High Purity Hydrated Lime/Ca(OH)2 Calcium Hydroxide with good price

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20000 m.t/month

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Specifications

1.Calcium hydroxide
2.Cas no.:1305-62-0
3.Purity:offwhite graules
4.Conent 95% min /98% min
5.25kgs per bag

 calcium hydroxide

Description

calcium hydroxide is a kind of grey powder. It consists of calcium oxides, silicon dioxide, ferric oxide and little other ingredients. When  mixed with appropriate water and poured into the pre-drilled holes, it will start to expand after half an hour, the expanisve power is increasing as time goes on. It can get 100-123 Mpa expansive power after some hours. Generally, the rock or concrete belongs brittle material, their tensile strength are far less than the compressive strength (for the tensile strength, rock is 1.96-30Mpa while concrete is 1.5-4.0 Mpa, they are equal to 1/10-1/20 of their compressive strength). Therefore, reasonable hole design can easily crack the rock and concrete or reinfored concrete by our BREAK-AG. As usal, it can crack the materials in around 2-24 hours. It is soundless, non-explosive, no noise, no vibration, no flying rock during the process of demolition.

Application

1. Mainly adjust acid waste water pH value, widely used for electroplate, chemical industry, circuit board, pickling, printing & dyeing and paper making, industries waste water treatment.

2. Used to remove phosphate,most of the heavy metal and ammonia nitrogen etc.

3. Used for tanning and mining industry etc.

Type Of TestStandardObserved
DescriptionWhite light powderWhite light powder
Assay(Min.) 96.0%96.58%
Calcium carbonate (as CaCO3)<3.0%2%
Substance insoluble in HCl<0.1%<0.1%
Chloride (Cl)<0.03%<0.03%
Sulphate (SO4)<0.1%0.08%
Iron (Fe)<0.05%<0.05%
Heavy metals (as Pb)<0.005%0.004%
Substance not precipitated by
ammonium oxalate (as SO4)<2.5%<2.5%

Package, transportation and storage

 

 Package: Packed in 25 kilograms craft paper bags.
 Transportation: the product should be protected from damp, rainfall and package damage in transportation.
 Storage: at dry warehouse with good ventilation.

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Q:Would you like some rice when you cooked rice or millet gruel?
Sometimes some people in the cooking boiled rice gruel, grasp some of the alkali on the porridge, the big canteen chef especially like to do so. On the one hand figure cooked fast, on the other hand add alkali after cooking porridge more sticky delicious, taste and good. However, they do not know that this is to destroy the rice (rice, millet) in the most valuable nutrients, such as vitamin B1 and vitamin B2. And because vitamin B1 is known as the spirit of nutrients, the nerve tissue and mental state has a very important impact, lack of fatigue, forgetfulness, anxiety and other symptoms, so boiled millet gruel must not add alkali.
Q:How to go to the base of the teapot
Many people like to drink tea, but the cup of tea is difficult to remove the tea, tea wall grows a layer of tea, containing cadmium, lead, iron, arsenic, mercury and other metal substances. They are in the tea into the body, and food in the protein, fat and vitamins and other nutritional compounds, resulting in insoluble precipitation, hinder the absorption of nutrients. At the same time, these oxides into the body can cause nerve, digestion, urinary hematopoietic system diseases and dysfunction, especially arsenic, cadmium can cause cancer, causing fetal malformations, health hazards. Therefore, tea drinking habits, should always be timely cleaning tea inside the tea. In order to make you no longer a big headache for the matter, the following describes several ways in addition to tea: (1) remove the metal tea on the tea off, the use of metal tea, Become black, such as with medium-sized cleaning agent can not wash, can be soaked with vinegar, or soaked with bleach can easily peel. (2) to remove the cup or teapot on the tea, cups, teapots with a long time, it will be a lot of tea, with a sponge dipped in salt friction, can be easily removed. (3) in addition to small pieces of tea, can be soaked in bleach or clean powder solution, and place a night, you can remove the tea scale. (4) can be used toothpaste or broken eggshell scrub, and then rinse with water can be.
Q:Do you eat too much alkali to harm your body?
Excessive intake of alkali hazards: The disadvantage of edible alkali is the food in the vitamin B1, B2 and vitamin C has a strong destructive effect, and will affect the body of certain minerals absorption and utilization, so do not overuse.
Q:What is alkali sand
Potassium carbonate, white crystalline powder. Density of 2.428g / cm3. The melting point of 891 ° C, the decomposition of boiling point, the relative molecular weight of 138.21. Soluble in water, aqueous solution is alkaline, insoluble in ethanol, acetone and ether. Hygroscopicity, exposure to air can absorb carbon dioxide and moisture, into potassium bicarbonate, should be sealed packaging. Hydrates have a water, dihydrate, sour things. Potassium carbonate aqueous solution is alkaline. Insoluble in ethanol and ether.
Q:What is the role of alkaline powder
Alkaline powder can treat burns. If the scald area pony immediately coated with alkaline powder, and then drop a few drops of water, alkali powder will be dissolved immediately after the water. Was burned parts of the beginning of the alkaline powder coated with a sense of burning, and after a while feel very comfortable ice, like the heat burned alkaline powder is like, so repeated several times can reduce the pain and trauma burns. If the area of burns larger, can be soaked with alkali powder soak for about half an hour or an hour.
Q:I have been very confused, baking soda and edible alkali surface is the same thing?
Baking soda is not edible.
Q:What is the role of alkali in the surface
Related to the crowd: the general population can edible production guidance: 1. Alcohol can remove the salad in the oil, the method is to wait until with the aroma of salad oil heated to hot, put a certain amount of soda ash, slowly with chopsticks Even can be; 2. Alcohol can remove the dough's sour taste, and can make the bread bulky white, but can not add too much, otherwise the bread will become yellow or crack, the taste will become bitter. Heat, taste bitter; with dehumidification, the food stagnation, detoxification of the role of acid. Note: 1. Do not put the food in the lye soak, so as to avoid raw materials rot, as long as the appropriate concentration of alkaline water will be repeated washing Several times can be; 2. Alkali is inorganic, itself does not have any nutrients, but the role of food cooking can not be underestimated, alkali solution of the electrolyte is the electrolyte, so that food raw materials (such as squid) in the protein molecules in water Ability to enhance the speed of raw materials to speed up, but should pay attention to master the amount of alkali, methods and time to prevent food raw material was too thoroughly, too bad or even deterioration.
Q:What to do with the wall
Wall latex paint suggest you re-done. Especially to make the primer
Q:How does the edible base use?
Alcohol is not a commonly used condiment, it is just a food loose agent and meat tenderener, can make dry goods raw materials quickly rise, soften the fiber, remove the dough's sour taste, the appropriate use can bring excellent food The color, smell, taste, shape, to enhance people's appetite. Alkaline used in a large number of food processing such as noodles, bread, bread and so on.
Q:What is the important character of Chinese made alkali?
In 1862, the Belgian people Solvay (Ernest Solvay 1838-1922) invented the salt, ammonia, carbon dioxide as raw material for the production of sodium carbonate "Solvay alkali method" (also known as the ammonia method). Since then, Britain, France, Germany, the United States and other countries have established a large-scale production of soda ash plant, and organized the Saul Wei Association, members of the country outside the implementation of technical blockade.

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