6 Water chlorine iron solution for etching. ← Laptop heater with his own hands (04.06.2016)

Chlorine Iron solution used for etching printed circuit board

it is customary to prepare on the basis of the proportion of 1/3 (1 of the iron on the 3-way of water, and not the opposite;)) by weight.
the solution should be prepared in a heat-resistant non-metallic container in which water flows
with a temperature of 50-70 ° C (check very simple, tactile, if the hand in the water you can't keep it t\u003e 70 ° C)
it is preferable to use boiled water, in the extreme case will go hot from under the tap. at all
on the mind you need to use distilled, but in practice no one bothers as the difference
by and large there is no.
chlorine iron must be poured into water (not the opposite !!!) add it to small portions,
on the floor of a teaspoon at a time (remember that metal items when working with chlorine gland do not use,
and then the spoon is kicked later the wife will choke :)) continuously stirring the solution. When dissolving each
portions Water will heat up, a rather stormy reaction (carefully all boils and hits!) When dissolved
there will be a pair above the surface of the water, it is extremely recommended to inhale them !!!
for dissolution will have to spend 20 minutes (everything depends on the volumes) but the iron is completely dissolved
and it does not fall on the bottom of the black crust, it will not be boosted by a solution, melting containers, you will not burst
3 banks and linoleum do not have to change in the kitchen :) So it is not necessary to hurry, fast only ....
after that, it is necessary to give a solo to a solution of minutes after 20 in it will begin to settle iron hydroxide (rust)
which is always contained in chlorine iron powder and which prevents etching. It is better to give solutions
there is a night, at the bottom of the capacity there will be all the garbage of which in the chlorine gland there is a lot. then
it is necessary to profil the solution into the clean container in which it actually will be stored, the solution can be
it is easily stored in a plastic bottle (chlorine iron as a solution can be kept for how long).
after that, you have a bottle with a clean, transparent, brown solution of chlorine iron in your hands.

Several recommendations for use
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before use, it is desirable to heat the degree solution so up to 40-50 it significantly accelerates the process.
etching, the fee will deteriorate about 10 minutes (instead of 20 :) And when using a boulbulyator, in combination with heating, you can squeeze up to 5 minutes) So you yourself decide to warm, do not warm and how to do it
i'm just before use I throw a bottle with a solution hot water From under the tap ...
each time after use, the solution will lose strength and etching will last longer, up to
several hours, accelerate the etching process will help heating and stirring the solution.
the solution can be restored, for example, by adding hydrochloric acid to it, then part of the hydroxide again
it will be restored to chloride of iron, but in practice it is easier to throw several ordinary nails into the solution,
on them from the solution there is copper and the solution will again get strength, but it is not necessary to abuse it
the solution is new, only threatened it. The solution degrades and gradually change the color from the brown to green.
we will stop at all over, but even in this case it can be "restored", for this you need to evaporate it
and wait until the resulting crystals again do not change the color from green on the brown, after which again
everybody is divorced in the water and rushed down the new :) But all this is advisable for large volumes of such more than 5 liters.
when to pour really sorry. And in practice, the cycle passes so divorced, striving for 20 minutes. Yuzayu until then
as long as the etching process becomes for more than an hour, after which we throw nails in it (if anyone is not aware of unnecessary
pushing them into the container where iron is stored, nails should be put in the bath when etching the board)
thus, extend the life of the gland for another while (depends on the slidness) after which in the garbage.
in conclusion, be very careful with chlorine iron! I recommend all work in gloves,
chlorine iron is well entry into the hands and is poorly washed off by soap, hitting the skin it can cause itching and
irritation, in the flesh to burns in people with sensitive skin, while getting into the eyes, rinse them
number flowing water And consult a doctor.
the reagent on the tiled surface is very difficult to launder, so do not fogge the shell with the toilet,

The third stage of manufacturing printed circuit board - etching.

Typically, chlorine iron (FECL3) is used as a poravil solution. It is not difficult to buy on the radio market, there is a stegrams of about $ 2-2.5 and grabs it for more manufactured printed circuit boards.

