Thallium

Sigma-Aldrich Inc

Revision date : 2026-08-12

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GHS06 GHS08
Health risk rating 4
Safety risk rating 1
Environmental risk rating 3

Note: Ingredients listed on restricted chemical lists

EC/CAS

7440-28-0

Name of the chemical

Thallium

Concentration

>= 80 - <= 100

General Information

Version

6.12

Revision date

2026-08-12

Product name

Thallium

CAS No.

7440-28-0

1.2.1 Relevant identified uses

Laboratory chemicals, Synthesis of substances

1.2.2. Uses advised against

The product is being supplied under the TSCA R&D Exemption

Emergency telephone

800 424 9300, +1 703 527 3887

Icons in SDS

GHS06 GHS08 M004 M010 M011 M017

Company Information

company name

Sigma-Aldrich Inc

GHS Information

Signal word

Danger

Hazard Codes

Hazard statements (CLP)

H300+H330, H373, H402, H413

Hazard statements

Code

Statements

H300+H330

Fatal if swallowed or if inhaled

Section 2

SECTION 2: Hazards identification

Long term hazards

Category 4 aquatic hazard

Other hazards

None known

Signal word

Danger

Hazard statements

H300 + H330 Fatal if swallowed or if inhaled. H373 May cause damage to organs through prolonged or repeated exposure. H402 Harmful to aquatic life. H413 May cause long lasting harmful effects to aquatic life.

Prevention

P260 Do not breathe dust. P264 Wash skin thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P284 Wear respiratory protection.

Response

P301 + P310 + P330 IF SWALLOWED: Immediately call a POISON CENTER/ doctor. Rinse mouth. P304 + P340 + P310 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor. P314 Get medical advice/ attention if you feel unwell.

Storage

P403 + P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up.

Disposal

P501 Dispose of contents/ container to an approved waste disposal plant.

2.1 Classification of the substance or mixture

(29 CFR 1910.1200) Hazards for the product as supplied Acute toxicity (Oral) : Category 2 Acute toxicity : Category 2 (Inhalation) Specific target organ : Category 2 toxicity - repeated exposure Short-term (acute) : Category 3 aquatic hazard Long-term (chronic) : Category 4 aquatic hazard Other hazards

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