Evaporust - first time user / review

[Ross365]

I don't think anyone knows what's in Evaporust; the Safety Data Sheet is not informative. I think you'll have to do your own tests on a small area.

When you talk about acids, their reactivity covers quite a spectrum, so there's vinegar and citric at one end and hydrochloric far out at the other.
I think that if you put your door strikers in citric solution, and reactions would be quite slow, giving you chance to assess what's going on and stopping it if you don't like what you see before real harm is done.

 

[Ianb]

Good idea thanks.

 

[jonclancy]

Has anyone tried Rust-E? Seems to be a Brit version of Evaporust, but about a fiver cheaper per 5L. Anyone know where Evaporust can be had for less than £36 per 5L pse?

 

[rtcosic]

I don't think anyone knows what's in Evaporust; the Safety Data Sheet is not informative. ....

Lots of discsussion in the comments about what might or might not be the sercret sauce in Evaporust.

To my jaundiced eye the simple citric acid was perfectly acceptable cheap option.

 

[Sergei Slovenija]

Lots of discsussion in the comments about what might or might not be the sercret sauce in Evaporust.

To my jaundiced eye the simple citric acid was perfectly acceptable cheap option.

Bingo

 

[Farside]

Phosphoric acid is dirt cheap anyway, and no way would I pay through the nose for branded over-priced stuff.

 

[JOEPRO]

Bingo

View attachment 424769 View attachment 424770

What does this mean then? Is that the exact formula of evaporust(?) Is it possible to produce some at home then...

 

[fractured]

Is that water, phosphoric acid (in some form) and an emulsifier?

 

[Sergei Slovenija]

What does this mean then? Is that the exact formula of evaporust(?) Is it possible to produce some at home then...

Information is disclosed by law about the content of chemicals in the product that have a CAS number.

 

[rtcosic]

Water is water.
Diammonium phosphate is just fertilizer, but has a CAS no 7783-28-0, so I haven't figured out the 'active ingredient'.
Sodium Petroleum Sulphonate is 'just' a surfactant or wetting agent.

 

[Sergei Slovenija]

Is that water, phosphoric acid (in some form) and an emulsifier?

I don't see any form of phosphoric acid. Sodium salt of sulfonic acid is. It is a very strong acid and very interesting. When I have time, I’ll order these reagents and try it. The recipe is not as simple as it seems, IMHO.

 

[Sergei Slovenija]

Sulphamic Acid (Sulfamic) - Descaler / Rust Remover​

Buy Sulphamic Acid Descaler, Metal Cleaner & Rust remover UK - Boilers

Sulphamic acid - Powerful Descaler, Rust & Limescale Remover. Excellent cleaner for Toilets, grouting, boilers, metal, ceramics. Dissolves efflorescence and other mineral deposits. 100g to 25kg packs. Prices include delivery

mistralni.co.uk

 

[fizzy]

Sulphamic Acid (Sulfamic) - Descaler / Rust Remover​

Buy Sulphamic Acid Descaler, Metal Cleaner & Rust remover UK - Boilers

Sulphamic acid - Powerful Descaler, Rust & Limescale Remover. Excellent cleaner for Toilets, grouting, boilers, metal, ceramics. Dissolves efflorescence and other mineral deposits. 100g to 25kg packs. Prices include delivery

mistralni.co.uk

That was my thought on the ingredients as well - not phosphoric acid!
Sounds like it will do the job!
Combined with a surfactant of course.

 

[fizzy]

Sulphamic Acid/ Sulfamic Acid | Bonnymans

LARGER SIZES AVAILABLE ON REQUEST - PLEASE CONTACT FOR PRICING Sulfamic acid, also known as amidosulfonic acid, amidosulfuric acid, aminosulfonic acid, and sulfamidic acid, is a molecular compound with the formula H3NSO3. This colorless, water-soluble compound finds many applications. CAS No...

www.bonnymans.co.uk

Has many uses - denture cleaning tables and fire extinguishers amongst many others!
Looks like it might do the job though.

 

[fizzy]

Pardon our interruption...

Seems to be the cheapest for smaller amounts - just bought 500gm to try.

 

[rtcosic]

Pardon our interruption...

Seems to be the cheapest for smaller amounts - just bought 500gm to try.

The CAS no of Sulphamic Acid is 5329-14-6

So whilst it can be used as a derusting agent it isn't a decalred ingredient of Evvporust.

 

[Sergei Slovenija]

The CAS no of Sulphamic Acid is 5329-14-6

So whilst it can be used as a derusting agent it isn't a decalred ingredient of Evvporust.

I did some digging on Google. He banned me from the patent search, there are too many requests, you see, ahah)))

Sulfamic and methanosulfamic acid are not part of evaporasts, but their derivatives, and salts of these acids, work very interestingly on metals and their oxides and hydroxides.

The ones listed in the German MSDS “Just fertilizer and just surfactants” work a little differently.

I dug up an old secret Soviet textbook on petrochemistry and rolled a couple of high-rolled cigarettes from its pages. We need to think about it in our spare time.

 

[fizzy]

I remember back in the late 70s or early 80s buying a product called Rust X bio. It said it was ph neutral and totally safe to use.
The product was a luminous green jelly. Worked amazingly well. Wash off afterwards.
Tried it on my air rifle barrel and it sadly removed all the bluing. Was amazing on tools though

 

[Sergei Slovenija]

I remember back in the late 70s or early 80s buying a product called Rust X bio. It said it was ph neutral and totally safe to use.
The product was a luminous green jelly. Worked amazingly well. Wash off afterwards.
Tried it on my air rifle barrel and it sadly removed all the bluing. Was amazing on tools though

It was St. Greta's jelly

 

[fizzy]

It was St. Greta's jelly