Substance profile
Tetraphosphorus trisulphide
Tetraphosphorus trisulphide is yellow-green orthogonal crystals.
01 · Identification
What Tetraphosphorus trisulphide is
Tetraphosphorus trisulphide is yellow-green orthogonal crystals. Its molecular formula is P4S3 and its molecular weight is 220.1 g/mol. It boils at 408 °C, melts at 173 °C.
Under the GHS it carries the signal word Danger. It is classed as flammable agents - 2nd degree.
02 · Identifiers
Tetraphosphorus trisulphide identifiers and molecular data
Tetraphosphorus trisulphide CAS number and EC number
Tetraphosphorus trisulphide molecular formula and molecular weight
Other names for Tetraphosphorus trisulphide
- phosphorus sesquisulphid
03 · GHS classification
Tetraphosphorus trisulphide hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Tetraphosphorus trisulphide pictograms and signal word
Tetraphosphorus trisulphide hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Flammable solids GHS chapter 2.7 | Category 1 or 2 | H228 | GHS02 |
| In contact with water emits flammable gases GHS chapter 2.12 | Category 1 | H260 | GHS02 |
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Hazardous to the aquatic environment - acute GHS chapter 4.1 | Category 1 | H400 | 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.
Tetraphosphorus trisulphide hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H228 | Flammable solid. |
| H260 | In contact with water releases flammable gases which may ignite spontaneously. |
| H302 | Harmful if swallowed. |
| H400 | Very toxic to aquatic life. |
This page lists only the codes assigned to Tetraphosphorus trisulphid…. 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 Tetraphosphorus trisulphid…
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 Tetraphosphorus… 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
Tetraphosphorus trisulphide precautionary statements
CLP Annex VI assigns 7 precautionary statements to Tetraphosphorus trisulphid…. 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
Tetraphosphorus trisulphide 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 | тетрафосфорен трисулфид фосфорен сесквисулфид |
| Spanish español | Trisulfuro de tetrafósforo sesquisulfuro de fósforo |
| Czech čeština | trisulfid tetrafosforu |
| Danish dansk | tetraphosphortrisulfid phosphorsesquisulfid |
| German Deutsch | Tetraphosphortrisulfid Phosphorsesquisulfid |
| Estonian eesti | tetrafosfortrisulfiid fosforseskvisulfiid |
| Greek ελληνικά | τρισουλφίδιο του τετραφωσφόρoυ sesqui-θειούχος φωσφόρος |
| English English | tetraphosphorus trisulphide phosphorus sesquisulphid |
| French français | trisulfure de tétraphosphore sesquisulfure de phosphore |
| Croatian hrvatski | tetrafosforov trisulfid fosforov seskvisulfid |
| Italian italiano | trisolfuro di tetrafosforo fosforo trisolfuro |
| Latvian latviešu | tetrafosfora trisulfīds fosfora seskvisulfīds |
| Lithuanian lietuvių | tetrafosforo trisulfidas fosforo seskvisulfidas |
| Hungarian magyar | tetrafoszfor-triszulfid foszfor-szeszkviszulfid |
| Maltese Malti | trisulfur tat-tetrafosforu seskwisulfur tal-fosforu |
| Dutch Nederlands | tetrafosfortrisulfide fosforsesquisulfide |
| Polish polski | trisiarczek tetrafosforu |
| Portuguese português | trissulfureto de tetrafósforo sesquissulfureto de fósforo |
| Romanian română | trisulfură de tetrafosfor sesquisulfură de fosfor |
| Slovak slovenčina | trisulfid tetrafosforu seskvisulfid fosforu |
| Slovenian slovenščina | tetrafosforjev trisulfid fosforjev seskvisulfid |
| Finnish suomi | tetrafosforitrisulfidi fosforiseskvisulfidi |
| Swedish svenska | tetrafosfortrisulfid fosforseskvisulfid |
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
Tetraphosphorus trisulphide GHS label elements
Everything CLP Annex VI fixes for Tetraphosphorus trisulphid…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Tetraphosphorus trisulphide
- Flammable solid.
- In contact with water releases flammable gases which may ignite spontaneously.
- Harmful if swallowed.
- Very toxic to aquatic life.
- Do not eat, drink or smoke when using this product.
- Avoid release to the environment.
- IF SWALLOWED:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Rinse mouth.
