Substance profile
Dithallium sulphate
Dithallium sulphate is white, rhomboid prisms and is odorless.
01 · Identification
What Dithallium sulphate is
Dithallium sulphate is white, rhomboid prisms and is odorless. It melts at 632 °C.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Dithallium sulphate identifiers and molecular data
Dithallium sulphate CAS number and EC number
Other names for Dithallium sulphate
- thallic sulphate
03 · GHS classification
Dithallium sulphate hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Dithallium sulphate pictograms and signal word
Dithallium sulphate hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 1 or 2 | H300 | GHS06 |
| Skin corrosion/irritation GHS chapter 3.2 | Category 2 | H315 | GHS07 |
| Specific target organ toxicity - repeated exposure GHS chapter 3.9 | Category 1 | H372 | GHS08 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 2 | H411 | GHS09 |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
Dithallium sulphate hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H300 | Fatal if swallowed. |
| H372 | Causes damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H315 | Causes skin irritation. |
| H411 | Toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Dithallium sulphate. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for Dithallium sulphate
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of Dithallium sulphate issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
04 · Precautionary statements
Dithallium sulphate precautionary statements
CLP Annex VI assigns 15 precautionary statements to Dithallium sulphate. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
Prevention
What to do before and during handling so the hazard never happens.
Response
What to do once exposure, spillage or fire has already happened.
Disposal
What has to happen to the contents and the empty container.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
Dithallium sulphate name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | диталиев сулфат талиев сулфат |
| Spanish español | Sulfato de ditalio sulfato tálico |
| Czech čeština | síran thallný |
| Danish dansk | dithalliumsulfat thallium(I)sulfat |
| German Deutsch | Dithalliumsulfat Thallium(I)-sulfat |
| Estonian eesti | ditalliumsulfaat talliumsulfaat |
| Greek ελληνικά | θειικό διθάλλιο θειικό θάλλιο(III) |
| English English | dithallium sulphate thallic sulphate |
| French français | sulfate de dithallium sulfate thallique |
| Croatian hrvatski | ditalijev sulfat talijev sulfat |
| Italian italiano | solfato di ditallio |
| Latvian latviešu | ditallija sulfāts tallija(III) sulfāts |
| Lithuanian lietuvių | ditalio sulfatas talio sulfatas |
| Hungarian magyar | ditallium-szulfát tallium-szulfát |
| Maltese Malti | sulfat tad-ditallju sulfat talliku |
| Dutch Nederlands | dithalliumsulfaat thalliumsulfaat |
| Polish polski | siarczan(VI) talu(I) siarczan(VI) ditalusiarczan talawy |
| Portuguese português | sulfato de ditálio sulfato tálico |
| Romanian română | sulfat de ditaliu sulfat talic |
| Slovak slovenčina | síran tálny |
| Slovenian slovenščina | ditalijev sulfat talijev sulfat |
| Finnish suomi | ditalliumsulfaatti talliumsulfaatti |
| Swedish svenska | ditalliumsulfat talliumsulfat |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
Dithallium sulphate GHS label elements
Everything CLP Annex VI fixes for Dithallium sulphate, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Dithallium sulphate
- Fatal if swallowed.
- Causes damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Causes skin irritation.
- Toxic to aquatic life with long lasting effects.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Wash … thoroughly after handling.
- Do not eat, drink or smoke when using this product.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF ON SKIN:
- Immediately call a POISON CENTER/doctor/…
- Get medical advice/attention.
- Get medical advice/attention if you feel unwell.
- Rinse mouth.
- If skin irritation occurs:
- Wash with plenty of water/…
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Dithallium sulphate in the GHS label constructor →
07 · Health hazards
Dithallium sulphate health hazards and exposure limits
Dithallium sulphate hazard summary
A skin and eye irritant; Can be absorbed through skin; Can cause thallium poisoning; [ICSC] See Thallium and linked occupational diseases.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Dithallium sulphate carcinogenicity classification
Cancer Classification: Group D Not Classifiable as to Human Carcinogenicity
Source: Hazardous Substances Data Bank (HSDB)
CLASSIFICATION: D; not classifiable as to human carcinogenicity. BASIS FOR CLASSIFICATION: Based on the lack of carcinogenicity data in animals and humans. HUMAN CARCINOGENICITY DATA: Inadequate. ANIMAL CARCINOGENICITY DATA: None.
