form explosive peroxides); EUH066 (repeated exposure may cause skin dryness/cracking). Signal word: Danger; pictograms: GHS02 + GHS07. Note: some SDS (e.g., ChemicalBook) additionally list H316, H319, H361, H371, H335, H412; full SDS per destination regulation.

⚠ 过氧化物风险(最重要):本品在空气中、光照与受热下长期存放会生成可爆炸的过氧化物,蒸馏至干或受撞击/加热时可剧烈爆炸。商品含稳定剂仍不能杜绝;使用前必须检测过氧化物,超标的须脱除,且严禁蒸干。

⚠ Peroxide risk (MOST IMPORTANT): forms EXPLOSIVE peroxides on prolonged exposure to air, light and heat; can detonate violently if distilled to dryness or on impact/heating. Stabilizer does not fully prevent this; test before use, remove if above limit, never distill to dryness.

灭火用抗醇泡沫、干粉、二氧化碳或砂土;燃烧可能释放一氧化碳等有毒气体;用水灭火无效,禁止直流水(易飞溅扩散)。

Use alcohol-resistant foam, dry powder, CO2 or sand; combustion may release toxic gases such as carbon monoxide; water is ineffective — do not use straight water streams.

毒性 Toxicity:低毒。大鼠经口 LD50 8470 mg/kg(kepuchina/ChemicalBook/Scharlab 一致);兔经皮 LD50 20000 mg/kg;大鼠吸入 LC50 162000 mg/m³(4 h)。职业接触限值:ACGIH TLV-TWA 250 ppm(1045 mg/m³);OSHA PEL-TWA 500 ppm(2100 mg/m³);NIOSH REL-TWA 500 ppm;IDLH 1400 ppm(约 10% LEL)。对水体危害等级 WGK 1(德国)。

Toxicity: low toxicity. Rat oral LD50 8470 mg/kg (kepuchina/ChemicalBook/Scharlab consistent); rabbit dermal LD50 20000 mg/kg; rat inhalation LC50 162000 mg/m3 (4 h). OELs: ACGIH TLV-TWA 250 ppm (1045 mg/m3); OSHA PEL-TWA 500 ppm (2100 mg/m3); NIOSH REL-TWA 500 ppm; IDLH 1400 ppm (~10% LEL). Water hazard WGK 1 (Germany).

运输信息 Transport:UN 1159,第3类 易燃液体,包装类别 II;正确运输名称 DIISOPROPYL ETHER(ADR/RID、IMDG、IATA-DGR 一致;ERG 2024 指南 130 易燃液体)。

Transport: UN 1159, Class 3 flammable liquid, Packing Group II; proper shipping name DIISOPROPYL ETHER (ADR/RID, IMDG, IATA-DGR consistent; ERG 2024 Guide 130 flammable liquid).

法规 Regulatory:属第3类易燃液体管理;EINECS 203-560-6;REACH 已注册;TSCA 已列;列入中国危险化学品目录。

Regulatory: managed as Class 3 flammable liquid; EINECS 203-560-6; REACH registered; TSCA listed; listed in China's hazardous-chemical catalogue.


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.