Is this SDS the latest revision?

This Safety Data Sheet was issued by American Elements on 15 January 2022 under OSHA. ISDSS syncs its database regularly to keep documents current.

Do I need to register to download this SDS?

Yes, a free ISDSS account is required to download the PDF. Registration takes under two minutes and gives you access to over 1.5 million Safety Data Sheets. Once registered, you can also save documents to your personal library for quick access.

Who is responsible for providing an SDS?

The manufacturer, importer or supplier that places the substance on the market is responsible for providing a current Safety Data Sheet to downstream users, free of charge.

Can I use this SDS as my COSHH risk assessment?

No. An SDS provides the hazard information you need, but a COSHH assessment must consider how the substance is actually used in your workplace. The matching Chemical Risk Assessment (CRA) on this page is a starting point you should adapt to your own tasks and controls.

Safety Data SheetChemical Risk Assessment

Osmium Tetroxide Solution

by American Elements

SDS · PDF, approx. 220 KB CRA · PDF, approx. 180 KB

Osmium Tetroxide Solution is supplied by American Elements under product code OS-OX4-02-SOL, OS-OX4-03-SOL, OS-OX4-04-SOL, OS-OX4-05-SOL. This page provides both the Safety Data Sheet (SDS) and the Chemical Risk Assessment (CRA) for this substance, under OSHA regulations for UK workplace use under COSHH. The full SDS and CRA documents are available to download above.

This SDS was last revised on 15 January 2022. The matching CRA is updated in line with SDS revisions. Workplaces handling this substance should retain a current SDS and risk assessment for the duration of use.

Language: English
Regulation: OSHA
Revision Date: 15 Jan 2022
Signal Word: DANGER
Product Code: OS-OX4-02-SOL, OS-OX4-03-SOL, OS-OX4-04-SOL, OS-OX4-05-SOL
CAS Number: 20816-12-0,7732-18-5

Switch between the Safety Data Sheet and the Chemical Risk Assessment for this substance.

Hazards at a GlanceFrom the Safety Data Sheet

Signal Word: DANGER

GHS05Corrosive

GHS07Harmful / irritant

GHS06Acute toxicity

GHS08Health hazard

Hazard Statements (H-phrases)

H318: Causes serious eye damage.
H315: Causes skin irritation.
H330: Fatal if inhaled.
H302: Harmful if swallowed.
H312: Harmful in contact with skin.
H373: May cause damage to organs through prolonged or repeated exposure.
H370: Causes damage to organs.
H371: May cause damage to organs.

Need the full hazard breakdown? Precautionary statements, first aid, physical properties and exposure controls are in the full SDS PDF.

Common QuestionsAbout this Safety Data Sheet

Chemical Risk Assessment SummaryFrom the Chemical Risk Assessment

Assessment Summary

This Chemical Risk Assessment is derived from the Safety Data Sheet for Osmium Tetroxide Solution issued by American Elements on 15 January 2022 It presents the substance's hazards organised by risk level, with the relevant regulatory statements and recommended controls for each. These hazards are rated across three levels: High, Medium and Low Risk, based on the hazard classifications in the SDS.

Hazard PreviewA snapshot of substance hazards and controls

Rating Before Controls

HIGH RISK

H330: Fatal if inhaled

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

P271 Use only outdoors or in a well-ventilated area.

P284 Wear respiratory protection.

P233 Keep container tightly closed.

P403 + P233 Store in a well-ventilated place. Keep container tightly closed.

P501 Dispose of contents/container to correct disposal area.

4 other controls in place

Rating Before Controls

HIGH RISK

H370: Causes damage to organs

P260 Do not breathe dust/fume/gas/mist/vapours/spray

P264 Wash hands thoroughly after handling.

P270 Do not eat, drink or smoke when using this product

P405 Store locked up.

P501 Dispose of contents/container to correct disposal area.

P307 + P311 IF exposed: call a POISON CENTER or doctor/physician.

1 other control in place

Rating Before Controls

HIGH RISK

H318: Causes serious eye damage

P280: Wear protective gloves/protective clothing/eye protection/face protection.

P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P310 Immediately call a POISON CENTER or doctor/physician

Note: This is a preview of the substance's hazards. A substance commonly carries more hazards. Download the full Chemical Risk Assessment for more information.

Recommended Control MeasuresKey PPE and handling controls

Need to download the Chemical Risk Assessment? The full CRA PDF includes all hazard classifications, regulatory statements and recommended controls.

Common QuestionsAbout this Risk Assessment

Free with ISDSS

Manage Your SDS Library

Build a personal library of every SDS your workplace uses. Search, download and access documents any time you need them.

Osmium Tetroxide Solution

Need help with Safety Data Sheets? You've come to the right place!

Follow Us