Pelletized calcium chloride

Red Hot Pellets. [Schaefer Salt Chem.] Pelleted calcium chloride. 

Calcium chloride cannot be used to dry the ethereal solution because it combines with aniline (and other amines) to form molecular compounds. The best drying agent is sodium or potassium hydroxide (pellet form). 

The diazomethane-ether solution should be dry. If in doubt, it may be dried with A.R. potassium hydroxide pellets. The anhydrous ethereal solution may be stored in a smooth glass flask or bottle in a refrigerator for a week or so since slow decomposition occurs with hberation of gas, the containing vessel should be protected by a calcium chloride (or cotton wool) guard tube. 

Peabody Energy Corporation, 242 Pechmey SA, 158 Pecom Energia SA, 141 PELADOW , calcium chloride pellets, 102 Pelcam, 199... 

Mixing Chart for Heavy Brines Using Calcium Bromide and Calcium Chloride Brines and Calcium Chloride Pellets... 

After 30 minutes the solid sulfinic acid is separated on a fritted-glass filter. The sulfinic acid is dissolved from the filter by a mixture of 750 ml. of ether and 750 ml, of methylene chloride. The solution is dried over calcium chloride and evaporated to dryness under reduced pressure (bath temperature 25°) (Note 5). The residue is suspended in 50 ml. of water, and small portions of dilute ammonia are added to the well-stirred suspension until it has a pH of 9 (Note 6). Insoluble impurities are separated by filtration, and 2-nitrobenzenesulfinic acid is precipitated from the filtrate by adding 5-ml. portions of 6N hydrochloric acid with cooling the sulfinic acid precipitated by each portion of acid is separately collected on a Buchner funnel (Note 7). The acid, a pale yellow solid, is dried on a clay plate in a vacuum desiccator over potassium hydroxide pellets, m.p. 120-125° (dec.), weight 9.4-14.9 g. (50-80%). If the 2-nitrobenzenesulfinic acid is to be used for the hydrogenation of the next step high purity is required, and it is generally advisable to reprecipitate the acid once more in the same way (Note 8). 

In a 250 ml. distilling flask (1) place 122 g. (119 ml.) of p-phenylethyl alcohol and 40 g. of sodium hydroxide pellets (or 56 g. of potassium hydroxide). Heat is evolved. Warm gently until bubbles commence to form and the mixtiu separates into two sharply-defined layers. Distil slowly water, etc. passes over first accompamed by the gradual disappearance of the upper phase. Finally the st n ene passes over at 140 160° (mainly 150°) collect this separately in a receiver containing about 0 1 g. of hydroquinone. Dry the distillate with a Uttle anhydrous calcium chloride or magnesium sulphate, and then distil under reduced pressure (2). Collect the pme stjTene at 42-43°/18 mm. The yield is 80 g. Add about 0-2 g. of hydroquinone (anti-oxidant) if it is desired to keep the phenylethylene. 

Kawashima and Capes (K8) have studied the kinetics of microagglomeration, using as a model system a suspension of narrow size-distribution sands in carbon tetrachloride and 20% aqueous calcium chloride solution as the bonding liquid. The mean diameter of the pellet produced ranges from about 0.5 mm to almost 1.5 mm. The size distribution are log normal in a reduced... 

A. Anhydrous hydrazine (Note 1). A 250-ml. distilling flask is set in an oil bath and connected to a condenser by means of a cork covered with tin foil (Note 2) a 250-ml. suction flask is used as the receiver. This flask carries a calcium chloride guard tube and is connected to a condenser through a cork covered with tin foil. In the distillation flask are placed 60 g. of 85% aqueous hydrazine hydrate (Note 3) and 60 g. of sodium hydroxide pellets (Note 4). The temperature of the oil bath is raised... 

Deicing. All forms of calcium chloride are used in conjunction with other products to deice pavement, driveways, and sidewalks. Anhydrous, 94—97 wt % calcium chloride pellets and 77—80 wt % calcium chloride flakes are used for highway deicing and in institutional and consumer markets. Calcium chloride solutions of 28—32 wt % concentration are used for prewetting rock salt or abrasives such as sand or cinders before spreading on highways. Solutions of 42—45 wt % concentration are also used to pretreat stockpiles of these materials. Calcium chloride is the deicer of choice for use at... 

Robinson and his co-workers 6 prepared pure arsine in pure hydrogen by slowly dropping (during 2 hours) a solution of arsenious oxide (20 g.) in freshly boiled hydrochloric acid (250 c.e. acid 50 c.c. water) on pure magnesium turnings (50 g.) in a 750-c.c. round-bottomed flask cooled in water. The reaction products passed through aqueous potash into successive tubes containing potash pellets, fused calcium chloride and phosphorus pentoxide, and thence to a vessel immersed in liquid air. The pure arsine was finally obtained by careful fractionation. 

China Bread Cu-Ni Clay Crumbs Concentrate Catalyst Pellets Kaolin Calcium Chloride Urea Vitamin Powder... 

Optional Resuspend the pellet in 50 ml of 20 mM HEPES buffer, pH 6.9/2 mM calcium chloride. Incubate with 200 U porcine pancreatic a-amylase at 40°C for 1 hr with stirring. Filter on 1 l- im mesh in a Buchner funnel. Wash twice with 50 ml HEPES/calcium chloride buffer and combine the fdtrates. Dialyze against distilled water as above (step 3) and freeze dry and weigh as described in Basic Protocol 2, steps 14 to 16. 

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