Source: Hazardous Substances Data Bank (HSDB)
An IARC group and a CLP classification answer different questions. IARC judges whether the evidence for cancer in humans is strong enough; CLP Annex VI is the legally binding EU classification. A substance can carry one and not the other.
Dithallium sulphate occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | 0.1 [mg/m3], as Tl | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | 15 mg Tl/m3 (NIOSH, 2024) | CAMEO Chemicals |
| IDLH | 15.0 [mg/m3], as Tl (soluble compounds) | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | 15 mg/cu m (as Tl). /Thallium (soluble cmpds, as Tl)/ | Hazardous Substances Data Bank (HSDB) |
These are United States values. The European Union sets its own indicative and binding limits, and the figure that applies at a given workplace is the one in the local regulation — not the one shown here.
08 · Physical and chemical properties
Dithallium sulphate properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
Dithallium sulphate boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | Decomposes | decomposes | HSDB |
| Decomposes (EPA, 1998) | decomposes | CAMEO |
Dithallium sulphate melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 632 °C (1169.6 °F) | HSDB | |
| 632.22 °C (1170 °F) | CAMEO |
Dithallium sulphate density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 6.77 g/cm³ | HSDB |
Dithallium sulphate solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Solubility in water, g/100ml at 20 °C: 4.87 (moderate) | at 20 °C | ICSC |
| 48.7 g/l @ 15 °C; 191.4 g/l @ 100 °C | at 15 °C | HSDB | |
| Solubility in 100 ml water at 0 °C: 2.70 g, at 20 °C: 4.87 g, at 100 °C: 18.45 g | at 0 °C | HSDB |
Dithallium sulphate vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | Zero | HSDB | |
| Inappreciable (EPA, 1998) | CAMEO |
Dithallium sulphate corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | Slightly corrosive to iron | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Dithallium sulphate storage and handling
Dithallium sulphate safe storage
Provision to contain effluent from fire extinguishing. Store only in original container. Well closed. Separated from strong oxidants and food and feedstuffs. Store in an area without drain or sewer access.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Dithallium sulphate reactivity
THALLIUM SULFATE has weak oxidizing and weak reducing powers. Redox reactions can however still occur.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Dithallium sulphate in the storage compatibility matrix →
10 · Questions
Dithallium sulphate — frequently asked questions
What is the CAS number of Dithallium sulphate?
The CAS number of Dithallium sulphate is 7446-18-6. Its EC number is 231-201-3.
What does a Dithallium sulphate label have to show?
Under CLP Annex VI the label for Dithallium sulphate carries the pictograms Skull and crossbones, Health hazard and Environment and the signal word is Danger.
Is Dithallium sulphate flammable?
CLP Annex VI assigns Dithallium sulphate no flammability hazard class. That is not a statement that it cannot burn: the harmonised list only records the hazards that were assessed for it.
Is Dithallium sulphate a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Dithallium sulphate. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.
What is the exposure limit for Dithallium sulphate?
The US occupational exposure limit reported for Dithallium sulphate is 0.1 [mg/m3], as Tl (Haz-Map, Information on Hazardous Chemicals and Occupational Diseases). Limits differ by country: the EU sets its own indicative and binding values, and the figure that applies at a given workplace is the one in the local regulation.
What is the boiling point of Dithallium sulphate?
The boiling point reported for Dithallium sulphate is Decomposes, decomposes (HSDB).
What is the melting point of Dithallium sulphate?
The melting point reported for Dithallium sulphate is 632 °C (1169.6 °F) (HSDB).
Nearby
Substances next to Dithallium sulphate
Keep going: substances starting with D, or search the whole database by name, CAS number, pictogram or signal word.