Caustic soda, flake

Solid particules (example caustic soda flakes)... 

Sodium metasilicate, anhydrous Caustic soda, flake... 

It was the practice to neutralize slight acidity in such solvents in a pressure vessel (called a neutralizer) that was filled with solid caustic soda flakes or beads. Such treatment was a common method to improve tainted inventories of solvent intermediates and products. The operating team was pleased to secure the equipment and caustic soda to improve this product. 

CAUSTIC SODA, dry pOp CAUSTIC SODA, flake pop CAUSTIC SODA, granular pop CAUSTIC SODA, Uquid pop CAUSTIC SODA, soUd pop CAUSTIC SODA, solution pOp HYDROXYDE de SODIUM (FRENCH) LEWIS-RED DEVIL LYE LYE pop O NATRIUMHYDROXID (GERMAN) NATRIUMHYDROXYDE pUTCH) SODA LYE SODIO(IDROSSIDO di) (ITALIAN) SODIUM HYDRATE pop O SODIUM HYDROXIDE, bead pOp SODIUM... 

Water 88.3% Caustic Soda Flakes 0.7% Monamine ALX-100S 6.0% Butyl Cellosolve 2.0% Sodium Carbonate 2.0% Hampene 100 1.0%... 

Synonyms cas 1310-73-2 caustic soda caustic soda, bead caustic soda, dry caustic soda, flake ... 

Fusion with caustic soda at 500—800°C in an iron cmcible is an effective method for opening pyrochlores and columbites (20). The reaction mixture is flaked and leached with water to yield an insoluble niobate which can be converted to niobic acid in yields >90 wt% by washing with hydrochloric acid. 

If the untreated brine has the proper pH value, the acidifying effect of the dichromate may be neutralizea by adding commercial flake caustic soda (76 percent pure) in quantity that corresponds to 27 percent of sodium dichromate used, Caustic soda must be thoroughly dissolved in warm water before it is added to the brine,... 

Sodium hydroxide (NaOH) (caustic soda) White deliquescent solid. Sticks, flakes, pellets. Dissolution in water is highly exothermic. Strongly basic. Severe hazard to skin tissue... 

Sodium hydroxide (NaOH) (caustic soda) Potassium hydroxide (KOH) (caustic potash) Calcium hydroxide (Ca(OH)2) (slaked lime) Ammonium hydroxide (NH4OH) (aqueous ammonia solution) White deliquescent solid. Sticks, flakes, pellets. Dissolution in water is highly exothermic. Strongly basic. Severe hazard to skin tissue White deliquescent solid. Sticks, flakes, pellets. Dissolution In water is highly exothermic. Strongly basic. Severe hazard to skin tissue White powder soluble in water yielding lime water. Alkaline Weakly alkaline. Emits ammonia gas. Severe eye irritant... 

Synonyms Caustic soda caustic flake lye, caustic liquid caustic... 

As a rule of thumb 95% of the average chrome plating bath goes down the drain. In the case of our company this amounted to an average monthly addition of 600 to 800 pounds of chromic acid flake. To reduce hexavalent chrome to trivalent chrome requires 1000 to 2000 pounds of sodium metabisulfate a month. We also consumed 3000 to 5000 pounds of liquid caustic soda a month. This would in turn create 20 yards of filter cake every two months. 

Caustic Soda.—-This is supplied in powder, stick, flake and pellet forms, the last two being convenient to use. The pure variety comes on the market in the form of sticks. In weighing out a quantity, the sticks should not be handled. Pieces of a desired size can be broken off by elevating one end and dealing a sharp blow with a knife or file at the desired point. The same remark applies to caustic potash sticks. 30—40% solutions of caustic soda are available in commerce. Usual impurities chloride, carbonate, and chlorate of sodium. 

SODIUM HYDROXIDE (CAUSTIC SODA) Physical Properties Sodium hydroxide, NaOH, mol wt 39.998, is a brittle, white, translucent crystalline solid. Because of its corrosive action on all human body tissue, it is also known as caustic soda. Physical properties of the pure material are noted in Table 20. Sodium hydroxide is produced and shipped in the anhydrous state in the form of solid cakes, flakes, or beads, but is used in solution (4). Properties of aqueous sodium hydroxide solutions relevant to industrial operations are available from manufacturers and in handbooks (79). Table 21 lists the significant uses. Table 20. Physical Constants of Pure Sodium Hydroxide ... 

Another possibility to use PET recyclate for food applications is the URRC process (United Resource Recovery Corporation). In this method the cleaned PET flakes are covered with concentrated caustic soda. After evaporation of the water in a rotary kiln the sodium hydroxide etches the surface of the PET at a temperature of more than 200°C. The resulting sodium terephthalate is removed by washing. The remaining flakes are used for the production of bottle preforms. Since 2000 several plants in Switzerland and Germany have been established [1],... 

Before the 1950s, soap was manufactured in the saponification process. Soap was prepared in large kettles in which fats, oils, and caustic soda were mixed and heated. After cooling, salt was added to the mixture forming two layers soap and water. The soap was pumped from the top layer to a closed mixing tank where builders, perfumes, and other ingredients were added. Finally, the soap was rolled into flakes, cast, or milled into bars, or spray-dried into soap powder [1, 2]. 

It is strongly recommended that the THF first be checked for the amount of peroxide or hydroperoxide before any further purification is attempted. If more than 0.1 % is found, the peroxide must be decomposed. This can be done by agitating with flake caustic soda. It has also been suggested to effect the deperoxidation by means of self-indicating molecular sieves [95], but inasmuch as this must result in a peroxide enrichment in the molecular sieve, this procedure is viewed as a source of danger which has not been sufficiently investigated so far. 

Phosflake [PPG], TM for a uniform blend of caustic soda and trisodium phosphate prepared in flake form, especially for bottle-washing use. 

Caustic soda in liquid and flake forms are used in dye and textile industries... 

Aqueous NaOH from the electrol5hic process is evaporated to give solid NaOH (caustic soda) as a white, translucent solid which is fused and cast into sticks, or made into flakes or pellets. Uses of NaOH are summarized in Figure 10.2b. 

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