eighteen simple exposition of sodium

Sodium stearate, calcium stearate and sodium chloride by metathesis reaction derived fine white powder , metallic calcium content of 6.5% , mp 149-155 ℃, heating loss is less than 2% , the plastic additive  relative density of 1.08 , fineness by 0.075mm sieve 99.5% , free acid ( as stearic acid ) 0.5% , in the air, water absorption .
Sodium stearate, calcium stearate and sodium chloride by metathesis reaction derived fine white powder , metallic calcium content of 6.5% , mp 149-155 ℃, heating loss is less than 2% , the relative density of 1.08 , fineness by 0.075mm sieve 99.5% , free acid ( as stearic acid ) 0.5% , in the air, water absorption .
The product can be used as a thermal stabilizer of polyethylene , has excellent lubricity, good processability , and an  PVC stabilizer epoxy compound with zinc soap and having a synergistic effect , can improve the thermal stability, and the base of lead salts and lead soap and used hardware products , you can improve the speed of gelation . This product can be used in polyethylene and polypropylene resins to eliminate residual catalyst on the adverse effects of color and stability . This product is also widely used as a polyolefin , polyester reinforced plastic , phenolic resin, amino resin, thermosetting plastics lubricants and release agents .
Sodium stearate of formula Na (C18H35O2) { i.e. (C17H35COO) Na}, molecular weight 306.46 . 7.51% sodium containing stearic acid 92.50 , purity 99.5%. White powder or white block, with creamy , fatty taste , soluble in water or alcohol-water solution is alkaline due to hydrolysis . Melting point 100 ~ 110 ℃, should be kept in kept in a cool , dry, well  Stearates ventilated place . Sodium stearate, polyethylene can be used as a heat stabilizer , has excellent lubricity, good processability , and an epoxy compound with zinc soap and having a synergistic effect , can improve the thermal stability, and the base of lead salts and lead soaps and for hard products , the gelling speed can be improved . This product can be used in polyethylene and polypropylene resins to eliminate residual catalyst on the adverse effects of color and stability . This product is also widely used as a polyolefin , polyester reinforced plastic , phenolic resin, amino resin, thermosetting plastics lubricants and release agents .

Potassium stearate some simple introduction

1 Stearic acid and potassium hydroxide at elevated temperature , and then cooled to obtain the product .
2 10g of stearic acid was dissolved in 100mL 95% ethanol , with 0.5mol / L alcohol solution of potassium hydroxide titration with Impact modifier  phenolphthalein as an indicator , titrated to the equivalence point, the precipitated potassium stearate soap pump filtration separation . The crude product can be recrystallized from 95% ethanol to give pure product.
Bulking agent ; blowing agents ; anti-caking agent ; emulsifier ; stabilizer. As emulsifiers , can be used in cakes , maximum usage Pigments  is 0.18g/kg. Used as a surfactant and fabric softener .
Potassium stearate, potassium stearate ; potassium stearate white powder , with slight fatty odor . Molecular weight of 322.58 . Soluble in water, alcohol. Slowly soluble in cold water. The litmus and phenolphthalein solution were strongly alkaline , but only to phenolphthalein alcohol solution was slightly alkaline . General merchandise contain a certain proportion of palmitate . Production methods used mainly saponification . With butter, suet and other oils as raw tomatoes with potassium hydroxide solution , saponification reaction, and then salting , separation of glycerol derived. Use of anionic surfactants. Often referred to as potassium soap or soft soap, mainly Optical brightener  used for Cream shampoo and cosmetics as emulsifiers and detergents . The emulsion has a high efficiency, but sensitive to hard water , to produce calcium soaps with hard water , the emulsion variant or destruction , is a calcium -sensitive emulsion , so the cosmetics production process should be noted.
 Properties: potassium stearate appearance of fine white , fluffy powder , creamy feel , no sand feeling, fatty odor , soluble in hot water or alcohol , the solution is alkaline due to hydrolysis .
Main use: This product is widely used in food additives, pharmaceutical , cosmetics and other industries, mainly for food stabilizers, lubricants , emulsifiers , mold release agents , thickeners , accelerators, cosmetic base materials such as glue additive
   Quality index: content greater than 98.0% , acid value :196 -211 , iodine value : less than 4.0% Loss on drying: 4.0% Heavy metal : 10ppm, Arsenic : Less than 3ppm.

