• 碳酸二乙酯 Diethyl carbonate (DEC),Chongqing Guangyi Chemical Co., Ltd,碳酸二乙酯 Diethyl carbonate (DEC)
  • 碳酸二乙酯 Diethyl carbonate (DEC),Chongqing Guangyi Chemical Co., Ltd,碳酸二乙酯 Diethyl carbonate (DEC)

碳酸二乙酯 Diethyl carbonate (DEC)

No.CAS 105-58-8
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  • 碳酸二乙酯 Diethyl carbonate (DEC),Chongqing Guangyi Chemical Co., Ltd,碳酸二乙酯 Diethyl carbonate (DEC)

Description

  1. Product Overview

碳酸二乙酯(碳酸乙酯,DEC)为无色透明、低黏度液体,具有微弱醚样气味,是低毒、环境友好的碳酸酯类溶剂与有机合成中间体。微溶于水,与醇、醚、酮、酯、芳烃等多数有机溶剂互溶。

Diethyl carbonate (DEC, ethyl carbonate) is a colorless, clear, low-viscosity liquid with a mild ethereal odor. It is a low-toxicity, environment-friendly carbonate solvent and organic-synthesis intermediate. Slightly soluble in water; miscible with alcohols, ethers, ketones, esters and aromatic hydrocarbons.

广泛应用于锂离子电池电解液溶剂、医药与农药中间体、碳酰化/烷化试剂、树脂/纤维素/油脂/油漆(脱漆剂)溶剂、纺织印染助剂及塑料增塑剂等领域。

Widely used as a lithium-battery electrolyte solvent, pharma/agro intermediate, carbonylation/alkylation reagent, solvent for resins/cellulose/oils/paints (strippers), textile auxiliaries and plasticizer component.


产品标识 / Product Identification

CAS 登记号 CAS No.

105-58-8

分子式 Molecular formula

C5H10O3(或 (C2H5O)2CO)

分子量 Molecular weight

118.13 g/mol

EINECS 号 EINECS No.

203-311-1

MDL 号 MDL No.

MFCD00009107

RTECS 号 RTECS

YE1050000

Beilstein 号 Beilstein

956591

PubChem CID

8483

UN 编号 UN Number

2366(第3类 易燃液体,包装类别 III

Class 3 flammable liquid, Packing Group III)

HS 编码 HS Code

29209090(中国 10 位 2920909090

China 10-digit 2920909090)

别名 Synonyms

碳酸二乙酯;碳酸乙酯;Diethyl carbonate; Carbonic acid diethyl ester; Ethyl carbonate; Carbonic ether; Diatol; Eufin

  1. Specifications (Industrial Grade, Typical)

注:电池级/高纯级典型纯度为 ≥99.9%(水分 ≤50 ppm),具体以 COA 为准。以下为工业级典型值。

Note: battery/high-purity grade typical purity >=99.9% (water <=50 ppm); per-COA applies. Industrial typicals below.


项目 Item

指标 Specification

测试方法 Test Method

碳酸二乙酯含量 Assay (GC)

≥ 99.0 %(电池级 ≥ 99.9 % / battery ≥ 99.9 %)

GB/T 9722 / ASTM D3545

外观 Appearance

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

Visual

水分 Water (KF)

≤ 0.10 %

GB/T 6283 / ASTM E1064

密度 Density (20 °C)

0.974 – 0.975 g/cm³

GB/T 4472 / ASTM D4052

馏程 Distillation range (≥95% v/v)

126 – 128 °C

GB/T 7534 / ASTM D1078

折射率 Refractive index (n20/D)

1.383 – 1.385

GB/T 614 / ASTM D1218

色度 Color (APHA)

≤ 20

GB/T 3143 / ASTM D1209

酸度(以 CH3COOH 计) Acidity (as CH3COOH)

≤ 0.01 %

Titration / GB/T 9736

蒸发残渣 Residue on evaporation

≤ 0.01 %

GB/T 6324.2



  1. Physical & Chemical Properties

分子式 Molecular formula

C5H10O3

分子量 Molecular weight

118.13 g/mol

外观 Appearance

无色透明液体,微弱醚样气味

Clear colorless liquid, mild ethereal odor

熔点 Melting point

-43 °C(文献约 -43 °C,个别资料 -74 °C

lit. ≈ -43 °C, some -74 °C)

沸点 Boiling point

126 °C(1013 hPa);文献 126 – 128 °C

126 °C (1013 hPa); lit. 126–128 °C

密度 Density (20 °C)

0.975 g/cm³(文献 0.974 – 0.975

lit. 0.974–0.975)

相对蒸气密度 Vapor density (air=1)

4.1(文献 4.07

lit. 4.07)

蒸气压 Vapor pressure

约 1.1 kPa(≈8.3 mmHg)@ 20 °C;79 hPa(≈59 mmHg)@ 37.8 °C(来源区间 1.1–10 mmHg

source 1.1–10 mmHg)

闪点 Flash point (closed cup)

约 25 – 33 °C(Merck/Sigma 记 25 °C CC;部分供应商记 31–33 °C;均 >23 °C → GHS 易燃液体 类别3

lit. 25–33 °C CC; H226 Cat.3)

自燃温度 Auto-ignition temp.

