Supply High Purity Hydrated Lime/Ca(OH)2 Calcium Hydroxide

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Qingdao
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TT OR LC
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Supply Capability:
20000 m.t/month

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Product Description:

Specifications of High Purity Hydrated Lime/Ca(OH)2 Calcium Hydroxide

product:Calcium hydroxide
cas no.:7778-77-0
purity:90-96%
packing:25kg/bag

supply  of price of calcium hydroxide best quality/CAS NO.:7778-77-0

Specifications

Potassium dihydrogen phosphate
Molecular formula: KH2PO4
CAS: 7778-77-0
Appearance: white crystal powder

Properties of  High Purity Hydrated Lime/Ca(OH)2 Calcium Hydroxide :

Colorless sifang crystals or white crystalloid powder. The relative density 2.338. Melting point 252.6 °C. Soluble in water (90 °C for improve g / 100ml canister water), become acidic aqueous solution, 1% linsuanerqingjia solution pH value is 4.6. Not soluble in alcohol. Have ChaoXie sex. Heating and 400 °C melted and transparent liquid, after cooling curing is not transparent glass shape partial potassium phosphate.

Use:

Analytics reagents, such as configuration standard solution, buffer a PH. Also used in the pharmaceutical industry, piezoelectric element and electric optical components production.

Details:

Test item

Specification

Reagent grade

Pharmaceutical grade

Appearance

Conform

Conform

Assay [KH2PO4]/%

≥99.5

≥99.0

Clarify degrees test

Conform

Conform

Water insoluble/%

≤0.002

≤0.005

Dry weightlessness /%

≤0.2

≤0.3

Chloride (Cl)/%

≤0.001

≤0.005

Sulfate (SO4)/%

≤0.003

≤0.005

N/%

≤0.001

≤0.002

Sodium (Na)/%

≤0.02

≤0.05

Ferric (Fe)/%

≤0.001

≤0.005

Arsenic  (As) /%

≤0.0005

≤0.002

Heavy metal (Pb)/%

≤0.001

≤0.005

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Q:What is the harm to the human body?
The disadvantage of soda ash is the vitamin B1, B2 and vitamin C in food have a strong destructive effect, and will affect the body of certain minerals absorption and utilization, and therefore can not be abused.
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:How does the edible base use?
(Sodium carbonate) (chemical formula Na2CO3) and baking soda (sodium bicarbonate) (chemical formula NaHCO3), baking soda is made from soda ash solution or crystal absorption of carbon dioxide after the finished product, both There is no difference between the system. Therefore, edible alkali in some places also known as baking soda (powder). Edible alkali is solid state, round, color white, soluble in water.
Q:What is the alkaline powder? Baking soda? Sodium carbonate or something else?
Bicarbonate NaHCO3, is solid, powder is more common, commonly known as baking soda powder is weak alkaline substances, can inhibit the growth of fungi was originally used as a production of bread fermentation ... ...
Q:What is called alkali recovery
Extraction equipment extraction status is good or bad, largely depends on the extraction of equipment. Different pulp, there are different equipment selection. At present the factory application is the most four series of drum-type vacuum washer. Its technology is mature, easy to operate, from the pulp into the pulp, the basic completion of the separation of pulp and black liquor, the extraction rate is also high. Pulp washing degree and the production of black liquor indicators are basically able to meet the choice of more manufacturers. The disadvantage is the big investment, power consumption.
Q:The commonality of the base
alkaline solution can react with non-metallic oxides, generate salt and water
Q:Alkali soda water
Soda water is an aqueous solution of sodium bicarbonate, containing weakly alkaline, medical topical disinfectant, drinking and neutralizing the body's acid-base balance, changing the acidic constitution. Most of the soda water sold on the market is a synthetic carbonated beverage that is compressed into purified water and added sweeteners and fragrances. Soda water is a carbonated beverage, is pressed into purified drinking water into carbon dioxide, and add sweeteners and spices. He is an aqueous solution of sodium bicarbonate, containing weakly alkaline, medical topical sterilization, oral administration can be integrated within the body's acid-base balance, change the acidic body. Sodium bicarbonate is what we say baking soda molecular formula NaHCO3 is usually said that the surface screwdriver, but this is not directly joined the surface screwdriver, the market selling soda water is mostly in the purified drinking water into the carbon dioxide, and add Sweeteners and fragrances of synthetic synthetic carbonated beverages. Baking soda: NA2CO3 soda: NAHCO3, weak base. Medical topical disinfection can be sterilization, oral administration can cure too much acid. Soda water is actually carbonated water Well, Coke, whiskey what is inside. Pure soda water also has, usually the equipment, supermarkets have to sell. Can be used for cocktails. Can go to the pharmacy to buy small soda tablets with warm water to the system, but the concentration is not good to master.
Q:What are the characteristics of the composition of the base?
Metal ions and hydroxide ions
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:What is alkali active aggregate?
Aggregate in the active SiO2 is too high, such as chalcedony, agate, scales quartz, square quartz and so on.

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