Dịch vụ quảng cáo trực tuyến, Online advertising services

Quảng cáo từ khóa, làm đẹp, thẩm mỹ , răng sứ

đội ngũ SEO chuyên nghiệp (9)  đội ngũ SEO an toàn (9)  từ khóa google (9)  social bookmark (1)  seo website vn (1)  seo web vn (1)  seo web (1)  seo tu khoa (1)  seo backlink (1)  online marketing (9)  dịch vụ SEO từ khóa website an toàn (1)  dịch vụ SEO từ khóa an toàn (11)  dịch vụ SEO từ khóa (9)  dich vu seo tu khoa (9)  dich vu seo an toan (9)  dich vu SEO web SEO an toàn (9)  Tips seo (1)  Thứ hạng từ khóa (9)  Thư viện sách điện tử (1)  Thư viện sách ebook miễn phí (1)  The Googlebot guide (9)  Team SEO chuyên nghiệp (9)  Team SEO an toàn (9)  Sách điện tử miễn phí (2)  Sách ebook miễn phí (1)  Seo white hat (1)  Seo từ khóa (1)  Semantic seo (1)  SEOER (1)  SEO website an toàn (21)  SEO website an toan hieu qua (9)  SEO website an toan (12)  SEO web hiệu quả (9)  SEO từ khóa google (9)  SEO từ khóa an toàn (9)  SEO từ khóa (12)  SEO tu khoa google (9)  SEO tu khoa an toan (9)  SEO tu khoa (12)  SEO social bookmark (9)  SEO social (21)  SEO chuẩn an toàn (9)  SEO backlink (21)  SEO an toan (9)  SEO (1)  Paid Search Marketing (3)  Nose anchor seo (1)  Link builders (1)  Kho sách điện tử miễn phí (1)  Keywords (1)  Google seo (1)  Google quyết định Page Rank (1)  Dịch vụ quảng cáo trực tuyến (9)  Dịch vụ SEO web (9)  Dịch vụ SEO an toàn hiệu quả (9)  Dịch vụ SEO an toàn (21)  Dich vu SEO tu khoa an toan (12)  Dich vu SEO an toan hieu qua (9)  Cấu trúc url (1)  Corporate social responsibility (1)  CSR (1)  Bình minh của SEO: The Wild West Era (1)  Blogger seo (1)  AMBN (3)  6ΩΩ9lε (1)  


AMBN

https://seowebvn.net/beauty-salon/99-ambn.html

Product Data Sheet Perkadox® AMBN-gr

 

Product description 2,2'-Azodi(2-methylbutyronitrile), granules Molecular weight : 192.3 Theoretical available Nitrogen : 14.56% CAS No. : 13472-08-7 EINECS/ELINCS No. : 236-740-8 TSCA status : listed on inventory Initiator for the (co)polymerization of styrene, vinyl chloride, vinylidene chloride, acrylonitrile, acrylates and methacrylates. Specifications Appearance :

AMBN

 

White granules Assay : 98.0% min. Color (2% solution in acetone) : 20 Pt-Co max. Water : 0.5% max. Characteristics Density, 20°C : 1.11 g/cm3 Bulk density : 500-600 kg/m3 (31.2-37.4 lb/ft3 ) Melting point : 49-51°C Half-life data The reactivity of an azo initiator is usually given by its half-life (t1/2) at various temperatures. The half-life of Perkadox AMBN-gr in chlorobenzene: 0.1 hr at 104°C (219°F) 1 hr at 84°C (183°F) 10 hr at 66°C (151°F) The half-life at other temperatures can be calculated by using the following equations and constants: kd = A·e-Ea/RT Ea = 128.93 kJ/mole A = 1.38E+15 s-1 t½ = (ln2)/kd R = 8.3142 J/mole·K T = (273.15+°C) K

 

Storage

 

Due to the relatively unstable nature of azo initiators a loss of quality can be detected over a period of time. To minimize the loss of quality, AkzoNobel recommends a maximum storage temperature (Ts max.) for each azo initiator. For Perkadox AMBN-gr Ts max. = 25°C (77°F) When stored under these recommended storage conditions, Perkadox AMBN-gr will remain within the AkzoNobel specifications for a period of at least three months after delivery. Thermal stability Azo initiators are thermally unstable substances which may undergo selfaccelerating decomposition. The lowest temperature at which selfaccelerating decomposition may occur with a substance in the packaging as used for transport is the Self-Accelerating Decomposition Temperature (SADT). The SADT is determined on the basis of the Heat Accumulation Storage Test. For Perkadox AMBN-gr SADT : 45°C (113°F) Emergency temperature (Tem) : 40°C (104°F) Control temperature (Tc) : 35°C ( 95°F) The Heat Accumulation Storage Test is a recognized test method for the determination of the SADT of organic peroxides (see Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria - United Nations, New York and Geneva).

