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重要文件

86710

Sigma-Aldrich

乙醇钛

同義詞:

原钛酸四乙酯, 钛酸乙酯

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About This Item

線性公式:
Ti(OC2H5)4
CAS號碼:
分子量::
228.11
Beilstein:
3678992
MDL號碼:
分類程式碼代碼:
12161600
PubChem物質ID:
NACRES:
NA.22
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形狀

liquid

品質等級

反應適用性

core: titanium
reagent type: catalyst

雜質

≤3% tetraisopropyl orthotitanate (NMR)

折射率

n20/D 1.505 (lit.)
n20/D 1.509

bp

150-152 °C/10 mmHg (lit.)

密度

1.088 g/mL at 25 °C (lit.)

SMILES 字串

CCO[Ti](OCC)(OCC)OCC

InChI

1S/4C2H5O.Ti/c4*1-2-3;/h4*2H2,1H3;/q4*-1;+4

InChI 密鑰

JMXKSZRRTHPKDL-UHFFFAOYSA-N

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應用

乙醇钛(IV)可用于:
  • 作为活化剂和脱水剂,通过(S)-(+)-p-甲苯磺酰胺与醛和酮的缩合,形成亚磺酰亚胺。[1]
  • 作为Ti4+ 离子源形成丙烯酸钛(Ⅳ)与甲基丙烯酸的配合物。[2]
  • 作为催化剂,通过酯交换反应合成位阻醇酯。[3]

注意

在储存期间,会形成凝胶状残余物,在加热至40℃后可溶解

象形圖

FlameExclamation mark

訊號詞

Warning

危險聲明

危險分類

Eye Irrit. 2 - Flam. Liq. 3

儲存類別代碼

3 - Flammable liquids

水污染物質分類(WGK)

WGK 3

閃點(°F)

107.6 °F - closed cup

閃點(°C)

42 °C - closed cup

個人防護裝備

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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分析證明 (COA)

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Synthesis of sterically hindered esters via titanium catalyzed transesterification
Krasik, Pavel
Tetrahedron Letters, 39(24), 4223-4226 (1998)
Two-photon polymerization of metal ions doped acrylate monomers and oligomers for three-dimensional structure fabrication
Duan, Xuan-Ming and Sun, Hong-Bo and Kaneko, Koshiro and Kawata, Satoshi
Thin Solid Films, 453(4), 518-521 (2004)
Improved synthesis of enantiopure sulfinimines (thiooxime s-oxides) from p-toluenesulfinamide and aldehydes and ketones
Davis FA, et al.
The Journal of Organic Chemistry, 64(4), 1403-1406 (1999)
Zhihai Cao et al.
Journal of colloid and interface science, 435, 51-58 (2014-09-14)
Ag/TiO2 nanocomposites were prepared through combination of a sol-gel process of a titanium precursor in inverse miniemulsions and in situ reduction of silver ions in the "nanoreactors". The morphological investigation shows that Ag nanoparticles are mainly located on the surface
Johan Karlsson et al.
International journal of nanomedicine, 10, 4425-4436 (2015-07-18)
The osseointegration capacity of bone-anchoring implants can be improved by the use of drugs that are administrated by an inbuilt drug delivery system. However, to attain superior control of drug delivery and to have the ability to administer drugs of

Questions

1–4 of 4 Questions  
  1. Your Gravimetric Assay is listed as 20.5–21.5%, but I’ve seen 35% typically indicate 100% purity. How is this measured? Does it refer to TiO₂ after heating, or is another method used?

    1 answer
    1. The theoretical percentage of titanium present in a 100% pure compound is calculated using the ratio of titanium molecular weight to titanium(IV) ethoxide molecular weight, resulting in 21.0%. This specification is set accordingly. A titanium amount of 35% would indicate a significant presence of titanium impurity. The test method details are not disclosed, as the product is of M-Clarity quality level MQ100.

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  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

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  3. 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

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  4. 안녕하세요. 해당 제품의 specification sheet에는 gelation이 일어나며 40도 이상으로 가열하면 사라진다고 명시되어 있습니다. 제품의 인화점이 42도라고 적혀있습니다. 혹시 안전하게 가열할 수 있나요? 해당 제품은 수분에 민감하게 반응하는 것으로 알고 있는데 가열을 위해 약품통에서 꺼내는 순간 변질이 일어날 것 같습니다. 해당 제품의 gelation문제를 안전하고 변질없이 해결할 방법이 있나요?

    1 answer
    1. Yes, it can be heated above 40 °C safely. This product is packaged in an argon gas environment. It is recommended to re-dissolve the gelation under inert gas (e.g., argon) protection with gentle heating.

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