少妇呻吟白浆高潮啪啪69,少妇性欢1一18章,麻豆乱码国产一区二区三区,成人网站免费大全日韩国产,久久久影视文化传媒有限公司

Molecular Structure:

Product description: Chemical name: 2,2'-azobis[2-methylpropionamidine] dihydrochloride CAS No.: 2997-92-4 Molecular Formula: C8H20N6CI2 Relative Molecular weight: 271.19 Chemistry Category: Initiator, soluble in water, slightly soluble in methanol, insoluble in toluene, decomposition in case of light and heat. Component, shapes and uses: Main components: carbon, hydrogen, nitrogen, Cl Assay: ≥98% Appearance: white powder Uses: The product is water soluble azo Initiator, mainly used as the polymerization Initiator of polyacrylamide, polyacrylic acid, polyethylene amine polymer. Product Features: minimal dosage, low temperature, complete reaction, safe, easy to storage and operation, etc. Storage Precautions: Stored in a cool, dry and ventilated place, maximum temperature below 20°C, away from fire and heat.No mix with oxidizing and reducing agents. Storage period should be not more than six months. Handle gently, to prevent packaging is damaged, pay attention to personal protection. Technical index: Item Index Appearance white to light yellow powder Assay,% ≥98 Range of Melting Point 172-173°C Activation energy 124Kj/mol Half-life of 10 hours 56°C Ash ≤1% Heavy Metal ≤50ppm Packing: cardboard drum, net weight 20KG.