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398039

Sigma-Aldrich

1,2-丙二醇

ACS reagent, ≥99.5%

别名:

1,2-PDO, 丙二醇

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About This Item

线性分子式:
CH3CH(OH)CH2OH
CAS号:
57-55-6
分子量:
76.09
Beilstein:
1340498
EC 号:
200-338-0
MDL编号:
MFCD00064272
UNSPSC代码:
12352100
PubChem化学物质编号:
24864713
NACRES:
NA.21
价格与库存信息目前不能提供

等级

ACS reagent

质量水平

200

蒸汽密度

2.62 (vs air)

蒸汽压

0.08 mmHg ( 20 °C)

方案

≥99.5%

表单

liquid

自燃温度

779 °F

expl. lim.

12.5 %

杂质

≤0.0005 meq/g Titr. acid
≤0.2% water

灼烧残渣

≤0.005%

颜色

APHA: ≤10

折射率

n20/D 1.432 (lit.)

沸点

187 °C (lit.)

mp

−60 °C (lit.)

密度

1.036 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl-): ≤1 ppm

官能团

hydroxyl

SMILES字符串

CC(O)CO

InChI

1S/C3H8O2/c1-3(5)2-4/h3-5H,2H2,1H3

InChI key

DNIAPMSPPWPWGF-UHFFFAOYSA-N

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相关类别

一般描述

丙二醇是一种1,2-链烷二醇[1] ，它是工业上重要的化学品。由于需求增加，已提出许多环保方法主要使用廉价的甘油作为其合成的起始材料。[1][2][3][4][5][6]它是合成中间体、结构单元和聚合物的原料。[7]

应用

丙二醇可用于以下过程：
  • 碳酸丙烯酯的环保合成法。[8]
  • 通过环保催化氧化生产乳酸。[9][10]
  • 通过催化脱水生成丙醛。[11]

其他说明

货号398039-4X2L的产品即将停产。请订购398039-2L单瓶装，因为其物理参数与上述产品本质相同。

储存分类代码

10 - Combustible liquids

WGK

WGK 1

闪点(°F)

219.2 °F - closed cup

闪点(°C)

104 °C - closed cup

个人防护装备

Eyeshields, Gloves

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCW8232
WXBF1261V
WXBD8323V
WXBD8680V
WXBD9547V

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丙二醇 ≥99.5% (GC), FCC, FG

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丙二醇

1,2-Propanediol

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PX1690

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(R)-(-)-1,2-丙二醇 96%

Sigma-Aldrich

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(R)-(-)-1,2-丙二醇

丙二醇 British Pharmacopoeia (BP) Reference Standard

BP868

丙二醇

1,3-丙二醇 United States Pharmacopeia (USP) Reference Standard

USP

1570483

1,3-丙二醇

丙二醇 United States Pharmacopeia (USP) Reference Standard

USP

1576708

丙二醇

Microwave assisted process intensification of lipase catalyzed transesterification of 1, 2 propanediol with dimethyl carbonate for the green synthesis of propylene carbonate: Novelties of kinetics and mechanism of consecutive reactions.
Yadav GD, et al.
Chemical Engineering Journal, 281, 199-208 (2015)
Reactive Extraction of 1, 3-Propanediol with Aldehydes in the Presence of a Hydrophobic Acidic Ionic Liquid as a Catalyst.
Matsumoto M, et al.
Solvent Extraction Research and Development, Japan, 22(2), 209-213 (2015)
Sustainability metrics for a fossil-and renewable-based route for 1, 2-propanediol production: A comparison.
Marinas A, et al.
Catalysis Today, 239, 31-37 (2015)
A novel Pd/C-catalyzed conversion of glucose to 1, 2-propanediol by water splitting with Zn.
Wang, J, et al.
Royal Society of Chemistry Advances, 5(63), 51435-51439 (2015)
Catalytic Dehydration of 1,2-Propanediol into Propanal over Ag-Modified Silica-Alumina.
Sun D, et al.
Chemistry Letters (Jpn), 43(4), 450-452 (2014)
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Questions

1–4 of 4 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  3. What is the concentration of the stock bottle?

    1 answer

    1. This product is supplied as a neat or pure liquid with a literature density of 1.036 g/mL and a molecular weight of 76.09 g/mol. The minimum purity is 99.50 %, thus the molarity will vary slightly from lot to lot. The molarity can range from 13.5 M (99.50 %) to 13.6 M (100%).

      Helpful?

  4. Il propandiolo in soluzione al 30% favorisce o inibisce la crescita batterica in particolare di Pseudomonas aeruginosa? Grazie

    1 answer

    1. This product has not been tested for growth promotion or inhibition at any concentration. These properties would have to be determined by the end user. See the link below to a publication that may be helpful.
      https://biotechnologyforbiofuels.biomedcentral.com/articles/10.1186/s13068-021-02067-w

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