Description

What is oxalic acid?

Oxalic acid is an organic compound, chemically known as a dicarboxylic acid with the formula C₂H₂O₄. In its pure form it is a white crystalline powder and has many different applications. In the textile and leather industries it is used for bleaching and cleaning processes. It is also an important ingredient in certain household cleaning products, for example for treating deposits such as rust or lime stains on surfaces. In the metalworking industry it is used to prepare metal surfaces. It is also used in laboratory environments as a reagent.

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Uses of oxalic acid

• Rust removal: Oxalic acid can be used to remove rust from various surfaces.
• Wood bleach: It helps in lightening stains of wood.
• Cleaning: It removes limescale and other stubborn stains from textiles and other surfaces.
• Metalwork: Used in aluminum production and for etching iron.

Instructions for making dewatering water

1. Solution Preparation : Dissolve 100 grams in 1 liter of warm water. This provides a suitable concentration for treating discolorations.
2. Application : Apply the oxalic acid solution to the discolored area and allow it to absorb. This can be repeated until the discoloration disappears.
3. Treatment of the Entire Surface : After removing the discoloration, treat the entire surface with the solution, not just the previously treated area. This helps in evenly restoring the appearance of the surface.
4. Rinsing : Rinse the treated surface thoroughly with clean water. This is essential to remove residues of oxalic acid and to neutralize the acid.
5. Safety measures : The use of personal protective equipment, such as gloves and goggles, is strongly recommended to prevent skin and eye irritation.
6. Other Considerations : Inform users that it is important to work in a well-ventilated area and to avoid direct contact with the skin and eyes.

Health and Safety

Oxalic acid, while useful in many applications, carries significant risks when used incorrectly. It is poisonous if ingested and causes irritation on contact with skin and eyes. This emphasizes the importance of wearing protective clothing, such as gloves and goggles, while handling oxalic acid.

Inhalation of fumes can also cause breathing problems. In case of direct exposure or accidents, seek immediate medical attention.

In industrial settings, it is essential to strictly follow safety protocols, including adequate ventilation and emergency procedures.

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When working with oxalic acid, it is important to observe both industrial and personal safety.

Danger

Hazard statements (H phrases)

• H302: Harmful if swallowed
• H312: Harmful in contact with skin.
• H318: Causes serious eye damage

Precautionary measures (P-phrases)

• P264: Wash hands thoroughly after use.
• P280: Wear protective gloves, protective clothing, eye protection, face protection.
• First-aid measures after ingestion (P301+P312): If you feel unwell after swallowing: Call a POISON CENTER or doctor/physician.
• First aid after skin contact (P302+P352): In case of contact with skin: wash immediately with plenty of soap and water.
• First aid after eye contact (P305+P351+P338): In case of contact with eyes: rinse carefully with water for several minutes; remove contact lenses, if possible; keep rinsing.
• P362+P364: Remove contaminated clothing and wash before reuse.

Frequently Asked Questions

• Is oxalic acid dangerous?
  • Yes, it is toxic if ingested and can cause irritation on contact.
• How do I store oxalic acid?
  • Store in a cool, dry place out of the reach of children.
• Can I use oxalic acid for all cleaning tasks?
  • While it is suitable for many tasks, it is essential to follow the instructions on the label.
• Can oxalic acid be used to remove rust?
  • Yes, oxalic acid is very effective at removing rust. It is often used to remove rust stains from metals and other surfaces. Be sure to use proper dilution and safety precautions.
• What should I do in case of accidental exposure to oxalic acid
  • In case of skin contact, rinse immediately with plenty of water. In case of eye contact, rinse the eye and seek medical attention. If inhaled, move to a place with fresh air and consult a doctor if necessary.

Where can I buy oxalic acid?

Order top quality oxalic acid from DutchChems, your trusted expert in chemical products. Why make it difficult when it can be easy? Place your order in just a few clicks and experience the convenience and efficiency of online shopping. Quality and safety come first, which is why we guarantee a high-quality product that is carefully and safely packaged and delivered very quickly. Your satisfaction is our priority!

For more information, please visit Potassium Hydroxide Solution.

For cleaning you can make it saturated and thicken it with wallpaper paste but it depends how mucky the topsides are.

Cillit Bang Lime and Grime is also effective and not so toxic.

Wiki gives the solubility as 14.3 g per 100cm³ at 25C but if you are buying it as the dihydrate 14.3 g of the anhydrous material becomes 20g as the dihydrate. 20g per 100cm³ is the same as your 4 ozs per pint.

Conclusion 4 ozs per pint is saturated at 25C.

says 4oz per 1 pint of water - is this the right concentration for topsides cleaning please?!

Peeps on here usually say to dissolve as much as you can in the water, ie it wont dissolve any more in the given amount, which means it is "saturated"
Vics chemistry lesson supports that theory!
Stu Oxalic acid and wallpaper paste is the DIY version of Y10.

