Lead(II) sulfide detailed comprehensive description
As we all know,everything has two sides, Lead(II) sulfide is not an exception,it has both advantages and disadvantages. Nowadays，it is common to be use in electronic devices.It is always called sulphide by general people.Is it an inorganic compound?The answer is yes.And its formula is Pbs.Now,let me tell you something about this product.
Nowadays, Lead(II) sulfide is more and more popular,because it can bring much advantages to people.In my opinion,it plays an important role in people’s daily life.It has some outstanding properties.At fist,it is brack powder,but it looks silverymetallic crystals sometime.It has two states which are solid and powdery.At the same time,it can sink in water.
Next, we should talk about its reaction.The first,you can add hydrogen sulfide to solution of lead ions gives this black product which is consisting of PbS.If you don’t have hydrogen sulfide ,you can use sulfide salts to replace it,the effects are the same.The solid of it can react with aqueous hydrochloric acid to form solid lead (II) chloride and dihydrogen sulfide gas.In fact, the sulfur dioxide can be converted to sulfuric acid under certain conditions.Pbs is the same as PbSe and PbTe in some points,why I do say so,because they are the semiconductor.But the lead sulfide was earlier than others to be used as a semiconductor.
Why more and more customers want to buy Lead(II) sulfide,the reason is that it has a lot of applications,it is necessary and important to our country’s development and construction.First, Lead(II) sulfide can be used as a black pigment at long time ago.It is widely known as detection element materials,so it is common used as an infrared detector by customers.What’s more,it can be used to measure radiation. How its process?There are two ways,first,it can through the photocurrent the photons which hit it,than it can perform the measuring;second,it can through the change in material's electrical resistance.In my opinion,this methor is widely used by people.Most important of all, Lead(II) sulfide is sensitive to the wavelengths radiation at room temperature.Don’t PbS can be cooled?Now, I want to give an example to explain this.Using some liquid nitrogen and then to shift its sensitivity range to between approximately 2 and 4 μm.The emit radiation still have to be quite hot—several hundred degrees Celsius.As we all know, indium antimonide (InSb) and mercury-cadmium telluride (HgCdTe) can be also used to detecting the longer IR wavelengths. PbS has high dielectric constant,so it is low detectors than others.
However, just like everything has both its good and bad sides .Lead(II) sulfide also has its own disadvantages.It can create some serious problems as well.It is toxic when lead and sulfur are heated,because it can produce sulfur oxide when they are heated,the consequences is specially serious in a fire.It can’t be soluble in the PH of blood.So if you are using this product ,you should be very carefully.
More and more people begin to research its effect because of its disadvantages. Colourless sulfur bacteria can be used to treat the sulfide which is in the wastewater.Which methor will become the development direction in the future.Because it doesn’t need catalyst,and it is no chemical sludge,it can also process quickly and efficiently. In the industry which is with natural gas,oil and coal for raw material ,all kinds of sulfide raw materials in process are easily down into hydrogen sulfide,subject to the corrosion are common. Materials are always corroded by hydrogen sulfide ,and the form of corrosion and damage are varied.Including a complete corrosion, pit corrosion, hydrogen blister, hydrogen induce way crack, hydrogen brittleness and sulfide stress corrosion cracking, etc.
From what has been mentioned above,we can draw the conclusion that .Lead(II) sulfide has many good advantages,at the same time,it has some disadvantages.But if people can use it carefully,actually,its benefits is more than its harm.In the future,I believe that it will bring more benefits to our country.