Cellulose hexahydrate

Table VII. Comparison of Cellulose Pyrolysis Rates (Rates of Weight Loss) Analyzed by Differential Methods for Cellulose Treated with 107. Aluminum Chloride Hexahydrate. All Rates are in Units of 10A-4 / Sec...

Table VIII. Activation Parameters for Pyrolysis (Rate of Weight Loss) for Cellulose Samples Treated with 10% Aluminum Chloride Hexahydrate, Based on Data in Table VII...

Aluminum Trichloride Hexahydrate. The 2nd-order method for determination of TGA rates of AlClg 6H20—treated cellulose was again statistically best (Table VII). This data contrasts with a dynamic TGA study which suggested a 0-order followed by a lst-order reaction (22). 

Chitosan/ Pentasodiumtripoly-phosphate Hexahydrate/ Carrageenan-A or Cellulose Sulfate NT A/R Chitosan is Cytotoxic... 

Eyler,26 who determined the copper iodometrically after precipitation of copper carboxymethylcellulose phosphates interfered with this analysis. A more satisfactory precipitating agent was found to be uranyl nitrate hexahydrate,26 though earlier investigations21 had shown that carboxymethylcellulose precipitates more than the theoretical amount of uranium. Mention should be made of the original analytical method developed by Kalle and Co.,26a in which the cellulose ether was determined by dichromate oxidation. 

DOT CLASSIFICATION 7 Label Radioactive, Oxidizer SAFETY PROFILE Poison by inhaladon. Moderately toxic by ingestion. Human mutadon data reported. A corrosive irritant to skin, eyes, and mucous membranes. A radioacdve material. A powerful explosive and oxidizer. Incompadble with cellulose. Ether soludons in sunlight may explode. When heated to decomposidon it emits toxic fumes of NOx. See also URANYL NITRATE HEXAHYDRATE and URANIUM. 

A novel means of enzyme insolubilization involves chelation. " " Treatment of cellulose with titanium or other transition-metal ion activates the polysaccharide, which then reacts directly with enzymes. Presumably, in the activation, one of the water molecules in the octahedral, hexahydrated titanium (IV) ion becomes replaced by a polysaccharide hydroxyl group, and, in the second stage, another water molecule is displaced by an amino, carboxyl, or hydroxyl group of the enzyme. 

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