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nitric oxide

Also known as: nitric oxide · nitrogen monoxide · Mononitrogen monoxide · INOmax

CAS No.: 10102-43-9
Formula: NO
Molar mass: 30.006 g/mol
PubChem CID: 145068

GHS pictograms

Oxidizing

Compressed gas

Corrosive

Toxic

Health hazard

2D structure of nitric oxide — 2D structure · PubChem CID 145068

Summary

nitric oxide (NO), CAS 10102-43-9. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.

Background

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Physical properties

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Hazards

Oxidizing (GHS03)

May cause or intensify fire.

Compressed gas (GHS04)

Contents under pressure, may explode if heated.

Corrosive (GHS05)

Attacks skin, eyes and materials.

Toxic (GHS06)

May be fatal even in small doses.

Health hazard (GHS08)

Serious long-term health effects (CMR, respiratory sensitizer).

Hazard statements

Storage

Temperature

Keep at room temperature, below 30 °C, out of direct heat.

Ventilation

Store somewhere well-ventilated and away from any ignition source.

Containers

Metal drums or tinted glass, tightly sealed.

Keep away from

Strong acids, strong bases and powerful oxidizers.

Personal protective equipment

Gloves

Nitrile or butyl, at least 0.4 mm thick.

Eye protection

Safety goggles with side shields.

Respirator

A2 organic-vapor cartridge if the room isn't well ventilated.

Occupational exposure limits (HSE)

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EU harmonised classification (ECHA C&L)

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Transport

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FDA recalls & enforcement

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Compatibilities

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Practical safety notes

Oxidizing. Keep away from combustibles, organics, reducers and fuels.
Compressed gas. Secure cylinders upright, protect valves, store in ventilated areas.
Corrosive. Wear chemical goggles, faceshield and chemical-resistant gloves. Have an eyewash within reach.
Acute toxicity. Work under a fume hood, restrict access, keep a specific antidote plan available.
Serious health hazard (carcinogen, mutagen, reprotoxic, respiratory sensitizer). Substitute if possible; otherwise closed systems and medical surveillance.

Derived from the GHS classification shown above. These notes are generic guidance and do not replace the manufacturer's SDS or your local risk assessment.

FAQ

Is nitric oxide flammable?+

nitric oxide (CAS 10102-43-9) does not carry the GHS02 flame pictogram in our records. Always confirm with the manufacturer's SDS section 9 (flash point) before assuming a product is non-flammable.

What PPE should I wear when handling nitric oxide?+

Chemical-splash goggles and a faceshield, chemical-resistant gloves (nitrile or butyl) and an apron are the minimum. Work inside a fume hood or use a suitable respirator. Check SDS section 8 for material-specific breakthrough times.

How should nitric oxide be stored?+

Store nitric oxide (CAS 10102-43-9) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials. Segregate acids from bases and keep away from metals that can be attacked.

Is nitric oxide dangerous for the environment?+

No specific environmental pictogram (GHS09) is listed in our records for nitric oxide, but any chemical waste should be handled through your site's hazardous-waste procedure, not poured down the drain.

Where can I find the official Safety Data Sheet for nitric oxide?+

Official, up-to-date SDS documents are published by each manufacturer (Sigma-Aldrich, Merck, Thermo Fisher, VWR, Carl Roth, etc.) and by regulators such as ECHA and NIOSH. This page is an educational summary and does not replace the manufacturer's SDS.

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