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Sulfates and sulfur salts

Barium polysulfide

Also known as Barium sulfide (Ba(Sx)), Neopol, Barium sulfide ba(sn)

CAS 50864-67-0Formula BaS5Molar mass 297.66 g/molEC 256-814-3
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment
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Barium polysulfide chemical structure, BaS5, CAS 50864-67-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
50864-67-0
Formula
BaS5
Molar mass
297.66 g/mol
EC number
256-814-3
HS code
283090
Category
Sulfates and sulfur salts

What is Barium polysulfide?

Plain description, key identifiers and synonyms

Barium polysulfide is a chemical substance with the molecular formula BaS5 and a molar mass of 297.66 g/mol. Its CAS registry number is 50864-67-0.

Identifiers

Registry numbers, names and line notations, tap to copy

CAS number
50864-67-0 CAS number cross-checked
EC number
256-814-3
Molecular formula
BaS5
UNII
PET6ZVZ3MK
InChIKey
MBAUUUWPHOQTOI-UHFFFAOYSA-L
InChI
InChI=1S/Ba.H2S5/c;1-3-5-4-2/h;1-2H/q+2;/p-2
SMILES (canonical and isomeric)
[S-]SSS[S-].[Ba+2]

Synonyms

  • Barium sulfide (Ba(Sx))
  • Neopol
  • Barium sulfide ba(sn)

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
297.66 g/molcalc.
Exact mass
297.7656 Dacalc.
LogP (octanol/water)
1.56calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
2calc.
Heavy atoms
6calc.
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
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
  • H400Very toxic to aquatic life.
Precautionary statements (18)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • 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

Barium polysulfide suppliers

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Barium polysulfide 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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 016-003-00-5

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Barium polysulfide 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 Barium polysulfide is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Barium polysulfide, based on the data on this page

What is Barium polysulfide?

Barium polysulfide is a chemical substance with the molecular formula BaS5 and a molar mass of 297.66 g/mol. Its CAS registry number is 50864-67-0.

What is the CAS number of Barium polysulfide?

The CAS registry number of Barium polysulfide is 50864-67-0.

What is the molecular formula and weight of Barium polysulfide?

The molecular formula of Barium polysulfide is BaS5 and its molar mass is 297.66 g/mol.

Is Barium polysulfide hazardous?

Barium polysulfide carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Barium polysulfide?

Barium polysulfide 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 Barium polysulfide?

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What is the price of Barium polysulfide?

Suppliers quote Barium polysulfide 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 Barium polysulfide

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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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