1. Introduction: A Solvent with Expanding Potential

Dimethyl sulfoxide (DMSO) has long been recognized as a powerful polar aprotic solvent, widely used in pharmaceuticals, agrochemicals, and specialty chemical synthesis. However, as industries shift toward higher precision manufacturing and sustainability-driven processes, DMSO is beginning to find new relevance beyond its traditional roles.

 In particular, two high-value sectors are quietly exploring its potential:

· Semiconductor cleaning

· Electrolyte recovery in energy systems

These applications are not yet mainstream, but they represent a meaningful shift in how DMSO is perceived and utilized.

2. Key Properties That Enable New Applications

Before diving into applications, it is worth revisiting what makes DMSO technically interesting.

These properties position DMSO as a candidate for precision cleaning and chemical recovery systems, where both solvency and stability are critical.

3. DMSO in Semiconductor Cleaning

3.1 The Challenge of Modern Semiconductor Cleaning

Semiconductor fabrication increasingly involves:

· Advanced photoresists

· Complex multilayer structures

· Nanoscale contamination control

Traditional solvents such as NMP (N-Methyl-2-pyrrolidone) have been widely used but face regulatory pressure and health concerns.

3.2 Why DMSO is Being Considered

DMSO offers several advantages in this context:

· Strong solvency for photoresist residues 

· Lower volatility compared to conventional solvents

· Potential compatibility with delicate substrates 

It can be used in:

· Photoresist stripping

· Post-etch cleaning

· Residue removal in advanced nodes

3.3 Comparison with Traditional Solvents

DMSO is not a direct replacement in all cases, but it is increasingly evaluated as a safer and more sustainable alternative.

4. DMSO in Electrolyte Recovery

4.1 The Growing Need for Recovery Solutions

With the expansion of:

· Lithium-ion battery production

· Electrochemical processes

· Industrial electrolyte systems

 there is rising demand for efficient recovery and recycling of electrolytes.

4.2 Role of DMSO in Recovery Processes

DMSO can contribute in several ways:

· Selective dissolution of target components

· Acting as a separation medium 

· Improving recovery efficiency in mixed solvent systems

Typical use scenarios include:

· Recovery of lithium salts

· Separation of organic electrolyte components

· Cleaning and regeneration of electrolyte systems

4.3 Advantages in Circular Economy Context

· Reduces waste generation

· Enables higher recovery yields

· Compatible with multi-step purification processes

In a world obsessed with “green chemistry” buzzwords, this is one of the few cases where the claim actually has some technical grounding.

5. Limitations and Considerations

It is important to acknowledge real technical challenges.

· High boiling point → energy-intensive removal

· Strong solvency → potential material compatibility issues

· Odor and handling concerns in large-scale operations

Process design must account for:

· Efficient recovery systems

· Material compatibility testing

· Cost-performance balance

6. Future Outlook

DMSO is unlikely to replace established solvents overnight, especially in highly optimized industries like semiconductor manufacturing. However, its role is evolving from:

“just another solvent”
to
“a functional tool in advanced and sustainable processes”

As regulatory pressure increases and industries seek safer alternatives, DMSO may gradually move into:

· Niche semiconductor applications

· Hybrid cleaning systems

· Closed-loop recovery processes

7. Conclusion

DMSO’s emerging applications in semiconductor cleaning and electrolyte recovery highlight a broader trend: traditional chemicals are being re-evaluated under new technological and environmental demands.

For companies willing to explore beyond conventional uses, DMSO offers:

· Technical versatility

· Regulatory advantages

· Alignment with sustainability goals

The question is no longer whether DMSO can be used in these fields, but how far its role can expand.