-
Barium hydroxide absorbs carbon dioxide rapidly from the air.
into carbonate.
After that, it cannot be completely dissolved in water. Relative density.
Melting point 78 (octahydrate, in the case of pure barium hydroxide is 408). Refractive index. Highly toxic. It is highly corrosive. It is used to determine carbon dioxide in the air. Chlorophyll.
quantification. Refining of sugar and animal and vegetable oils. Boiler water detergent. Insecticide. Rubber industry.
-
Barium hydroxide is not a precipitate, barium sulfate, barium carbonate and the like are.
-
Ba(OH)2 barium hydroxide is a strong base that can be soluble in water and is not a precipitate.
-
Barium hydroxide: a colorless transparent crystalline or white powder.
-
Barium hydroxide is an inorganic substance with the chemical formula Ba(OH), colorless transparent crystals or white powder. The hydrate can lose 7 molecules of crystal water in the sulfuric acid dryer, and about 78 lose all the crystal water.
Soluble in water, methanol.
Slightly soluble in ethanol.
Almost insoluble in acetone.
If carbon dioxide is rapidly absorbed from the air and turned into carbonate, it cannot be completely dissolved in water. Relative density, melting point 78 (octahydrate compound, in the case of pure barium hydroxide is >> 408), refractive index, high toxicity, strong corrosiveness.
-
Barium hydroxide: a mass of slippery colorless transparent filial piety crystalline or ruined or white powder.
-
<>Barium oxideIt is one of the alkalis dissolved in water by hydrogen coarse barium oxide, and the temperature is more than 600 decomposed into barium oxide, the main use of barium hydroxide is to make special soap, insecticides, and also used for hard water softening, beet sugar refining, boiler descaling, glass lubrication, etc., for organic synthesis and barium salt preparation.
Barium oxide decomposes slowly in the air. It is insoluble in water, but can slow down the hydrolysis of rocks.
Although barium hydroxide is not polluting to the environment, it contains strong alkaline, and contact with animals and plants should be avoided.
In addition, workers who have been exposed to barium compounds for a long time may experience weakness, shortness of breath, salivation, swelling and erosion of the oral mucosa, rhinitis, conjunctivitis, hair loss, etc.
Barium hydroxide is not a precipitate, it is a strong base.
Due to the strong alkalinity of barium hydroxide, barium hydroxide has a corrosive effect on **, paper, etc.
-
Barium hydroxide is a base, most bases are insoluble in water, and barium hydroxide is one of the few bases that can be soluble in water.
Colorless, transparent crystals or white powder. In the sulfuric acid dryer, 7 molecules of crystal water can be lost, and about 78 all crystal water can be lost. Soluble in water, methanol, slightly soluble in ethanol, almost insoluble in acetone.
If carbon dioxide is rapidly absorbed from the air and turned into carbonate, it cannot be completely dissolved in water. Relative density. Melting point 78 (octahydrate, in the case of pure barium hydroxide is 408).
Refractive index. Highly toxic. It is highly corrosive.
It is used to determine carbon dioxide in the air of hand retardation. Quantification of chlorophyll. Refining of sugar and animal and vegetable oils.
Boiler water detergent. Insecticide. Rubber industry.
Physicochemical constants of barium hydroxide:
GB No.: 61021
AS number: 17194-00-2
EINECS Number: 241-234-5
hs code:28164000
un no.:1564
Chinese name: barium hydroxide.
Chinese aliases Barium hydroxide anhydrous; Anhydrous hydroxide local flushing barium.
Product Name:Barium hydroxide English alias BA(OH)2; barium hydroxide, alpha; bariumdihydroxide; bariumhydroxide(ba(oh)2); bariumhydroxide,anhydrous
Chemical formula: BA(OH).
-
Barium hydroxide is not a precipitate.
Introduction to Barium Hydroxide:
Barium hydroxide is not a precipitate, it is a strong base. Barium hydroxide is one of the bases dissolved in water, and the temperature above 600 degrees Celsius is decomposed into barium oxide. Because barium hydroxide is strongly alkaline, barium hydroxide has a corrosive effect on **, paper, clothes, etc.
Physical Properties: Density:.
Appearance: White crystalline powder.
Solubility: soluble in hot water, less solubility in cold water, slightly soluble in ethanol, soluble in dilute acid.
Chemical properties: 1. Ba(OH)2 has strong alkalinity, and its alkalinity is the strongest among alkaline earth metal hydroxides, which can make phenolphthalein solution red and purple litmus blue.
2. Ba(OH)2 can absorb carbon dioxide from the air and convert it into barium carbonate: BA(OH)2 + CO2 = BAC3 + H2O.
3. Ba(OH)2 can have a neutralization reaction with old acid, in which sulfuric acid forms a precipitate: BA(OH)2 + H2SO4 = BASO4 + 2H2O.
Uses and precautions for use of barium hydroxide:
Uses: 1. Used as a catalyst for the synthesis of phenolic resin, the polycondensation reaction is easy to control, the prepared resin has low viscosity, fast curing speed, and the catalyst is easy to remove.
2. The reference dosage is 1% of phenol. It is also used as a catalyst for water-soluble urea-modified phenol formaldehyde adhesive, the curing product is light yellow, and the divalent barium salt remaining in the resin does not affect the dielectric and chemical stability.
3. It is used as an analytical reagent, and is also used to separate and precipitate sulfate and make barium salts, to determine the quantification of carbon dioxide and chlorophyll in the air, the refining of sugar and animal and vegetable oils, the cleaning agent of boiler water, pesticides, and rubber industry.
Precautions for use:
1. Respiratory system protection: When you may be exposed to its dust, you must wear a hood-type electric air supply filter dust-proof respirator. In case of emergency rescue or evacuation, it is recommended to wear an air respirator.
2. Eye protection: protection has been made in respiratory system protection.
3. Body protection: wear rubber acid-alkali resistant clothing.
4. Hand protection: wear rubber acid-alkali resistant gloves.
5. Others: Smoking, eating and drinking are prohibited on the work site. After work, shower and change clothes. Store clothes contaminated with poisons separately, wash them and set them aside. Practice good hygiene.
-
Hydroxide is a precipitate.
Barium hydroxide cannot be completely soluble in water if it rapidly absorbs carbon dioxide from the air and becomes carbonate. Relative density. Melting point 78 (octahydrate, in the case of pure barium hydroxide is 408).
Refractive index. High toxicity is the wheel. It is highly corrosive.
It is used to determine carbon dioxide in the air. Quantification of chlorophyll. Refining of sugar and animal and vegetable oils.
Boiler water detergent. Insecticide. Rubber industry.
I feel that because a small amount of sodium bisulfite is added to the barium hydroxide solution, it means that BA(OH)2 is excessive, and the HSO3 roots should be used up, so there should be no SO3 roots left, and the equation should be HSO3-+(BA2+)+OH-)==BASO3 (precipitation) + H2O. If barium hydroxide is added to the sodium bisulfite solution in reverse, it is the formula in the title above. >>>More
It can't under normal conditions, but it doesn't necessarily fail to respond under extraordinary conditions. >>>More
Calcium hydroxide (calciumhydroxide) is an inorganic compound with the chemical formula Ca(OH)2, >>>More
Be. Electrolytes are compounds that are capable of conducting electricity in an aqueous solution or in a molten state, such as acids, bases, and salts. Compounds that do not conduct electricity in these cases are called non-electrolytes, such as sucrose. >>>More
Lithium hydroxide (LiOH) is a strong alkali, white crystalline powder. >>>More