Calcium Hydroxide 96% (Cas No 1305-62-0)

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Product Description:

Specifications  of Calcium Hydroxide 96% (Cas No 1305-62-0)

molecular formula: Ca(OH)2
CAS: 1305-62-0
Appearance: white powder

Properties:

Exquisite white crystalloid powder. A large slightly bitter alkali flavour. Easy to absorb carbon dioxide in the air and become calcium carbonate, hot to 522 °C dehydration into cao. The relative density 2.24 °C (at the same time, melting point 580 dehydrate). Soluble in acid, ammonium salt, glycerin, soluble in water, alcohol, is insoluble in water solution to the skin, alkaline, fabric have corrode action.

Use:

Used as carbon dioxide acidity gas such as absorbing hard water softener, disinfectants, making acid agents. Widely used in pharmaceutical, in organic synthesis.

Details:

Test item

Specification

Reagent grade

Pharmaceutical grade

Appearance

Conform

Conform

Assay /%

≥95.0

≥93.0

Hydrochloric acid /%

≤0.05

≤0.1

Chloride (Cl)/%

≤0.01

≤0.02

sulfur(SO4)/%

≤0.2

≤0.3

Ferric (Fe)/%

≤0.01

≤0.02

Alkali metal and magnesium (MgO)/%

≤0.5

≤0.75

Heavy metal(Pb) /%

≤0.002

≤0.003

Ammonia water insoluble/%

≤0.25

≤0.5

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Q:How to see the whole bread of the alkali alkali small
Look. Cut the dough to see, such as the distribution of uniform distribution of sesame grain size of the hole, indicating that the base is appropriate; such as the emergence of small holes, was slender strip, dough color yellow, that the alkali put more; Uniform macro, dough color dark, that the alkali put less.
Q:What are the characteristics of the composition of the base?
Metal ions and hydroxide ions
Q:And how to do the big face ah?
In fact, the biggest drawback of alkali is the steaming steamed bread turned yellow does not look good, but the big baked bread is very delicious ah ~ I feel better than the normal bread ~ ~ I think their family to eat, but also eat only The most important
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:Why does not the base noodles rub?
Yes, you are not practicing
Q:What is the use of alkali?
From acid and alkali combined effect
Q:Does the alkaline battery pollute the environment?
It is understood that, in order to maintain the sustainable development of the battery industry, China Battery Industry Association to "environment-friendly and harmonious development" as the theme, in August this year, organized a nationwide "green alkaline manganese battery products" evaluation activities. After testing, Guangzhou Hutou Battery Group Co., Ltd. production of "555" brand alkaline manganese batteries and other 11 key enterprises of alkaline manganese batteries mercury content are lower than the mercury-free mercury content limit indicators, in full compliance with the provisions of the national nine ministries.
Q:What is the difference between baking base and common base?
What the main content of ah, is not a thing. Baking alkali refers to caustic soda, caustic, caustic soda, and molecular sodium hydroxide, while the commonly used edible base refers to sodium carbonate.
Q:What is called alkali recovery
Alkali recovery treatment method is to solve the problem of black liquor is more effective way, through the black liquor extraction, evaporation, burning, causticization of the four main sections, black liquor can be SS, COD, BOD together and completely removed, and recyclable Alkali, resulting in secondary steam (energy). However, the alkali recovery system has high technical requirements and high investment in equipment. Since the small and medium sized paper mills are generally unable to bear the high cost of building the alkali recovery system, the alkali recovery system is only mainly used in large paper mills. In addition, the straw pulp produced white mud in the high silicon content, easy to burn back into lime, white mud may cause secondary pollution.
Q:What is the big base?
Large alkali is the main component of sodium carbonate.

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