What is Sulfuric Acid For Sale and Why Do We Use Them?

What is Sulfuric Acid?

Sulfuric acid is a mineral liquid that is used to make hundreds of compounds in the chemical industry.

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Sulfuric acid is universally recognized for its diverse range of applications. An important chemical in the industrial field, it is used to create many different products and goods, and is found in several different manufacturing processes. It is a ubiquitous ingredient across many laboratories and industrial facilities.

Sulfuric Acid Chemical Properties: Solubility, Molar Mass and Molecular Density

Sulfuric acid (H₂SO₄) is a colorless, mineral liquid that contains hydrogen, sulfur, and oxygen. 

In its purest form, sulfuric acid is a highly corrosive liquid with a pH of 0.5 and is miscible with water at all concentrations. Sulfuric acid has a molar mass of 98.079 g/mol, a molecular density of 1.84 kg/L (compared to water at 1 kg/L) and a boiling point of 337 degrees Celsius.

Sulfuric acid is also a very dehydrating oxidant. This means that in addition to being highly acidic, it will also strip water away from any substances or surfaces it comes into contact with. Sulfuric acid is also hygroscopic, which means that it will even absorb water from the air.

Caution when using Sulfuric Acid!

Extreme caution should always be exercised when handling sulfuric acid in any concentration. It has much stronger corrosive properties than similar strong acids like nitric and hydrochloric acid. Upon contact with human skin, sulfuric acid in its purest form can cause both chemical and thermal burns. It decomposes lipids and proteins when it touches any living tissue. If it were to come into contact with the eyes, it could cause permanent blindness as it would potentially destroy the corneas. Ingestion into the human body could even yield potentially fatal results. Proper PPE (personal protective equipment) must be worn at all times and all safety precautions must be diligently adhered to when handling sulfuric acid.

Acid must also be stored properly in containers made with nonreactive glass materials. Solutions of sulfuric acid with molarity equal or stronger to 1.5 M should be labeled “Corrosive”. Solutions with molarity less than 1.5 M, but greater than 0.5 M should be labeled “Irritant”. Even when mixed with water, the solution can be dangerous as it produces an exothermic reaction (creates heat) when mixed with water. Proper labeling, storage, and handling of sulfuric acid will ensure a safe working environment for both materials and users.

What is Sulfuric Acid Used For?

Sulfuric acid has many uses among a broad expanse of industries and is one of the most important industrial chemicals. In almost any manufactured good, the use of sulfuric acid could be traced back to some step of the manufacturing process.

Top 5 uses of Sulfuric Acid:

1. Chemical manufacturing

Sulfuric acid can be used as a component when creating other useful acids such as hydrochloric acid and nitric acid. It can also be used to create synthetic detergents, pigments and dyes, and sulfate salts.

2. Metal processing

It is also widely used in processing metals. Metal processing is where metal is heated, cooled, and shaped to form any particular product made out of steel, iron, or copper (i.e. transportation, computer parts, construction, piping, housing materials, etc.). Sulfuric acid is used in a mixture for what is known as “steel pickling”, which is a surface treatment process that is used to remove any rust or carbon impurities to finish the metal and is one of the final and most important stages of metal processing.

3. Batteries

Sulfuric acid is used in combination with lead to produce a reaction that generates enough electrons for large batteries (like the ones used in automobiles and tractors) to produce the necessary voltage. This is sometimes commonly referred to as “battery acid”, and sulfuric acid is an essential component of the solution that produces the battery energy.

4. Domestic and industrial cleaning products

It is also a commonly found ingredient in many cleaning products due to its corrosive nature. Its strength and acidity make it a powerful cleaning agent, and it is often found in domestic and industrial versions of products like drain unblockers, cleaners, detergents, and chemical sprays.

5. Agriculture and fertilizer

Sulfuric acid’s largest use is in the majority of the world's agriculture. In the fertilizer industry, sulfuric acid is used to create inorganic phosphate fertilizers such as ammonium sulfate and superphosphate of lime. These are both widely used fertilizers in the majority of commercial agriculture.

