- What it is. Lab Pro's Hydrogen Peroxide 30% LP Grade is a 30% aqueous hydrogen peroxide solution (H2O2; CAS 7722-84-1), a clear, colorless, odorless liquid packaged in 1-gallon poly bottles. LP stands for low particulate, the grade used in the semiconductor industry. Lab Pro describes it as an etchant, a cleaning agent, and an oxidizing agent for semiconductor processing, and it also serves laboratories that need a concentrated, high-purity oxidizer. The gallon size suits fabs and labs that use peroxide routinely.
- How it is used in wafer cleaning. Hydrogen peroxide is a key ingredient in the RCA cleaning sequence for silicon wafers. In SC-1 solutions, it is combined with ammonium hydroxide to remove particles, and in SC-2 solutions with hydrochloric acid to remove surface metal contamination. Because the peroxide touches the wafer directly, its purity affects surface roughness and residual metal levels, which is why electronic LP grades are specified for this work. Process engineers often specify peroxide grade alongside the other chemicals in the clean.
- Specifications. Lab Pro lists an assay of 30%, a density of 1.11 g/mL at 25 °C, a boiling point of 222.8 °F, a vapor pressure of 17.54 mmHg, and a color limit of 10 APHA. Hydrogen peroxide is fully miscible with water, so you can dilute it to lower working concentrations for cleaning or analytical procedures. Always dilute with high-purity water to avoid adding metal ions that speed decomposition. Clean, dedicated glassware also helps preserve concentration.
- A strong oxidizer. Hydrogen peroxide is noncombustible but a powerful oxidizer. NIOSH warns that contact with combustible materials may cause spontaneous combustion and lists oxidizable materials and metals, including iron, copper, brass, bronze, chromium, zinc, lead, silver, and manganese as incompatible. These metals and their ions catalyze decomposition into oxygen and water with heat, which can build pressure in closed containers. Dilute spills with plenty of water rather than wiping them up with paper or cloth.
- Safety profile buyers should know. Concentrated hydrogen peroxide is corrosive to the skin, eyes, and respiratory tract. OSHA and NIOSH set an exposure limit of 1 ppm as an 8-hour average, and NIOSH lists an IDLH of 75 ppm. Wear chemical splash goggles, a face shield, and compatible gloves, and work in a fume hood or ventilated wet bench. Solutions between 20% and 60% ship under UN2014 as oxidizers. Keep eyewash stations and safety showers close to where it is handled.
- Packaging and handling. Lab Pro ships Hydrogen Peroxide 30% LP in 1-gallon poly bottles, four bottles per case. Keep bottles upright in their original containers, which are designed to manage the slow oxygen release that occurs as peroxide decomposes, and never return unused peroxide to the stock bottle. Lab Pro recommends this product for research, industrial work, cleaning, and semiconductor processing, not for medical use. Rotate stock so older bottles are used first.
Recommended For
- Wafer cleaning (SC-1 and SC-2): particle and metal removal in RCA clean sequences
- Semiconductor etching: an oxidizing component in etch processes
- Surface oxidation and cleaning: oxidizing organic residues on parts and surfaces
- Laboratory oxidations: a concentrated oxidizer for synthesis and sample prep
- Analytical digestion: oxidizing organic matter before trace analysis
Product Details
- Chemical Name: Hydrogen Peroxide, 30% aqueous solution
- Synonyms: H2O2, hydrogen dioxide, hydroperoxide, perhydrol
- CAS Number: 7722-84-1
- Linear Formula: H2O2
- Molecular Weight: 34.01
- PubChem Substance ID: 784
- Grade: LP (low particulate)
- Assay: 30%
- Appearance: Clear, colorless, odorless liquid
- Color (APHA): 10 max
- Density: 1.11 g/mL at 25 °C
- Boiling Point: 222.8 °F
- Vapor Pressure: 17.54 mmHg
- Solubility in Water: Miscible
- Flammability: Noncombustible; powerful oxidizer
- DOT ID: UN2014 (20–60% solution)
- Exposure Limits: OSHA PEL 1 ppm TWA · NIOSH REL 1 ppm TWA · IDLH 75 ppm
- Incompatible With: Combustibles, oxidizable materials, iron, copper, brass, bronze, chromium, zinc, lead, silver, manganese
- Container: 1-gallon poly bottle; 4 per case
FAQs
Is 30% hydrogen peroxide the same as the 3% sold in pharmacies?
No. Pharmacy hydrogen peroxide is about 3%, while this product is 30%, ten times more concentrated. At 30%, it is corrosive to skin and eyes and is a strong oxidizer that requires lab PPE and careful storage. It is not a consumer or medical product.
Why do hydrogen peroxide bottles build pressure?
Hydrogen peroxide slowly decomposes into water and oxygen gas, faster with heat, light, or metal contamination. Containers are designed to manage this, so keep bottles upright, store them cool, and never transfer peroxide into tightly sealed containers not designed for it. Inspect caps for damage before storage.
What is piranha solution and why is it dangerous?
Piranha solution is a mixture of sulfuric acid and hydrogen peroxide used to strip organic residues from substrates. It is extremely reactive, generates heat, and can explode when it contacts organic solvents. Prepare it only under a written procedure with full PPE, and never store it in a closed container.
Where can I buy 30% hydrogen peroxide?
Laboratory and electronic chemical suppliers sell 30% hydrogen peroxide in grades matched to the work. Lab Pro offers this LP grade in 1-gallon poly bottles, four per case, for semiconductor and lab use. It ships as a UN2014 oxidizer, so hazmat charges apply. When diluting, add peroxide to high-purity water in clean, compatible containers.
Does hydrogen peroxide expire?
Yes. Concentration drops slowly over time as it decomposes, faster if stored warm or contaminated. Check the expiration or retest date, keep stock cool and dark, and verify concentration before use in critical processes. Record opening dates on bottles. Concentration checks matter most for critical processes.
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