Special skills at this stage do not need. We take the textolite and a piece of foam, connect them with bilateral scotch.

It is necessary that it is possible to easily observe the etching process and easily remove the printed circuit board from the chlorine iron solution at the end of etching. Polyfoam does not give textolit to drown.

Take the resulting design and lowered it into a solution of chlorine iron. Capacity for chlorine iron should be only glass, ceramic or plastic (I have plastic packaging from mayonnaise). Chlorine iron must be breeding in a ratio of 100 grams of FECL3 to 150-200 ml of water (with such a ratio takes 40-50 minutes). But I have on this moment 50 grams of FECL3 per 250-300 ml of water (etching time is about 3 - 3.5 hours, it suits me). In general, at the time of etching affects a lot of factors, such as: a concentration of solution, temperature ambient, rhythm of mixing, weather conditions outside the window at the other end of the world (last - joke :-)), etc.

Before lowering the textolite into a chlorine iron for the period of etching, it should be made several times to the solution and carefully view / check for the presence of air bubbles on the surface. Air bubbles are dangerous in that they can spoil the printed circuit board at the place of their finding closer. Eliminate them elementary - just spend your hand on them and they burst. After contact with the chlorine gland, it is necessary to thoroughly rinse your hands with a large volume of flow water.

From time to time, look at the etching process. When it seems that the fee is propagated, browse it into the light, this manipulation will help you make sure. Raverned printed circuit board under running water.

Below is an example of errors when etching:

a) everything robbed perfectly; b) overexposed in the chlorine gland (about 8 hours at my weak solution (just fell asleep and forgotten) 8-)); c) overexposed in chlorine gland + used regular A4 paper (80g / m2), and not dense, glossy.

Now you can go to the next step - removing toner, drilling holes.

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Why do I post the instructions for the manufacture of printed circuit boards at home, because there are enough on the Internet, the more video instructions for the manufacture of printed circuit boards at home are present? Then that not everyone has unlimited Internet, by means of which you can view such a video many times (it's hard to remember the procedure for performing actions in the manufacture of printed circuit boards). And in my instructions, steps are indicated that are omitted in other sources telling about the manufacture of printed circuit boards at home.

bodigard 05-08-2012 19:45

Good time in all

Please tell me which chlorine iron is better to buy to etch blade?

There are 2 options for sale - anhydrous and 6-water.

it is also interesting how much it needs to be 1 liter ...

bracker will be sh /5

thank you in advance for your cooperation!)

vadim79. 05-08-2012 20:08

ETE 05-08-2012 22:16

6-water

Screamed 05-08-2012 22:38

Anhydrous (dark-skinned fine powder) - when dissolved literally boils! Pravita very Yaro! ... For this, he does not love radio amateurs who are hurt ...

6-water - light large brown crystals (in the bank often come along with moisture) - they dissolve well, but poisoning more "gently."

In fact - all the same Kohl, so and so will have to be found ...

alex-wolff. 06-08-2012 12:07

qUOTE: Originally Posted by Skated:

In essence, anyway, so it will have to be escaped ...

+1
HZ in powder to breed only in plastic, the glass bursts from the reaction (strong heating when dissolved in water).

bodigard 06-08-2012 06:25

thank you for your help, I will take anhydrous.

qUOTE: HZ in powder to breed only in plastic, the glass bursts from the reaction (strong heating when dissolved in water).

from the plastic container, only one and a half of the beer comes to mind, another bottle has 5 liter from under impregnation for wood.

and since such an aggressive thing is it hzh then what is it (divorced) to store? ATO I had a case when sulfuric acid concentrated dried off and left, well, even on the street left this thing and not in the house I am also ...

Vladimir 06-08-2012 08:58

qUOTE: and since such an aggressive thing is hz that in what its (broken) store

In polyethylene bottles (banks) as an option from under the battery electrolyte.

Anton42. 06-08-2012 09:40

On the balcony, to a half hundred and a half, the winter was defended, fell silent and poisoned. Water only evaporated a little, fed and again normally. Do not be afraid

alex-wolff. 06-08-2012 10:47

qUOTE: Originally Posted by Bodigard:

so, then the plastic itself is not melted from such heating?

the first rule is dissolving acids in water.
not water pouring (pour) into acid, but an acid into water. it is important.

