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Sulfates and sulfur salts

Lead sulfide (PbS)

Also known as C.I. 77640, CI 77640, Lead monosulfide

CAS 1314-87-0Formula PbSMolar mass 239.27 g/molEC 215-246-6
GHS signal word: Danger. Pictograms: Harmful or irritant, Serious health hazard, Hazardous to the environment 4 suppliers listed
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Lead sulfide (PbS) chemical structure, PbS, CAS 1314-87-0
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Silvery, metallic crystals or black powder
Melting point
1,113 °C
Boiling point
1,281 °C
Density
7.60 g/cm³
Solubility
0.01244 g/100 mL water at 20 °C
HS code
283090
Category
Sulfates and sulfur salts
Illustrative photo, metallic grey powder in a glass bottle on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Lead sulfide (PbS)?

Plain description, key identifiers and synonyms

Lead sulfide (PbS) is a chemical substance with the molecular formula PbS and a molar mass of 239.27 g/mol. Its CAS registry number is 1314-87-0. The IUPAC name is lead(2+) sulfide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
lead(2+) sulfide
CAS number
1314-87-0 CAS number cross-checkedOther or deprecated CAS: 39377-56-5
EC number
215-246-6
Molecular formula
PbS
UNII
2425D15SYM
InChIKey
FILXVLQXZYXBSJ-UHFFFAOYSA-N
InChI
InChI=1S/Pb.S/q+2;-2
SMILES (canonical and isomeric)
[S-2].[Pb+2]

Synonyms

  • C.I. 77640
  • CI 77640
  • Lead monosulfide
  • Lead sulphide
  • Lead(II) Sulfide
  • Natural lead sulfide
  • P 37 (filter)
  • lead monosulfide (galena)
  • lead(2+), sulfide
  • plumbous, sulfide
  • Lead sulfide

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Silvery, metallic crystals or black powderexp.
Melting point
1,113 °Cexp.
Boiling point
1,281 °Cexp.
Density
7.60 g/cm³exp.
Solubility
0.01244 g/100 mL water at 20 °Cexp.
Vapour pressure
1 Pa at 656 °C, 10 Pa at 741 °C, 100 Pa at 838 °C, 1kPa at 953 °C, 10 kPa at 1088 °C, 100 kPa at 1280 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
239.27 g/molcalc.
Exact mass
239.9487 Dacalc.
LogP (octanol/water)
-0.38calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
2calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302 + H332Harmful if swallowed. Harmful if inhaled.
  • H302Harmful if swallowed.
  • H332Harmful if inhaled.
  • H350May cause cancer.
  • H360May damage fertility or the unborn child.
  • H360DfMay damage the unborn child. Suspected of damaging fertility.
  • H361Suspected of damaging fertility or the unborn child.
  • H373May cause damage to organs through prolonged or repeated exposure.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (17)
  • P203Obtain, read and follow all safety instructions before use.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P330Rinse mouth.
  • P391Collect spillage.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Lead sulfide (PbS) suppliers

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Where suppliers are based

4 suppliers in 2 countries

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Lead sulfide (PbS) price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Friction additive in clutch facings and disc brakes.

Cermics, infrared radiation detector, semiconductor, ceramic glaze, source of lead.

Lead sulfide (is) used in ceramics and ... as a humidity sensor in rockets.

Photoconductive cells, infrared detectors, transistors, humidity sensors in rockets, catalysts for removing mercaptans from petroleum distillates, mirror coatings to limit reflectivity, high temperature solid-film lubricants, and in blue lead pigments.

Lead sulfide (PbS) quantum dots (QDs) have been applied in the biomedical area because they offer an excellent platform for theragnostic applications. ... (Lead sulfide quantum dots).

Industrial uses: Other.

Industries and functions

How it is made

By passing hydrogen sulfide gas into an acid solution of lead nitrate.

It is the chief ore of lead and is prepared by heating metallic lead in sulfur vapor.

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Lead sulfide (PbS) is traded under.

HS 2830.90Indicative HS code

Sulphides, polysulphides, whether or not chemically defined, other

World exports in 2024
$382M
+2.0% vs 2023, imports $246M
2019 to 2024
Top exporters
  1. Austria33.1%
  2. Philippines31.4%
  3. Germany9.1%
Top importers
  1. Germany12.7%
  2. South Korea11.7%
  3. China10.7%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Lead sulfide (PbS) is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Lead sulfide (PbS), based on the data on this page

What is Lead sulfide (PbS)?

Lead sulfide (PbS) is a chemical substance with the molecular formula PbS and a molar mass of 239.27 g/mol. Its CAS registry number is 1314-87-0. The IUPAC name is lead(2+) sulfide.

What is the CAS number of Lead sulfide (PbS)?

The CAS registry number of Lead sulfide (PbS) is 1314-87-0. Other or deprecated CAS numbers: 39377-56-5.

What is the molecular formula and weight of Lead sulfide (PbS)?

The molecular formula of Lead sulfide (PbS) is PbS and its molar mass is 239.27 g/mol.

What is Lead sulfide (PbS) used for?

Friction additive in clutch facings and disc brakes. Cermics, infrared radiation detector, semiconductor, ceramic glaze, source of lead. Lead sulfide (is) used in ceramics and ... as a humidity sensor in rockets.

Is Lead sulfide (PbS) hazardous?

Lead sulfide (PbS) carries the GHS signal word "Danger". Main hazards: harmful if swallowed. harmful if inhaled, harmful if swallowed, harmful if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Lead sulfide (PbS)?

Lead sulfide (PbS) is usually classified under HS code 283090 (Sulphides, polysulphides, whether or not chemically defined, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Lead sulfide (PbS)?

CompoundList lists 4 suppliers of Lead sulfide (PbS) in United States and Canada. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Lead sulfide (PbS)?

Suppliers quote Lead sulfide (PbS) on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Lead sulfide (PbS)

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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