Sugar soap is fairly strongly alkaline (exact composition varies) so will be better than oxalic for oily deposits.

Completely mystified as to why oxalic acid has emerged as the wonder cleaning chemical of the age. Very good for brown stains that are caused by rust and other iron compounds. I guess many other "stains " are bound by limescale deposits so any acid cleaner (eg Cillit Bang Lime and Grime) will be effective.

Buςςer, that Talisker ad has opened itself over what i am trying to do!

Wouldn't buy it after this advertising campaign even if it were the only Scotch on the planet.

Oxalic acid and wallpaper paste is the DIY version of Y10.

Sugar soap is fairly strongly alkaline (exact composition varies) so will be better than oxalic for oily deposits.

Completely mystified as to why oxalic acid has emerged as the wonder cleaning chemical of the age. Very good for brown stains that are caused by rust and other iron compounds. I guess many other "stains " are bound by limescale deposits so any acid cleaner (eg Cillit Bang Lime and Grime) will be effective.

Buςςer, that Talisker ad has opened itself over what i am trying to do!

Wouldn't buy it after this advertising campaign even if it were the only Scotch on the planet.

Vic
First used it last year, it demolished the brown scottish water stains on the bow (peat stains?) It certainly cleaned the top sides to a startling white ready for waxing, it cleans the teak wonderfully, and considering that my defintive cleaner was the american one at £14 a bottle a lot cheaper!
By the way Merry Christmas.
Daughter is coming to the end of her 4 years in Uni, Masters in Drug discovery Chemistry, v proud
Stu Hull and topside cleaning

I dont know if you saw my post recently. My club collegue was showing off his Y10 cleaner and did a circle 12"dia on my white boat. Now you will have to get the rest the same he said with a laugh. I called him 10mins later to show him another circle the same size just as clean , but I had done mine with Harpic toilet cleaner. Just as good but my! what a differance in price, all our members with white GRP now use it.
Abdiel

Oxalic acid and wallpaper paste is the DIY version of Y10.

VicS

The only problem I find with wallpaper paste is if it's left to dry (eg overnight). It's then a real pain in the a*** to get it off. As a chemist, what is it that the Y10 people use and is it available to the consumer? Some years ago I called into Car Dealers Mercs?BMW's and other expensive cars. Where is all this leading to? Well they cleaned every car with BRASSO. So I have tried it on the gelcoat and it comes up sparkling clean and bright white. Now a question for Vics will I be OK to continue to use this or am I causing any permanant damage to my gelcoat????????

Peter

VicS

The only problem I find with wallpaper paste is if it's left to dry (eg overnight). It's then a real pain in the a*** to get it off. As a chemist, what is it that the Y10 people use and is it available to the consumer?

On a Dutch site I found a Y10 data sheet which showed it to be 18% w/v Oxalic acid, plus assorted surfactants.

So you could probably fake up a substitute with washing up liquid and Oxalic acid. Salt (NaCl) acts as a thickening agent on most surfactants (up to a certain concentration when it starts to thin, empirical experiment will determine amount), or you could use wall paper paste.

Will try the Harpic method when I come out for the hull spring clean. Got to be easier than making a home-brew, and save my oxalic for the teak.

Some years ago I called into Car Dealers Mercs?BMW's and other expensive cars. Where is all this leading to? Well they cleaned every car with BRASSO. So I have tried it on the gelcoat and it comes up sparkling clean and bright white. Now a question for Vics will I be OK to continue to use this or am I causing any permanant damage to my gelcoat????????

Peter

If you are a product sniffer you might have noticed that "Tcut" and brasso have a very similar smell. AFAIK Brasso is just a runny fine cutting compound.

Tcut will be cheaper.

Some years ago I called into Car Dealers Mercs?BMW's and other expensive cars. Where is all this leading to? Well they cleaned every car with BRASSO. So I have tried it on the gelcoat and it comes up sparkling clean and bright white. Now a question for Vics will I be OK to continue to use this or am I causing any permanant damage to my gelcoat????????

Peter

I wouldn't use any abbraisive on my gelcoat. It is a last resort once the surface is very bad. Continued use of it will mean the surface will absorb any dirt going. I know, the stern of my boat was cleaned regularly by the last owner with CIFF which is an abrasive, and now catches any dirt going.... I was told many many years ago after i used Farecla for cars to clean my faded gell coat that you should not as it and T-Cut has amonia in it which is bad for Gelcoat which is why Farecla bought out a marine cutting compound for boats.

Y 10 works well on stainless though especially satin finish when it starts to rust. Wall paper paste ! I have the same problem with it going off and being a complete B****r to get off. My next door neighbour being a chemical supplier mixed up an inert thickener for me to which I add the oxalic acid and it stays jelly like the same way as y10

If enough are formites are interested I will ask him if he is interested in supplying it to fellow members - I think he can supply it as a powder for you to mix up ( he did mine with water and washing up liquid to act as a cleaner).

PM me if you are interested and I will let you know.