ETE 06-08-2012 11:39

Always used 6 water, but one day it ended and found it on sale so immediately did not work. I decided to try dry. When breeding in water (in plastic bottle) The bottle is bored on the temperature, the solution partially splashed into the sink, did not get well for me. In the end, it turned out a turbid solution with a rust of rust. She traveled once, since it was spread, and thrown out this nasty to the garbage. Why these experiments, if you can now buy 6 water free.

pivo 06-08-2012 11:54

Iron is still what anhydrous when entering the water becomes scens, connecting water and then dissolve, so it is necessary to pour it less.

Vitaly B. 06-08-2012 12:00

There is another thing:
When he lived in Norilsk, he used one solution for a couple of years, periodically squandered HZH into it, the blades were also perfect, Damascus got a very contrasting and mirror (with a mirror polishing)
Now living in Kurgan has already bought the second bank and not that ... Practice is normal, but the mirror has become dark, that is, the drawing on Damascus is not a contrast, layers who should be blond, too, they are darker. I make a weak solution, weaker pokes, in the end I hold longer and the result is the same, it is clear that the shallow skin is to dwell for contrast, but not that, before the rut with acetone, a black contrast drawing in a mirror blade ....
Maybe water is not that?
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With respect, Vitaly.
www.vitaliknife.ru.

hunter1957. 06-08-2012 16:09

qUOTE: Maybe water is not that?

In general, all solutions for etching or electroplating are recommended to do on distilled water ...

bodigard 07-08-2012 07:44

hmm, before etching, it is apparently so it will not happen to this SHH15 (or SHH4 or SHH20SG or SHS9 or Hooks Understand that it is)

i fell it from light orange to the red, the body of the blade completely dug
by the way, it seems to go around as a drill, a bit difficult and cracked on the red donut, I had to drink then

on a rough carnille (spark during lacing, too, the duke is similar to the drill), then I heard it up to 810-830, let it cool in the air
next, again to this temperature and in the oil, almost did not learn
a file sliding, glass with difficulty but scratches

for the sake of interest, I decided to break the edge, it was easily, pliers, the grain at the same time as on the layer of the file, was upset, put it even to release, but already at ~ 300, it became a blue blast, trying to break down the pliers from the tip more, it was easily dismissed, as if did not let go With longer temperatures ...

by the way, it was quite thin, about 1-1.5 mm

i disappointed with these dances with a tambourine and geadays of steel brand on bearings, tags and the like

Vitaly B. 07-08-2012 12:48

It was necessary after the forging, before the tempering to make annealing, normalization. On vacation, the grain will not become less.
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With respect, Vitaly.
www.vitaliknife.ru.

bodigard 07-08-2012 14:29

qUOTE: the grain will not become less.

so grain then it seems like a normal, finger pad roughness is almost not felt and the nail is felt clearly, I have the same on a broken file an old one.
or is it even smaller?

and it breaks easily. I think because of the faithful modes that arise from the wrong assumption about the steel brand.

about the annealing after forging - so it seemed to write and more than once that the annealing need to be done to the forging, so that it was easier to go and less cracks was, and after forging and lasters only normalization ... Or did I understand everything?

konstet. 25-09-2012 10:23

Tell me how to breed 6 water?

bodigard 25-09-2012 11:37

qUOTE: Tell me how to breed 6 water?

in the water with small portions, raw and control the temperature of the composition.

from the fortress of the solution will be dependent only the time of etching, so I think it will be easy to pick up convenient for yourself

he himself spread 250 grams per liter about, however, anhydrous, satisfied with the result.

with respect.

konstet. 25-09-2012 13:13

I'm going to train Blade from Mehpila (to rust less), how much to ride and how to determine what is enough?

Shumak 25-09-2012 14:30

qUOTE: Originally Posted by Vitaly B:

Maybe water is not that?

Try ethyl alcohol add, gram 50 per liter. It helps the drawing to pull out.

griff63. 25-09-2012 21:13

Well, once the topic went, then I will ask. When is enough to ride? And so it should be that etching is easy to remove?

