What color does lead sulfide react with oxygen to produce lead oxide?

Lead oxide is a yellow tetragonal powder.

When the lead oxide is heated to 300 450, it becomes lead tetroxide, and when it continues to rise, it becomes lead monoxide. Insoluble in water and ethanol, soluble in acetone, nitric acid, liquid alkali, ammonium chloride. It can undergo sclerotic reaction with glycerol. Poisonous.

Lead oxide is used in the manufacture of polyvinyl chloride plastic stabilizers. It is the raw material of other lead salts. In the paint industry, it is used as a drier in paints with oil to make lead soap.

It is used as a plane abrasive for the manufacture of high refractive index optical glass, ceramic enamel, and precision machine tools, and is a medical raw material and rubber colorant.

Yellow tetragonal powder. When heated to 300 450, it becomes lead tetroxide, and when it continues to rise, it becomes lead monoxide. Insoluble in water and ethanol, soluble in acetone, nitric acid, liquid alkali, ammonium chloride. It can undergo sclerotic reaction with glycerol. Poisonous.

1. Molar refractive index: not available.

2. Molar volume (cm3 mol): none available.

3. Isotonic specific volume (: no available.

4. Surface tension (dyne cm): not available.

5. Dielectric constant: none available.

6. Polarizability (10-24cm3): not available.

7. Single isotope mass: da.

8. Nominal mass: 224 DA.

9. Average quality: DA.

Yellow. There are two variants of lead monoxide: one is the red tetragonal crystal, also known as Tantra.

The other is yellow orthorhombic crystal, also known as lead yellow, with a density: grams of cubic centimeters. The transition point between the two is that the conversion is slower below this temperature.

Both are poorly soluble in water. Lead monoxide is soluble in acids; It can also be slightly soluble in strong alkali solutions. Under heating, lead monoxide is easily reduced to metallic lead by hydrogen, carbon, carbon monoxide, etc.

Lead Oxide Physical Property Data:

1. Properties: yellow or slightly reddish yellow powder or fine flake crystals, easy to change color when exposed to light.

2. Melting point ( ) 888 890

3. Boiling point ( ) 1472 (decomposition).

4. Relative density (water = 1):

5. Solubility: insoluble in water, insoluble in ethanol, soluble in nitric acid, acetic acid, hot lye.

Yellow. Lead oxide is a yellow tetragonal powder. When heated to 300 450, it becomes lead tetroxide, and when it continues to rise, it becomes lead monoxide.

Insoluble in water and ethanol, soluble in acetone, nitric acid, liquid alkali, ammonium chloride. It can undergo sclerotic reaction with glycerol. Poisonous.

Uses of Lead Oxide:

1. Used in the manufacture of polyvinyl chloride plastic stabilizer. It is the raw material for other lead salts.

2.Plane abrasives for the manufacture of high refractive index optical glass, ceramic enamel, precision machine tools, 3Lead glass and radiation-proof rubber products for electron tubes, picture tubes, optical glass and X-ray protection;

4.It is used for chemical analysis, such as the determination of gold and silver, and the precipitation of amino acids.

5.It is used for the preparation of soluble lead salts in lead plating and alloys, such as the preparation of lead fluoroborate, etc.;

6.In the paint industry, it is made into lead soap with oil, and is used in petroleum, rubber, glass, enamel and other industries.

There are two types of reduction products: PBO and SO2, which are both reducing products of the oxidant O2.

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Hello, sulfur trioxide reacts with lead oxide, i.e. tangerine is SO2 and PBO reaction, it is a chemical reaction, and the reaction equation is: SO2 + PBO4. During the reaction, sulfur trioxide and lead oxide undergo oxidation reduction reaction, sulfur trioxide oxidizes to sulfur dioxide, and lead oxide is reduced to lead, and finally lead sulfate is formed.

A large amount of heat is released during the reaction, and the reaction rate is fast and can be completed at room temperature.

Answer: Sulfur dioxide reduces lead oxide to aluminum.

Black.

Lead sulfide is a buried inorganic compound, the chemical formula is PBS, black powder, soluble in acid, insoluble in water and alkali, mainly used in the ceramic industry and semiconductor industry, can also be used to prepare metal lead.

On October 27, 2017, the World Health Organization's International Agency for Research on Cancer (IARC) released a preliminary list of carcinogens, and inorganic lead compounds were included in the list of class 2a carcinogens.

**Contact: Remove contaminated clothing and rinse thoroughly with soapy water and water. Eye contact:

Immediately open the upper and lower eyelids and rinse with running water or saline. Medical treatment. Inhalation:

Quickly leave the scene and move to a place with fresh air. Keep your airways open. Oxygen is given when dyspnea is returned.

When breathing stops, artificial respiration is performed immediately.

