Aluminum hydroxide is a white gel, so is it a precipitation?

It's not precipitation, it's colloidal, upstairs, did you study chemistry in high school, there are three states of substance in the liquid, dissolve into it, precipitate, and there is one in between, colloid, it neither precipitates nor dissolves, like iron hydroxide, aluminum hydroxide are colloids.

Look at the encyclopedia. Notice that there is a sentence in it:

Common colloids: Fe(OH)3 colloid, Al(OH)3 colloid, silicic acid.

Colloids, starch colloids, proteins, blood, soy milk, inks, paints, soapy water, AG2S, AS2S3

It's precipitation. Because of Al(OH)3 in water

Even if it is strong**.

words also. It does not dissolve into a solution.

A translucent system is formed.

So it doesn't belong.

Precipitation. But it's a bit flocculent.

So it's gelatinous!! Precipitation.

A classmate. al(0h)3

When doing metabiolysis again.

You can see obvious precipitation in a few more drops!

The relationship between colloids and precipitates is the largest.

For example, add two drops to Al3+ hot water.

Naoh, you could say he is.

Colloid. But a large amount of al(0h)3 generally appears

It's basically precipitation.

LS's attention rhetoric.

There is no need for personal attacks.

I've done experiments.

Colloids are there for him, yes.

But what is generally obtained is precipitation, and what is obtained under normal conditions is generally.

al(oh)3

You're going to specialize in colloids.

It was he and fe(oh)3 who made it

The same if. Put it directly.

FeCl3 and NaOH

Mix what you can say colloidally.

No way.. I did.

Glued a test tube.

Take hydrochloric acid before washing it off.

The boundary between colloids and precipitation is inherently unclear.

Phase silicic acid. It is generally said to be precipitation.

It's not bad to put him in colloids either.

So al(0h)3

You have to say that he is colloidal.

To say that precipitation is also made.

But most of the time what you encounter is precipitation.

Very little colloids...

PS again: Chemistry is this thing.

I really did the experiments to find out.

Chemistry is a discipline based on experiments.

The definition of colloids is abstract.

I don't know until I really make it.

Anyway, it's precipitated even when it happens.

Colloids can also ...

But it cannot be said that it is not precipitation.

First of all, in the question.

Gram. 4,48 liters.

Gram. The symbols in are all taken as decimal places (otherwise they can't be calculated) (if there is a mistake, please point out) set: n(al(oh)3)=x

mol，n(mgco3)=y

mol，n(nahco3)=z

mol78x+84y+84z=

Equation 1) Excess sulfuric acid is added to produce liters of gas under standard conditions.

These gases are definitely CO2, and the amount of matter is: N(CO2) = conservation of molc element mass, get:

y+z=Equation 2) continue to add to the solution after the reaction.

Overdose. of sodium hydroxide solution, generating grams of white precipitate.

Because. Overdose.

So only Mg(OH)2 precipitates.

Mg elemental mass is conserved.

58y=Equation 3) Solve three equations and get:

x=，y=，z=

So, n(al(oh)3)=

mol，n(mgco3)=

mol，n(nahco3)=mol

Aluminum hydroxideIt is a precipitation, and the form of aluminum hydroxide precipitation is a white colloidal precipitation.

Aluminium hydroxide with the chemical formula Al(OH)3, is the hydroxide of aluminum.

Aluminum hydroxide can react with acids to form salts and water as well as strong bases to form salts and water, so it is an amphoteric hydroxide.

Because it is acidic, it can also be called aluminic acid.

h3alo3）。

However, when it actually reacts with a base, it produces tetrahydroxyaluminate ([Al(OH)4]-), a white gelatinous substance that is almost insoluble in water.

The antacid effect is slow, long-lasting, strong, astringent, mucosal protective, causes constipation, does not produce CO2 (carbon dioxide, acid-free.

Aluminum hydroxide is indeed a precipitate in aqueous solution because its solubility is insoluble.

It is a white gelatinous precipitate. In the aluminum sulfate solution, the alkali solution is added under stirring to generate a precipitate that is washed, filtered, and dried at low temperature, and then crushed to obtain the finished product. The dehydrated paste can also be used directly as a product.

Aluminum hydroxide is a white powder. Colloidal precipitates are generally not formed by the dissolution of aluminum hydroxide, but by the hydrolysis reaction of aluminum salts. The presence of a large number of hydroxide anion ions will form a suspension of aluminum hydroxide, which has no water purification capacity.

The presence of a small amount of hydroxide can form a colloidal aluminium hydroxide, which has a large surface area and can purify water.

Aluminum hydroxide is the largest and most widely used inorganic flame retardant additive. As a flame retardant, aluminum hydroxide can not only be flame retardant, but also prevent fumes, do not produce drippings, and do not produce toxic gases, so it has been widely used and its use is increasing year by year. Scope of use:

Thermosetting plastics, thermoplastics, synthetic rubber, coatings and building materials industries. At the same time, aluminum hydroxide is also the basic raw material of aluminum fluoride necessary for the electrolytic aluminum industry, and aluminum hydroxide is also widely used in this industry.

Question 1: Is aluminum hydroxide a precipitate? Be.

Al(OH)3 exists in a colloidal state, and its dispersed particles are between 1 nm and 100 nm.

When the colloidal precipitation of Al(OH)3 accumulates, it becomes a white colloidal precipitate.

You can use this property to purify water.

Question 2: Is aluminum hydroxide precipitated Yes, a sinking symbol should be added after the reaction.

al-floating oh)3

Hope it helps you o(o

Question 3: What is the form of aluminum hydroxide precipitation The form of aluminum hydroxide precipitation is white colloidal precipitation.

Aluminum hydroxide, chemical formula Al(OH)3, is the hydroxide of aluminum. Aluminum hydroxide can react with acids to form salts and water and strong bases to form salts and water, so it is also an amphoteric hydroxide. The chemical formula Al(OH)3 is a hydroxide of aluminum.

Because it is acidic, it can also be called aluminic acid (H3alo3). However, when it actually reacts with a base, it is tetrahydroxyalaluminate ([Al(OH)4]-), aluminum hydroxide is insoluble in water.

Question 4: Is aluminum hydroxide a precipitate? Be.

Al(OH)3 exists in a colloidal state, and its dispersed particles are between 1 nm and 100 nm.

Question 5: Is aluminum hydroxide a white colloidal precipitate or a white flocculent precipitate? High School Chemistry Flocculent.

Question 6: Are aluminum hydroxide and magnesium hydroxide precipitated They are both white precipitates, but aluminum hydroxide can react with sodium hydroxide, and the precipitation will slowly disappear (oh-excess), while magnesium hydroxide cannot.

Both can react with acids.

Question 7: Is aluminum hydroxide a precipitation? It is a white gelatinous precipitate.

Question 8: Is aluminum hydroxide a precipitation? Solve with urgency Yes.

The presence of aluminum hydroxide precipitate is related to the pH of the solution, which is basically insoluble in water within 4 11 and is stable in flocculent solids.