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
推荐产品
訊號詞
Danger
危險分類
Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Self-react. C
安全危害
儲存類別代碼
4.1A - Other explosive hazardous materials
水污染物質分類（WGK）
WGK 2
閃點（°F）
122.0 °F
閃點（°C）
50 °C
個人防護裝備
dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
商品
To keep pace with Moore′s Law, there is a continuing need in the semiconductor industry to achieve higher circuit density in microelectronic devices.
An article regarding common FAQs for initiators and stabilizers.
RAFT（可逆加成断裂链转移）聚合是一种可逆的去活化自由基聚合（RDRP），是给自由基聚合赋予活性的通用方法之一。
RAFT polymerization offers living characteristics to radical polymerization, contributing versatility to reversible deactivation radical polymerization methods.
实验方案
RAFT polymerization offers precise control, enabling tailored synthesis of complex polymer structures.
RAFT（可逆加成-断裂链转移）是一种活性自由基聚合反应，在有适合的连转移（RAFT）试剂存在下发生的非传统的取代单体自由基聚合反应。
We present an article about RAFT, or Reversible Addition/Fragmentation Chain Transfer, which is a form of living radical polymerization.
Polymerization via ATRP procedures demonstrated by Prof. Dave Haddleton's research group at the University of Warwick.
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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?
-
-
Wie lange ist der Artikel 441090-25G, 2,2′-Azobis(2-methylpropionitril) nach Herstellung haltbar?
1 answer-
This product is not assigned an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one-year warranty from the date of shipment.
For more information, you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.
Helpful?
-
-
How do you dispose of 2,2′-Azobis(2-methylpropionitrile)?
1 answer-
Please refer to the SDS for disposal recommendations. Note that methods of disposal are listed in section 6.3. Waste material must be disposed of in accordance with the national and local regulations.
Consult with facility or municipal EHS authorities to assure proper guidelines are followed. See the link below to review the SDS:https://www.sigmaaldrich.com/sds/aldrich/441090
Helpful?
-
-
At what temperature does Product 441090, 2,2´-Azobis(2-methylpropionitrile)98% AIBN, give off free radicals?
1 answer-
Free radicals will given off at temperatures above 40oC. Thermal decomposition of the product gives off free radicals which makes this an efficient polymerization initiator.
Helpful?
-
-
Does Product 441090, 2,2´-Azobis(2-methylpropionitrile) 98% AIBN, contain an inhibitor?
1 answer-
No, there is no inhibitor added to this product.
Helpful?
-
-
What is Product 441090, 2,2´-Azobis(2-methylpropionitrile) 98% AIBN soluble in?
1 answer-
Per the the chemicals encyclopedia published by the Royal Society of Chemistry, 13th Edition, it is soluble in methanol 1.8g / 100ml at 0oC, 4.96g / 100ml at 20oC, and 16.06g / 100ml at 40oC. It is also soluble in ethanol 0.5g / 100ml at 0oC, 2.04g / 100ml at 20oC, and 7.15g / 100ml at 40oC. Please Note: Dissolving this product in acetone results in a violent reaction and may cause an explosion.
Helpful?
-
-
What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
Helpful?
-
Active Filters
我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.
联系技术服务部门
