Montmorillonite, also known as microcrystalline kaolinite or gelinite, is a silicoaluminate consisting mainly of octahedral montmorillonite particles, named after the city of Montmorillonite, France, where it was first discovered. Montmorillonite is a very soft phyllosilicate mineral that forms microscopic crystals, called clays, when they precipitate out of aqueous solutions. Montmorillonite, a member of the Montmorillonite family, is a 2:1 clay, meaning it has two tetrahedral silica sheets sandwiched between a central octahedral alumina sheet. The particles are plat-like, with an average diameter of about 1μm and a thickness of 0.96nm.
Using an electron microscope to put about 25,000 times, it is necessary to "see" individual clay particles. Members of this group include soapstone. Montmorillonite is a subclass of montmorillonite, which is a 2:1 phyllosilicate mineral characterized by an octahedral Chemicalbook charge greater than 50%. Its cation exchange capacity is due to the isomorphous substitution of Mg for Al in the central alumina plane. In this case, the substitution of lower-priced cations gives nearby oxygen atoms a net negative charge that can attract cations. In contrast, Baderite is a montmorillonite with a tetrahedral charge greater than 50%, resulting from the isomorphic substitution of Al in silica. The individual crystals of montmorillonite clay are not tightly bound, so water can intervene, causing the clay to swell. The water content of montmorillonite is variable, and its volume increases greatly when it absorbs water. Chemically, it is hydrated sodium calcium-aluminosilicate magnesium hydroxide (Na, Ca) 0.33 (Al, Mg) 2 (Si4O10) (OH) 2·nH2O. Potassium, iron, and other cations are common substitutes, and the exact proportion of cations varies from source to source. It is often mixed with chlorite, Muscovite, illite, cobalt greenstone and kaolinite.
当社は、緊密な協力関係にある多くの高品質の工場を有しており、高品質の製品と競争力のある価格を提供できます。また、大量購入には割引も提供できます。また、当社は多くの専門の貨物運送会社と協力し、製品を安全かつスムーズにお客様の手元に届けることができます。納期は、支払い確認後約3〜20日です。
アイテム
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SPECIFICATIONS
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TEST RESULTS
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DETERMINE
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外観
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A white Crystalline Powder
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A White Crystalline Powder
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Qualified
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識別
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Positive
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Positive
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Qualified
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Assay, %
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98.0~101.0
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98.8
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Qualified
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Specific Optical Rotation [a]D20
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-16.0°~18.5°
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-16.1°
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Qualified
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Moisture, %
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≤1.0
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0.25
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Qualified
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Ash,%
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≤0.1
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0.09
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Qualified
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Pb,mg/kg
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≤2.0
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<0.1
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Qualified
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As, mg/kg
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≤2.0
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<0.1
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Qualified
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Total Plate Count,cfu/g
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≤3000
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<1000
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Qualified
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Coli Group, cfu/g
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≤0.3
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<0.3
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Qualified
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Yeast&Mold ,cfu/g
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≤50
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10
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Qualified
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Salmonella/ 25g
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ネガティブ
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ネガティブ
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Qualified
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1. 貴社は工場ですか、それとも貿易会社ですか?
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2. サンプルは提供されますか? 無料ですか、それとも追加料金がかかりますか?
サンプルは無料です。サンプルの送料はお客様負担となります。
3. 品質管理に関する証明書はありますか?
品質を保証する ISO 9001:2008 認証。
4. 見積もりを取得するには、何を提供すればよいですか?
必要な製品タイプ、注文数量、住所、具体的な要件をお知らせください。参考用に見積書をすぐに作成いたします。
5. どのような支払い方法をご希望ですか? どのような条件が受け入れられますか?
受け入れられる配送条件: FOB、CFR、CIF、EXW。
受け入れられる支払い通貨:USD;
受け入れられる支払いタイプ: T/T、Western Union、Paypal、Trade Assurance。
使用言語:英語。
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