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Tetraphosphorus trisulphid… in the GHS label constructor →
07 · Health hazards
Tetraphosphorus trisulphide health hazards and exposure limits
Tetraphosphorus trisulphide hazard summary
A dangerous fire risk by friction; [Hawley] A skin, eye, and respiratory tract irritant; Occupationally exposed individuals have reported quickly developing erythema with vesicles or pustules accompanied by pain and pruritis; Allergic contact dermatitis and contact urticaria have also been reported; Emergency treatment: Phosphorus; [HSDB] (PubMed search for (1314-85-8 OR Phosphorus sesquisulfide} AND human[mh] AND (Occupational Diseases [mh] OR Occupational Exposure [mh]) yields no results about allergic skin disease.) Ignites easily by friction; Reacts slowly with water producing phosphoric acid and hydrogen sulfide; A strong reducing agent; May ignite on exposure to moisture; [CAMEO] Causes changes in renal tubules and glomeruli in oral lethal-dose studies of rabbits; [RTECS] A mucous membrane and upper respiratory tract irritant; [Aldrich MSDS]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Tetraphosphorus trisulphide 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.
Tetraphosphorus trisulphide boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 407.5 °C (765.5 °F) | HSDB |
Tetraphosphorus trisulphide melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 172.5 °C (342.5 °F) | HSDB |
Tetraphosphorus trisulphide density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 2.03 g/cm³ | at 20 °C | HSDB |
Tetraphosphorus trisulphide solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Solubility in benzene = 2.5 g/100g at 17 °C, 17 g/100g at 80 °C | at 17 °C | HSDB |
| 100 G/100 CC CARBON DISULFIDE AT 17 °C; 11.1 G/100 CC BENZENE AT 30 °C | at 17 °C | HSDB |
Tetraphosphorus trisulphide autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 100 °C (212 °F) | HSDB |
Tetraphosphorus trisulphide lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | Flammable by spontaneous ignition. | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Tetraphosphorus trisulphid… fire and explosion behaviour
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Tetraphosphorus trisulphide fire potential
HIGHLY FLAMMABLE.
Source: Hazardous Substances Data Bank (HSDB)
Solubility
Insoluble in cold water; decomposed by hot water, yielding H2S; Soluble in carbon disulfide (60% w/w at 20 °C); soluble in benzene, similar hydrocarbons, phorphorus trichloride
Source: HSDB
10 · Handling and storage
Tetraphosphorus trisulphide storage and handling
Tetraphosphorus trisulphide storage conditions
Protect against physical damage. Store in cool, ventilated place. Separate from other materials.
Source: Hazardous Substances Data Bank (HSDB)
Tetraphosphorus trisulphide incompatible materials
Decomp by hot water, yielding hydrogen sulfide (H2S)
Source: Hazardous Substances Data Bank (HSDB)
Tetraphosphorus trisulphide reactivity
PHOSPHORUS SESQUISULFIDE is a reducing agent.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Tetraphosphorus trisulphi… in the storage compatibility matrix →
11 · Questions
Tetraphosphorus trisulphide — frequently asked questions
What is the CAS number of Tetraphosphorus trisulphide?
The CAS number of Tetraphosphorus trisulphide is 1314-85-8. Its EC number is 215-245-0.
What is the chemical formula of Tetraphosphorus trisulphide?
The molecular formula of Tetraphosphorus trisulphide is P4S3 and its molecular weight is 220.1 g/mol.
What does a Tetraphosphorus trisulphide label have to show?
Under CLP Annex VI the label for Tetraphosphorus trisulphide carries the pictograms Flame, Exclamation mark and Environment and the signal word is Danger.
Is Tetraphosphorus trisulphide flammable?
Yes. CLP Annex VI assigns Tetraphosphorus trisulphide H228 and H260 — flammable solid.
Is Tetraphosphorus trisulphide a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Tetraphosphorus trisulphide. 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 boiling point of Tetraphosphorus trisulphide?
The boiling point reported for Tetraphosphorus trisulphide is 407.5 °C (765.5 °F) (HSDB).
What is the melting point of Tetraphosphorus trisulphide?
The melting point reported for Tetraphosphorus trisulphide is 172.5 °C (342.5 °F) (HSDB).
How should Tetraphosphorus trisulphide be stored?
Protect against physical damage. Store in cool, ventilated place. Separate from other materials. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Tetraphosphorus trisulphid…
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