Recommend 99.6% Oxalic Acid for Industrial Equipment Cleaning

Key attributes

Chemical formula: C₂H₂O₄·2H₂O

CAS: 6153-56-6

Purity: 99.6%

Production standard

COA need meets GB/T1626-2008:

References: Riel Chemical Lab1&2, National public service platform for standards information.

Introduction

Oxalic acid is an organic acid with the systematic name ethanedioic acid and chemical formula

HO−C(=O)−C(=O)−OH, also written as (COOH)2 or (CO2H)2 or H2C2O4.

It is the simplest dicarboxylic acid. It is a white crystalline solid that forms a colorless solution in water.

Its name is derived from early investigators who isolated oxalic acid from flowering plants of the genus Oxalis,

commonly known as wood-sorrels. It occurs naturally in many foods.

Excessive ingestion of oxalic acid or prolonged skin contact can be dangerous.

Physicochemical property

Our manufacturing process

Oxalic acid is produced primarily by oxidizing carbohydrates or glucose with nitric acid or air in the presence of vanadium pentoxide.

Another method is to regenerate nitric acid using oxygen, using a variety of precursors, including glycolic acid and glycol.

 As of 2011, only the Japanese company Mitsubishi has used this process.

A newer method requires oxidative carbonylation of alcohols to obtain dioxalate:

4 ROH + 4 CO + O 2 → 2 (CO 2 R) 2 + 2 H 2 O
These diesters are then hydrolyzed to oxalic acid. About 120,000 tons are produced annually.

Historically, oxalic acid was prepared by applying a caustic base (such as sodium hydroxide or potassium hydroxide)

to sawdust and then acidifying the oxalate with an inorganic acid (such as sulfuric acid).

Oxalic acid can also be formed by heating sodium formate in the presence of an alkaline catalyst.

Application

The main uses of oxalic acid include cleaning or bleaching, especially for rust removal (iron complexing agent).

Its use in rust remover is due to the fact that it forms a stable water-soluble salt with trivalent iron, namely the iron oxalate ion.

Oxalic acid is an ingredient in some teeth whitening products. About 25% of oxalic acid is used as a mordant in the dyeing process.

It is also used in bleach, especially for pulping wood, cork, straw, rattan, feathers, as well as for rust removal

and other cleaning, for baking powder, and as a third reagent in silica analysis instruments.

Is oxalic acid cleaning corrosive

1.The corrosive properties of oxalic acid
For metals:
Oxalic acid can corrode active metals such as iron and aluminum, forming soluble salts (such as iron oxalate), and is often used for rust removal. However, excessive use may damage the metal surface.
Stainless steel and copper products may lose their luster after long-term contact.

For the skin/mucous membranes:
Direct contact can irritate the skin, causing redness, swelling and burns. Inhaling the powder may damage the respiratory tract.

For stone/tiles:
Although it can clean stains, frequent use will corrode marble and granite (containing calcium carbonate), resulting in a rough surface.

2. Safety usage suggestions
Protective measures:
Wear rubber gloves, goggles and masks;
Keep the air circulating and avoid inhaling dust or steam.

Concentration control
For household use, it is recommended to dilute to 3%-10% (e.g., 10g oxalic acid mixed with 100ml water). For industrial use, adjust as needed.

Neutralization treatment
After use, the residue can be rinsed off with baking soda water (alkaline) to reduce the risk of corrosion.

3. Applicable and disabled scenarios
Recommended uses:

Metal rust removal, cleaning of stubborn stains on tiles;

Textile mordant (professional operation required).

Avoid using:

Aluminium products, marble countertops, leather;

Soak the clothes directly (which may cause fiber damage).

4. Emergency response
Skin contact: Rinse immediately with plenty of water for 15 minutes and seek medical attention.

Ingestion by mistake: Do not induce vomiting. Dilute with milk or water and seek medical attention immediately.

FAQ

1.What is your payment term?

We can accept T/T and L/C at sight as payment term.

2.Are you able to deliver on time?

Of course! we specialised in this line for many years,

many customer make a deal with me because we can deliver the goods on time and keep the goods top quality!

3.Do you provide free sample?

Yes, we can provide free sample . You only need to take the express fee.

4.How about the price?Can you make it cheaper?

We always take the customer’s benefit as the top priority.

Price is negotiable under different conditions, we are assuring you to get the most competitive price.

5.Can I visit your company and factory in China?

Sure. You are very welcomed to visit our company in Weifang, China.

(We will have someone responsible for picking up and dropping off at Weifang Airport)

6.What if there is a quality problem?

We have a professional and perfect after-sales service team, timely for you to deal with all problems.