Nikolay_K. 25-09-2012 21:58

1) It is advisable for water to take a distilled or at least boiled and resistant

3) Adding ethyl (or other aliphatic, such as propyl or butyl) alcohol improves wettability

4) If you want to accelerate etching, then the solution must be heated

5) After the etching actually it will be useful to shove the blade for a short time into a solution of orthophosphoric acid, this will fasten the etching and give increased corrosion resistance.

voba. 26-09-2012 12:43

slide the blade for a while in an orthophosphoric acid solution

how much percent district?

Nikolay_K. 26-09-2012 02:12

qUOTE: Originally posted by voba:

how many percent of Rr?

Report 26-09-2012 07:50

on the carbon and the right with her, dark etching will still fit. to light gray. What and how not torture.
on high-alloyed type X12, the coating is very good even if it is dark.

Burchitai. 26-09-2012 09:12

qUOTE: Originally posted by nikolay_k:

2) It is useful to add a little acid to the solution, better than salt

Nikolay_K. 26-09-2012 16:01

qUOTE: Originally posted by buchithitai:

the effect is the same as the dilution of chlorinated water

no, not the same.

Chlorination does not affect pH (acidity),
and acidification affects and very much.

Synonyms: iron chloride (iron chloride solution), chlorine iron.

Description: Chlorine Iron solution It is an eager non-leisure brown liquid. The product meets the requirements of the service station 00203275-228-2009

Chemical characteristics of chlorine iron

Depending on the time of year, the air temperature, the chlorine iron is produced by 1 or 2 varieties.

Physical characteristics of chlorine iron

Molecular mass: 162.21 g / mol

Boiling temperature ranges in the range: 100-106 ° C.

The pH value is approximately equal to 1 to 2.

When etching copper in a solution of chloride glands, the maximum dissolution capacity of 100 g. / 1 \u200b\u200bliters. The rate of etching at 50-55 ° C is 4.3 - 5 μm / min.

Density of aqueous solutions of iron chloride Presented in Fig. 1:

Scope of hydraulic iron

Chlorine iron is used in such industries such as: treatment facilities, water channels, metalworking, chemical, food, brewery, leather, oil, etc.

Basic Application of Iron Chloride Solution It is necessary to clean industrial and wastewater, as the primary coagulant. Under the action of iron chloride, a physico-chemical process of enlargement, sticking of small particles (coagulation) occurs, which contributes to falling out of a colloidal solution of a flaky precipitate, or the formation of gel, which, in the future, is easily removed from the cleaned wastewater. When purifying with chlorine glands, the amount of insoluble impurities in wastewater decreases to 95%, soluble to 25%.

Compared with some coagulants, iron chloride has several advantages, it is:

• quite high impurity precipitation rate.
• a positive effect on the biochemical decomposition of besieged impurities, active il.
• lower cost compared to other common coagulants.

Also, iron chloride is used:

• as a catalyst in organic synthesis processes.
• to etch metals (printed circuit boards, printed forms)
• how rubbing with tissue dye.
• as an additive to increase concrete strength.

Harvest class of chlorine iron

Iron chloride solution is an eager non-leisure, corrosive liquid.

Fire and explosion-proof.

When entering the skin, chlorine iron causes irritation, itching, dry skin, dermatitis. If you get into the eye, irritation of the mucous membrane causes irritation. Skin cleanings or eyes should be immediately rinsed with an abundant amount of water, if necessary, consult a doctor. When working, it is necessary to use individual means of protection.

UN number 2582.

Packaging, transportation and storage of chlorine iron

Transported by any type of transport in accordance with the rules for the transport of dangerous goods acting in this type of transport.

The solution is transported in steel gummed railway or car tanks, as well as in special containers with a capacity of up to 1000 dm3.

Iron chloride should be stored in humated, titanium or polyethylene tanks.

In the cold season, the storage of the product is produced in closed warehouses in compliance with the temperature regime.

The warranty period of storage is one year from the date of manufacture.

Mandatory certification is not subject to.