Why is barium petroleum sulfonate still a core anti-rust additive in industrial oil products?

In the formulation system of industrial lubricant and antirust oil, barium petroleum sulfonate is the most commonly used and stable antirust additive.

Even though a large amount of environmental protection and synthetic anti-rust additives have appeared, it's still very important in metal processing, mechanism producing, device storing, and packaging.

 

Why does barium petroleum sulfonate have a reliable anti-rust effect?

Barium petroleum sulfonate itself is a kind of compound with strong polarity. Adding barium petroleum sulfonate to oil can form a tense protective film on metal, which has 2 important functions:

1. Separate moist content and air:

It can prevent metal from contacting oxygen and water to avoid rust due to oxidation.

2. Dispersed corrosive substance:

Barium sulfonate can encapsulate trace amounts of water, salt, or acidic substances within the micellar structure, reducing their corrosion to metals.

These 2 characteristics can keep barium sulfonate a stable performance under a humid environment, salt spray environment, and long-term storage, which is also a main reason that barium sulfonate can be used for a long.

 

Antirust additive Chorus 404 is a high-end anti-corrosion additive, consisting of a high molecular weight, oil-soluble neutral barium sulfonate. It's suitable for industrial lubricant oil, anti-rust oil, lubricant grease, and metalworking fluid, and can provide reliable antirust protection for metals. It also has excellent water repellency and water and salt spray resistance capabilities.

 

It's suitable for multiple metals and satisfies more industrial applications.

Barium sulfonate has a strong adaptability to ferrous metals and can form a stable protective film on steel, synthetic steel, and cast iron. It's especially suitable for components storage, export transportation, and a hot and humid environment, with short or long-term anti-rust.

Compared to the anti-rust systems that are sensitive to the types of metals, the barium petroleum sulfonate can maintain stability in the environment of salt spray, humidity, and large temperature changes. It's less likely to have "local failure" or "flake rust".

 

Good base compatibility and more convenient for formulating.

Barium petroleum sulfonate has good oil compatibility with common base oil, including mineral oil, some synthetic and commonly used wax and liquid components in anti-rust oil.

It's less likely to have stratification or precipitation during blending, making the production process more stable.

Strong water displacement capacity and suitable for metal working protection.

Barium petroleum sulfonate has a strong hydrophilicity and hydrophobicity; it can effectively condense water, cutting fluid residue, and hand swearer, and immediately form a uniform protective film. It's suitable for the metal working anti-rust, short-term storing, and quick packing.

Barium petroleum sulfonate can cover the metal surface effectively when the metal surface has little hand sweater, which is useful to reduce hand sweater. This is very important for precision parts and export parts.

 

The formulation of water displacement.

Long-term stability and cost advantages coexist

The barium petroleum sulfonate is dense and uniform, compared with wax and ester, it can keep a strong hot and humidity resistance capacity for a long time, standing still.

1. The influence of environmental protection regulation

Although bariun-based products have caught attention from some regions' regulations, the limit requirements for anti-rust oil are not as strict as those for fuel oil and grease.

Many export enterprises still adopt the "low barium formula", which strikes a balance between performance and regulations.

2. Why can calcium-based synthetic sulfonate not replace barium petroleum sulfonate completely?

The market has many calcium-based "no barium alternative" products, but they usually have the following shortcomings:

• The water displacement is insufficient.
• The protection against a high-humidity environment is insufficient.
• It's more sensitive to a salt spray environment.

Therefore, heavy loading storage and maritime shipping environments still use barium-based sulfonate.

3. The advantage of stable film for long-term storage.

Barium-based sulfonate forms a film with structure of hard film with strong adsorption, so the film layer will not break after storing for a long time, which is more reliable for some fatty acids.

 

We can provide dinonylnaphthalene sulfonate antirust additives.

Basic barium dinonylnaphthalene sulfonate-Chorus Ba-29B

Chorus Ba-29B is a wide application oil anti-rust additive, which can provide an excellent anti-rust and anti-corrosion protection to ferrous metals. The good base oil and formula compatibility and stability make it suitable for multi-lubricant oil systems, including hydraulic oil, anti-rust oil, circulating oil, gear oil, and gasoline engine oil.

 

• Excellent anti-rust &corrosion performance.

Chorus Ba-29B can form a tense protective film on a ferrous surface to inhibit the corrosion caused by humidity, acidic substances, and corrosion media.

• Excellent oil-soluble stability and demulsification capacity.

Chorus Ba-29B has a good oil solubility in mineral and synthetic base oils.

The excellent demulsification capacity can help oil keep clean in the water content working condition.

• Alkaline reserve (TBN≈ 35-55 mgKOH/g)

With the alkaline reserve of Ba(OH)2, it can neutralize the acid oxidation substance efficiently in the lubricant system, to improve oil's anti-oxidation and anti-corrosion ability.

 

Neutral barium dinonylnaphthalene sulfonate-Chorus Ba-29N

Chorus Ba-29N is a good neutral antirust additive and anti-emulsifier. It has a small influence on some acid additives and can not produce sedimentation in some lubricant formulations.

 

Good oil-soluble and high anti-emulsification ability can prevent water from emulsifying and keep the oil clean and stable.

Low TBN (≤1mgKOH/g), it doesn't influence other additives, has better compatibility, and the formulation is safer.

Wide application: it's suitable for anti-rust oil, hydraulic oil, gear oil, metal working oil, and other lubricant oil systems.

 

Basic Barium Dinonylnaphthalene Sulfonate (Carbonated) - Chorus Ba-29C

Chorus Ba-29C is an oil-soluble antirust; it has a similar antirust performance to Chorus Ba-29B and Chorus Ba-29N.

 

 

The double performance of anti-rust and neutralize acid substance, and high TBN 35–55 1mgKOH/g helps it neutralize the acid substance from oil.

Attention:

Chorus Ba-29C may have little influence on some non-ferrous metals; the formulation compatibility with the EP additive should be evaluated.

 

We are professionals in lubricant additives. Contact us to know more about the anti-rust additive. We can provide you with perfect solutions.