Sulfuric acid can be used in several applications across many different industries. In addition to its more commercial uses, it is also found as a part of many different laboratory and pharmaceutical processes. Sulfuric acid can be used in the manufacturing process of certain medicinal drugs that aid in the alkylation process of DNA. MB grade sulfuric acid is a common component in laboratory work and analysis, and even in lab classrooms for educational experiments and titrations.

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For over 40 years, Lab Pro Inc. has been committed to delivering the highest quality chemicals such as Sulfuric acid, lab equipment, chemicals, lab supplies, and cleanroom PPE apparel to medical device and electronic manufacturing laboratories worldwide. To learn more, visit the biggest Lab Supply showroom in California, or contact us online or at 888-452-.

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Sulphuric acid is the most widely produced chemical in the world, simply because it has so many uses. We’ll look at a few key uses of sulphuric acid, including its use as a fertiliser, cleaning product, and in batteries.

What Is Sulphuric Acid?

Sulphuric acid (H2SO4) is a strong mineral acid made up of sulphur, hydrogen, and oxygen. It has a strong smell and is an extremely corrosive, oily, clear liquid. It should always be handled with caution, even in diluted form. When diluted with water it releases heat in an exothermic reaction.

Uses of Sulphuric Acid

Sulphuric acid is used in some way during the production of almost all manufactured goods. It has a wide range of uses in the agriculture, chemical, automotive, and steel industries, and we’ll explore a few of these in a little more detail.

The Importance of Sulphuric Acid in Agriculture

Around half of the world’s sulphuric acid is used in agriculture, specifically in the fertiliser industry. Sulphuric acid is specifically used to manufacture phosphate fertilisers such as superphosphate of lime and ammonium sulphate.

All industrialised countries use sulphuric acid in this way. It is intrinsic to modern farming methods because when it is used to produce nitrogen fertilisers it increases the crop yield, essentially meaning that farmers can generate more revenue through producing more crops. It also produces highly nutritional crops. As developing countries become more industrialised, they in turn will have a greater need for sulphuric acid.

Sulphuric Acid Use in Batteries

Large-power batteries work on the basis of the chemical reaction between sulphuric acid and lead. When these two materials interact the sulphuric acid serves as the electrolyte, and together they generate the required electrons for a battery to be able to produce voltage.

Batteries made in this way are typically found in motor vehicle engines, hospital imaging equipment, and farming equipment. Because of the nature of the chemical reaction, an inert compound is created. This means that a battery has a finite use and will eventually die.

Sulphuric Acid in Domestic Products

Sulphuric acid is often found in domestic cleaning products due to its corrosive nature. Being highly corrosive makes sulphuric acid ideal for cleaning surfaces which can get particularly dirty, such as toilets.

It’s also an ideal drain unblocker because it can break down organic material such as hair and grease. As we’ve already seen, sulphuric acid produces heat when it comes into contact with water and this helps to cut through blocked drains. Just be careful not to let it come into contact with your skin – sulphuric acid should always be handled with care.

Sulphuric acid is also found in other household products such as laundry detergent, soap, dishwasher liquid, and even some cosmetics.

Iron and Steel Making

Sulphuric acid is used in the processing of iron, copper and steel to clean the metal and prevent oxidation before it is plated with tin or zinc. This is known as ‘pickling’. Two examples of using sulphuric acid in this way are to make cans for food and to supply the correct metal for sale to the automotive industry.

Used sulphuric acid can be recycled in a Spent Acid Regeneration (SAR) facility. Large-scale metal manufacturers often have their own SARs to save on the cost of buying new sulphuric acid and disposing of the old acid.

Other Uses of Sulphuric Acid

We have only scratched the surface of the uses of sulphuric acid – one article is not long enough to cover them all! These are just some of its other uses:

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• Chemical manufacturing – sulphuric acid is often used as a raw material in the production of other chemical solutions such as hydrochloric acid, phosphoric acid, nitric acid, and sulphate salts
• Lab testing and analysis
• Petrochemical refining – sulphuric acid is used as a catalyst to ‘clean’ impurities out of gasoline and other refinery products
• Paper production
• Textile manufacturing: sulphuric acid is used in the production of rayon, a semi-synthetic, breathable material ideal for use in hot and humid countries