Medical treatment. Ingestion: Those who take it by mistake should sell a mouthwash ruler, give milk or egg whites, and seek medical attention.

Respiratory protection: Workers should wear dust masks. Wear a gas mask if necessary.

Eye protection: Wear safety glasses. Body Protection:

Wear overalls. Hand protection: Wear protective gloves if necessary.

Others: Smoking, eating, and drinking are prohibited on the work site. After work, shower and change clothes.

Pre-employment and regular medical examinations are conducted. Practice good hygiene.

The difference between lead dioxide and oxygen is as follows:

1.Chemical or spring defect components: Lead dioxide is composed of lead and oxygen elements, the chemical formula is PBO2; Oxygen is composed of the element oxygen, and the chemical formula is the physical properties of the shirt group:

Lead dioxide is a black or brown solid with a density of g cm3 and a melting point of 290; Oxygen is a colorless, tasteless, and odorless gas with a density of g l, a melting point, and a boiling point of -183.

Lead dioxide and oxygen are two different substances, lead dioxide is a chemical compound, and oxygen is an element.

2pds+3o2=2pdo+2so2。

There are two variants of lead oxide: one is a red tetragonal crystal, also known as Tantra. The other is yellow orthorhombic crystal, also known as lead yellow, with a density:

grams cubic centimeters. The transition point between the two is that below this temperature, the transformation is slower and slower. Both are poorly soluble in water.

Lead monoxide is soluble in acids; It can also be slightly soluble in strong alkali solutions. Under heating and dispersion, lead monoxide is easily affected by hydrogen, carbon, and carbon monoxide.

and so reduced to metallic lead.

Lead Oxide Physical Property Data:

1. Properties: yellow or slightly reddish yellow powder or fine flake crystals, easy to change color or burn when exposed to light.

2. Melting point ( ) 888 890

3. Boiling point ( ) 1472 (decomposition).

4. Relative density.

Water = 1): 5. Solubility: insoluble in water, insoluble in ethanol.

Soluble in nitric acid. Acetic acid, hot lye.

2pbs+3o2——2pbo+2so2。

Lead sulfide can be prepared by hydrogen sulfide through an acidic lead nitrate solution or by heating lead carbonate with sulfur. Lead and its compounds damage hematopoiesis, nervous system, digestive system and kidneys. Occupational poisoning is predominantly chronic.

The main manifestations of the nervous system are neurasthenic syndrome, peripheral neuropathy (with obvious motor function involvement), and in severe cases, lead-toxic encephalopathy. digestive manifestations include lead gingival line, loss of appetite, nausea, bloating, diarrhea, or stool; Colic is seen in moderate to severe cases. Hematopoietic system damage, porphyrin metabolism disorders, anemia, etc.

Acute or subacute lead poisoning can occur with short-term exposure to large amounts and behave similarly to severe chronic lead poisoning.

Oxygen (chemical formula: O2), chemical formula: , colorless and odorless gas, oxygen contains the most common elemental form of pre-elimination elements.

Melting point, boiling point -183 . It is not easily soluble in water, and dissolves about 30ml of oxygen in 1L of water. Oxygen accounts for about 21% of the air.

Liquid oxygen is sky blue. Oxygenation is a blue crystal. It is not very active at room temperature, and it is not easy to interact with many substances.

However, it is very active at high temperatures and can be directly combined with a variety of elements, which is related to the electronegativity of oxygen atoms second only to fluorine.

Reaction phenomenon and equation of lead sulfide and hydrogen peroxide: PBS+4HO ==PBSO+4HO

h o embodies oxidation, and lead sulfide is oxidized by hydrogen peroxide to lead sulfate.

The reducing agent is PBS, and the S in PBS increases from -2 to +6.

Lead sulfide can be prepared by hydrogen sulfide into an acidic lead nitrate solution or by heating lead carbonate with sulfur and is a black cubic crystal.

PBS, the Chinese name is lead sulfide (the real name is lead sulfide, different from tin, lead element +4 valence crown "high", +2 valence crown "positive"), can be made by hydrogen sulfide into acidic lead nitrate solution or by heating lead carbonate and sulfur, is a black cubic crystal.

The Chinese name is lead sulfide.

Foreign name lead sulfide

Attributes. Inorganic compound terminology.

Molecular formula: PBS

Appearance and character.

Blue cubic crystals.

There are many oxides of lead, including PBO, PBO2 and mixed oxides (such as PB2O3, etc.). PBO is amphoterically alkaline, soluble in acetic acid or nitric acid, and insoluble in alkali. PBO + 2HAC = PB(AC)2 + H2O PBO3 + 2HNO3 = PB(NO3)2 + H2O PBO2 is amphoterical, but its acidity is greater than that of alkali, and it is slightly soluble in alkali to form leadate and insoluble in nitric acid.

pbo2 + 2naoh = na2pbo3 + h2o