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Silicates, borates and other salts

Potassium molybdate(VI)

Also known as Potassium molybdate, Potassium molybdenum oxide, Dipotassium molybdate

CAS 13446-49-6Formula K2MoO4Molar mass 238.13 g/molEC 236-599-2
GHS signal word: Warning. Pictograms: Harmful or irritant 4 suppliers listed
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Potassium molybdate(VI) chemical structure, K2MoO4, CAS 13446-49-6
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Solid
Melting point
919 °C
Density
2.3 @25 °C
HS code
284170
Category
Silicates, borates and other salts
Illustrative photo, assorted laboratory chemical bottles and jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Potassium molybdate(VI)?

Plain description, key identifiers and synonyms

Potassium molybdate(VI) is a chemical substance with the molecular formula K2MoO4 and a molar mass of 238.13 g/mol. Its CAS registry number is 13446-49-6. The IUPAC name is dipotassium, dioxido(dioxo)molybdenum.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dipotassium, dioxido(dioxo)molybdenum
CAS number
13446-49-6
EC number
236-599-2
Molecular formula
K2MoO4
MDL number
MFCD00011370
InChIKey
NUYGZETUIUXJCO-UHFFFAOYSA-N
InChI
InChI=1S/2K.Mo.4O/q2*+1;;;;2*-1
SMILES (canonical and isomeric)
[O-][Mo](=O)(=O)[O-].[K+].[K+]

Synonyms

  • Potassium molybdate
  • Potassium molybdenum oxide
  • Dipotassium molybdate
  • Potassium orthomolybdate
  • Dipotassium tetraoxomolybdate
  • Dipotassium tetraoxomolybdate(2-)
  • Molybdate (moo4(sup 2-)), dipotassium, (T-4)-
  • Molybdic acid, dipotassium salt
  • Dipotassium tetraoxomolybdate(2)
  • Molybdate (MoO42), dipotassium, (T4)
  • (T4)Molybdate (MoO42) potassium (1:2)
  • Molybdate (MoO4(sup 2)), dipotassium, (T4)
  • Molybdate (MoO42), potassium (1:2), (T4)
  • Molybdate (MoO4(sup 2)), dipotassium, (T4) (9CI)
  • Molybdate (moo4(sup 2-)), dipotassium, (T-4)-(9CI)
  • Potassiummolybdate
  • Potassium molybdenum oxide, anhydrous

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

Physical form
Solidexp.
Melting point
919 °Cexp.
Density
2.3 @25 °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
238.13 g/molcalc.
Exact mass
239.8125 Dacalc.
LogP (octanol/water)
-8.61calc.
Topological polar surface area
80.26 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
0calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.

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

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • 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.
  • 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.
  • 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

Potassium molybdate(VI) suppliers

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Where suppliers are based

4 suppliers in 2 countries

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Potassium molybdate(VI) 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

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 Potassium molybdate(VI) is traded under.

HS 2841.70Indicative HS code

Molybdates

World exports in 2024
$297M
−1.5% vs 2023, imports $263M
2019 to 2024
Top exporters
  1. United States21.7%
  2. Netherlands19.7%
  3. Chile13.7%
Top importers
  1. China17.5%
  2. United States13.6%
  3. Denmark7.6%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Potassium molybdate(VI), based on the data on this page

What is Potassium molybdate(VI)?

Potassium molybdate(VI) is a chemical substance with the molecular formula K2MoO4 and a molar mass of 238.13 g/mol. Its CAS registry number is 13446-49-6. The IUPAC name is dipotassium, dioxido(dioxo)molybdenum.

What is the CAS number of Potassium molybdate(VI)?

The CAS registry number of Potassium molybdate(VI) is 13446-49-6.

What is the molecular formula and weight of Potassium molybdate(VI)?

The molecular formula of Potassium molybdate(VI) is K2MoO4 and its molar mass is 238.13 g/mol.

Is Potassium molybdate(VI) hazardous?

Potassium molybdate(VI) 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 Potassium molybdate(VI)?

Potassium molybdate(VI) is usually classified under HS code 284170 (Molybdates). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Potassium molybdate(VI)?

CompoundList lists 4 suppliers of Potassium molybdate(VI) in United States and India. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Potassium molybdate(VI) in India?

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What is the price of Potassium molybdate(VI)?

Suppliers quote Potassium molybdate(VI) 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 Potassium molybdate(VI)

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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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