metal soaps introduce some of the main waterproofing agent

Waterproofing agents of metal soaps soluble metal soaps (the soluble soap ) waterproofing agent , and asphaltenes II metal soap waterproofing agent . Water soluble metal soaps agent is stearic acid , ammonia , potassium hydroxide ( or soda) and water heating by  magnesium hydroxide flame retardant mixing a saponified preparation waterproofing agent . This product is a paste -like, mixed with the cement mortar or concrete, the cement particles and aggregates can form a hydrophobic adsorption layer and between the formation of insoluble matter , from the tiny pores and clogging the capillary filling passage effect. Bituminous waterproofing agent is a metal soap liquid petroleum asphalt, lime and water, mixing, grinding is made by drying . Mixed with the PVC foaming board stabilizer  cement mortar and concrete ... a pore size in the nanometer to millimeter . If the surface in contact with the aqueous solution by capillary action will be adsorbed to the surface of concrete and further penetrate into the concrete ; same time , the solution of harmful substances such as chlorine ion , sulfate ion and the like can also be easily transported water into the concrete , reinforced concrete structure to bring serious corrosion damage [ 1 ] . At present , domestic and foreign has  red iron oxide been widely adopted penetration waterproofing agent on the concrete surface water treatment [ 2 ] , but using this traditional approach , the penetration depth of the water repellent is very limited , and in some special cases waterproof effect is not very satisfactory . If you can water repellent mortar or concrete as a component incorporated therein , its protection would be better, this approach is within the mixed water treatment. This paper mainly uses four different types , two kinds of different dosage of metal soap , add it to the concrete mixture to compare , test and research within the mixed metal soap of concrete compressive strength, water absorption coefficient by capillarity and resistance to chloride ion intrusion ability.

concrete surfaces enclosing class waterproofing agent of some description

Concrete surfaces enclosing class waterproofing agent is applied to the concrete surface coated with a layer of a surface layer can penetrate into the pores of the hydrophobic manipulation of waterproof material , such as commonly used in China silicone waterproofing agent, waterproofing agent  Impact modifier for PVC like sodium silicate , and the use of foreign methacrylate monomer waterproof Qi carbazole vinegar and so on. 1 penetrate the surface of the closed water causes and mechanism of concrete seepage mainly due to external pressure , or as a result of which the pores of the concrete surface adsorbed water, or because of the combined effect of both . Pore ​​water is due  iron oxide yellow to the pores on the surface acting on the surface tension of water in the concrete grout generated driving force of the adsorbed water . Concrete interface between water and the contact angle of the meniscus is generally less than 90 degrees, the force to drive water into the pores ( as shown in Figure la ) , which can wet the surface . When using a  plastic processing aid certain way ( brushing, spraying , etc. ) in the surface layer of the concrete surface coating applied waterproofing agent enclosing class , due to water repellent and coagulation Rui Qian Zhu Xi air bundle wrapped in cloth which fluorine anxious when Chongqing a flute into the water " containing ) doors ,, (a) normal coagulation on the surface of the twist 90 ' ) ST 1 contact angle ( wetting of the surface of the concrete filling the pores of the soil and the water repellent composition of the reaction itself, or because of the chemical properties of the pores of the concrete ( micropores , pores , etc. ) and water contact angle is increased to more than 90 degrees ...