 

Major decomposition products Nitrogen, 2,3-Diethyl-2,3-dimethylbutanedinitrile, 2-Methylbutanenitrile, 2-Methyl-2-butenenitrile. Packaging and transport The standard packaging is a 5 x 5 kg cardboard box and a fiber drum for 50 kg initiator. Both packaging and transport meet the international regulations. For the availability of other packed quantities contact your AkzoNobel representative. Perkadox AMBN-gr is classified as self-reactive solid type D, temperature controlled, Division 4.1; UN 3236. Safety and handling Keep containers tightly closed. Store and handle Perkadox AMBN-gr in a dry well-ventilated place away from sources of heat or ignition and direct sunlight. Never weigh out in the storage room. Avoid contact with reducing agents (e.g. amines), acids, alkalis and heavy metal compounds (e.g. accelerators, driers and metal soaps). Please refer to the Safety Data Sheet (SDS) for further information on the safe storage, use and handling of Perkadox AMBN-gr. This information should be thoroughly reviewed prior to acceptance of this product. The SDS is available at www.akzonobel.com/polymer.

 

Applications

 

Perkadox AMBN-gr can be used successfully for bulk, solution, suspension and emulsion polymerization of a wide variety of monomers, such as styrene, vinyl chloride, vinylidene chloride, acrylonitrile, acrylates and methacrylates. Perkadox AMBN-gr does not form oxygenated residues and does not cause oxidative degradation of pigmented or dyed polymer systems. For this reason, the color stability of transparent, dyed polymers, such as polymethylmethacrylate, is improved. In acrylic paint manufacture, excessive grafting can be a problem when using peroxides. Because the cyano sec-butyl radical from Perkadox AMBN-gr shows less tendency to abstract hydrogen from a polymer chain than oxygen centered radicals Perkadox AMBN-gr allows the production of resins with a low degree of grafting. Figure 1 shows the conversion/time curve for the solvent polymerization of methylmethacrylate (MMA) initiated by Perkadox AMBN-gr. Figure 1. Solvent polymerization of MMA by Perkadox AMBN-gr Solvent : toluene MMA : 65 wt % Initiator concentration : 6 mmol/l on MMA Temperature : 70°C Perkadox AMBN-gr may be used as a replacement of Perkadox AIBN [2,2'-Azodi(isobutyronitrile)] where its greater solubility offers a significant advantage. The solubility of Perkadox AMBN-gr in a variety of organic solvents is shown in Table 1. 0 1 2 3 4 5 6 7 8 9 10 10 0 20 30 40 50 60 70 90 80 100 Conversion (%)

 

Table 1. Solubility of Perkadox AMBN-gr in solvents, solubility (g) per 100 gram at 25°C Perkadox AMBN-gr Acetone Methanol Ethanol Isopropanol Toluene Ethylacetate Heptane Water >150 160 75 83 >150 >100 2.8 <0.1 Perkadox is a registered trademark of Akzo Nobel Chemicals B.V. or affiliates in one or more territories.

 

https://seowebvn.net  AMBN, Trắc Nghiệm Trực Tuyến, Download Tài Liệu, Hỏi Đáp online, Tin Giáo Dục, khảo sát online, test online survey, tri thức loài người, báo cáo khoa học, kết quả nghiên cứu, các hiện tượng lạ của tự nhiên, bách khoa tri thức,



https://seowebvn.net AMBN, Trắc Nghiệm Trực Tuyến, Download Tài Liệu, Hỏi Đáp online, Tin Giáo Dục, khảo sát online, test online survey, tri thức loài người, báo cáo khoa học, kết quả nghiên cứu, các hiện tượng lạ của tự nhiên, bách khoa tri thức,



Related Keywords:https://seowebvn.net AMBN  Trắc Nghiệm Trực Tuyến  



Thanh toán qua Paypal : paypal.me/seowebnet      ➊ Cung cấp backlink tồn tại vĩnh viễn

                                               ➋ Giải pháp SEO từ khóa website an toàn

                                                                                ➌ Bảng giá dịch vụ SEO website an toàn

Giá trị quốc tế
• € 47.704 •
Hôm nayHôm nay104
Hôm quaHôm qua272
Trong tuầnTrong tuần1027
Trong thángTrong tháng5513
Tất cảTất cả558452
Cao nhất 03-31-2020 : 2973
34.231.21.83
Thành viên 1
Khách 5
Our website is protected by DMC Firewall!