445 °C

爆炸极限 Explosive limits (air, v/v)

1.4 – 11.0 %(下限 1.4 %,上限 11.0 %

lower 1.4 %, upper 11.0 %)

折射率 Refractive index (n20/D)

1.384(文献 1.383 – 1.385

lit. 1.383–1.385)

分配系数 log Pow (n-辛醇/水)

1.21(25 °C

at 25 °C)

黏度 Viscosity (25 °C)

约 0.748 mPa·s

pH 值 pH (1 g/L, H2O)

约 6.3

≈ 6.3

溶解度 Solubility

微溶/极微溶于水(约 18.8 mg/L;各文献差异较大

slightly soluble, ca. 18.8 mg/L; sources vary);与醇、醚、酮、酯、芳烃等多数有机溶剂互溶 / miscible with alcohols, ethers, ketones, esters, aromatic hydrocarbons


  1. Applications

锂电池电解液:作为电解液溶剂组分,低毒、介电常数适中、电化学窗口较宽。

Lithium-battery electrolyte: solvent component; low toxicity, moderate dielectric constant, relatively wide electrochemical window.

有机合成:碳酰化/乙氧羰基化试剂、烷化试剂;用于合成酮、叔醇、杂环化合物、氨基甲酸酯及不对称烷基碳酸酯。

Organic synthesis: carbonylation/ethoxycarbonylation and alkylation reagent; synthesis of ketones, tertiary alcohols, heterocycles, carbamates and unsymmetrical alkyl carbonates.

医药与农药:苯巴比妥等医药中间体;除虫菊酯等农药中间体。

Pharma & agro: intermediate for phenobarbital and similar actives; pyrethroid pesticide intermediate.

工业溶剂:硝酸纤维素、纤维素醚、合成树脂、天然树脂、油脂及油漆(脱漆剂)的溶剂;纺织印染助剂;塑料增塑剂溶剂或直接作增塑剂;电子管阴极密封固定液。

Industrial solvent: for nitrocellulose, cellulose ethers, synthetic/natural resins, oils and paints (paint strippers); textile auxiliaries; plasticizer solvent or plasticizer; vacuum-tube cathode sealing fixative.


  1. Storage & Handling

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

Store in a cool, dry, well-ventilated area; temperature ≤30 °C; keep sealed, away from light, 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);禁止易产生火花的机械与工具,禁止用压缩空气装卸。

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

与氧化剂、还原剂、强酸、强碱分开存放,切忌混储;避免与水长期接触(会缓慢水解)。

Segregate from oxidizers, reducing agents, strong acids and strong bases; avoid prolonged contact with water (slow hydrolysis).

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(镀锌/烤漆,净重约 200 kg)。

200 L steel drum (galvanized, ≈200 kg net).

IBC 吨桶(如 800 / 1000 kg)。

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

散装:ISO TANK 罐箱或槽车(可按客户需求提供)。

Bulk: ISO TANK or 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、防潮)条件下,建议保质期 12 个月;长期储存须定期检测酸度与水分,超标不得使用。

Recommended 12 months under original sealed packaging, cool and dry (≤30 °C, away from light and moisture); for long storage periodically test acidity and water, discard if above limit.


  1. Safety Note

GHS 危险性分类(Merck/Sigma、ChemicalBook 等 SDS 共识):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);严重眼刺激 类别2(H319 引起严重眼刺激);特异性呼吸道刺激(H335 可能引起呼吸道刺激)。信号词:警告(Warning);象形图:GHS02 + GHS07。

GHS classification (Merck/Sigma, ChemicalBook SDS consensus): Flammable liquids Cat. 3 (H226); Skin irritation Cat. 2 (H315); Serious eye irritation Cat. 2 (H319); Specific target-organ toxicity (respiratory) (H335). Signal word: Warning; pictograms: GHS02 + GHS07.

本品易燃,蒸气比空气重(≈4.1),可沿地面扩散至引火源并回火;高浓度蒸气有麻醉/刺激作用,刺激眼与呼吸道。

Flammable; vapour is heavier than air (≈4.1) and can travel to ignition sources and flash back; high-concentration vapour is narcotic/irritating and irritates eyes and respiratory tract.

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(CO)等有毒气体。

Use alcohol-resistant foam, dry powder, CO2 or sand; combustion may release toxic gases such as CO.

毒性 Toxicity:低毒。LD50(大鼠经口)> 4900 mg/kg;大鼠皮下 LD50 8500 mg/kg;兔经口 LD50 > 4900 mg/kg。对水体危害:WGK 各资料不一(Merck 记 1,部分供应商记 3),以目的国法规为准。

Toxicity: low toxicity. LD50 (rat oral) > 4900 mg/kg; rat subcutaneous LD50 8500 mg/kg; rabbit oral LD50 > 4900 mg/kg. Water hazard WGK varies by source (Merck: 1; some suppliers: 3); follow destination-country regulation.

运输信息 Transport:UN 2366,第3类 易燃液体,包装类别 III;正确运输名称 DIETHYL CARBONATE(ADR/RID、IMDG、IATA-DGR 一致;ERG 127/128)。

Transport: UN 2366, Class 3 flammable liquid, Packing Group III; proper shipping name DIETHYL CARBONATE (ADR/RID, IMDG, IATA-DGR consistent; ERG 127/128).

法规 Regulatory:属易燃液体(第3类,UN 2366 PG III)管理;列入中国《危险化学品目录》(2015);具体监管条件以最新版目录与目的国法规为准。EINECS 203-311-1。

Regulatory: managed as flammable liquid (Class 3, UN 2366 PG III); listed in PRC Catalogue of Hazardous Chemicals (2015); exact control conditions subject to the latest catalog and destination-country regulations. EINECS 203-311-1.


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.