aluminum sulfate wastewater in food processing applications

Different stages in the food industry wastewater generated features are not the same. The main raw material in the first washing is suspended contamination produced, and in the production and  PVC foaming board stabilizer processing stage is mainly organic contamination, and in the forming stage as compared to additive contamination. The aluminum sulfate wastewater treatment in the food processing which stage it? Its application is kind of how it?
Aluminum sulfate in the food wastewater treatment applications
In the food industry wastewater, for some small colloidal particles, or some colloidal solution, difficult or impossible to subsidence occurred adding chemical coagulants aluminum sulfate wastewater, making it easy to form large particles settling to remove. Wastewater colloid state of proteins and polysaccharides, ie after dosing oxidized PE WAX  coagulation better removal.
Commonly used in the food processing wastewater coagulation agent
Lime, ferrous sulfate, ferric chloride and aluminum sulfate. Lime is generally not used alone, often used in conjunction with other agents, the optimal dosage and pH should be determined by experiments. Aluminum sulfate in waste water treatment in the food, in addition to a coagulant, but also can serve as a redox agent, alkaline food waste can be used as the acid modifier. It is the versatility in the alkaline waste water chemicals.

toxic ammonium aluminum sulfate do, what is the standard of its use

The use of ammonium aluminum sulfate solution was added ammonium aluminum sulfate solution was prepared from a series of n-butyl stearate  operations. It is mainly used as a buffer, neutralizer, leavening agent, water purifying agent, pickles and boiled, stewed food color fixative. So, ammonium aluminum sulfate poisonous? Aluminium ammonium sulfate in food applications use some kind of standard?
Toxic ammonium aluminum sulfate do
In daily life, if excessive intake of aluminum, it will affect people's intelligence, bone demineralization and other hazards. Although ammonium aluminum sulfate chemical additives, but it carbon black powder  has a non-toxic, food grade it is a legitimate food additive, do not exceed the maximum amount prescribed by the State, the human body is no health hazard.
Aluminum ammonium sulfate using the standard requirements
Chinese regulations can be used for fried foods, shrimp, soy, baking powder, biscuits, puffed food and aquatic products, according to iron oxide black  production needs appropriate use of aluminum residues ≤ l00mg/kg. World Health Organization's assessment, the provisions of the daily intake of aluminum 0-0.6mg/kg, kg body weight of a person, that is, a 60kg person allows intake of 36mg. This prescribed, except for aluminum ammonium sulfate, but also applicable to other, such as aluminum chloride, aluminum sulfate and potassium aluminum ions containing chemicals.

High concentrations of calcium stearate, zinc stearate

can lead to insulin resistance. According to reports, hyperlipidemia is due to lipid metabolism disorder caused by one or more of the plasma lipid composition characterized by abnormally elevated  Barium soap  concentrations of illnesses. Hyperlipidemia and insulin resistance, diabetes mellitus have a close relationship.
However, there is a serum fatty acid profile in hyperlipidemia studies are concentrated in the fasting state, in their study investigated the postprandial state is still blank stage. As we all know, three meals a day, the body most of the time in a postprandial state, so research postprandial serum fatty acid profile and metabolic changes impact on the body has more practical significance.
By postprandial hyperlipidemia population  PVC heat stabilizer for window changes of serum fatty acid, a fatty acid for the first time found that only calcium stearate, zinc stearate in the postprandial state levels were significantly increased in high concentrations of calcium stearate zinc can lead to insulin resistance, and reduce expression of SREBP-1c to reduce calcium stearate, zinc levels, thereby improving insulin resistance.
Researchers crowd postprandial hyperlipidemia serum calcium stearate, zinc stearate, elevated levels of  PVC window stabilizer the molecular mechanism of high concentrations of calcium stearate, zinc stearate implications for insulin resistance and how to reduce postprandial rise high calcium stearate, zinc stearate level of in-depth research, eventually found increased calcium stearate, zinc stearate, postprandial serum insulin concentration is due to the increase of stimulated calcium stearate, hard de novo synthesis of fat and zinc palmitate direct extension (ELOVL6). By in vivo, in vitro small RNA interference techniques, the researchers confirmed that reduces SREBP-1c or ELOVL6 expression could reduce calcium stearate, zinc levels, thereby improving insulin resistance. Further comparison of the interference in the difference after two targets, they found that inhibition of expression of SREBP-1c can more effectively improve insulin resistance.