Zhejiang Realsun Chemical Co., Ltd.

High-Purity Chemicals & Specialty Solvents for Semiconductor Processing

In electronic manufacturing, chemical purity cannot be judged by assay alone. Our application approach connects precise chemical specifications with the actual contamination and performance needs of your process.

Application Scope

Where Electronic Chemicals Are Used

Supporting critical electronic manufacturing processes where contamination control directly influences output quality.

Photoresist Processing Semiconductor Process Cleaning Precision Electronic Cleaning PCB Processing & Etching Component Manufacturing High-Purity Formulations
Quality Parameters

Quality Is More Than a Purity Percentage

Beyond headline assay, sensitive electronic manufacturing demands controlled impurity profiles.

Trace Metals

Specific metal ions can compromise semiconductor devices even in minute quantities. Limits are defined for individual elements.

Moisture Control

Uncontrolled water impacts sensitive formulations and process stability. Control extends from purification through packaging.

Non-Volatile Residue

Prevents unwanted film or residue from remaining after solvent evaporation in precision cleaning and coating applications.

Organic Impurities

Individual organic limits ensure formulation stability, predictable volatility, color control, and batch reproducibility.

Core Portfolio

Realsun Chemicals for Electronic Applications

Specialty solvents backed by ultra-clean preparation capabilities.

Polar Specialty Solvent

N,N-Dimethylpropionamide (DMPA)

Polar solvent used in electronic, polymer, and specialty applications. Evaluated for strong solvency alongside controlled moisture and trace impurities.

View N,N-Dimethylpropionamide →
Resin & Photoresist Solvent

Ethyl 3-Ethoxypropionate (EEP)

Specialty solvent with excellent resin compatibility and controlled evaporation characteristics for electronic-related processes.

View Ethyl 3-Ethoxypropionate →
High-Polarity Solvent

N-Methyl-2-Pyrrolidone (NMP)

High-polarity solvent for demanding processing. Evaluated against specific moisture, trace metal, and organic impurity requirements.

View N-Methyl-2-Pyrrolidone →
End-to-End Control

High-Purity Chemical Preparation & Packaging Protection

Purification is only one part of high-purity manufacturing. Realsun prevents recontamination across every contact point-from transfer line to packaging.

01
 Raw Material Selection: Qualified precursors prevent trace metals.
02
 Multi-Stage Purification: Distillation & specialized trace separation.
03
 Contamination Control: Ultra-clean transfer lines & contact materials.
04
 Analytical Verification: Ultra-trace detection methods.
05
 Controlled Packaging: Compatible containers prevent extractables.
Commercial SOP

From Sample Evaluation to Lot Qualification

Ensuring long-term lot-to-lot consistency across commercial electronic manufacturing.

STEP 1
Spec Review
Align critical limits.
STEP 2
Sample Analysis
Trace testing in lab.
STEP 3
Application Test
Process trial evaluation.
STEP 4
Packaging Check
Verify extractable limits.
STEP 5
Multi-Lot Check
Confirm batch consistency.
STEP 6
Routine Supply
Commercial lot release.
Technical FAQ

Frequently Asked Questions

Is 99.99% purity enough for semiconductor processing?

Not necessarily. A 99.99% assay does not specify the remaining 0.01%. Specific trace metals, moisture, or non-volatile residue can be critical.

Why does packaging matter so much for high-purity chemicals?

A chemical can meet specification right after purification but become recontaminated during filling, transport, or storage if containers leach impurities.

What is the difference between industrial grade and electronic grade?

While the base molecule is identical, electronic grades require tight limits on water, individual organic impurities, metal ions, residue, and container cleanliness.

Discuss Your Electronic Chemical Requirements

Provide your chemical name, CAS No., required assay, water limit, critical metal ion limits, and packaging requirements. Our technical team will review your specification.

Request Technical Evaluation & Samples →