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Oxides and peroxides

Molybdic acid

Also known as Molybdic(VI) acid, Molybdate (MoO42-), dihydrogen, (T-4)-, dihydroxy(dioxo)molybdenum

CAS 7782-91-4Formula H2MoO4Molar mass 161.95 g/molEC 231-970-5
GHS signal word: Warning. Pictograms: Harmful or irritant, Serious health hazard 19 suppliers listed
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Molybdic acid chemical structure, H2MoO4, CAS 7782-91-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
7782-91-4
Formula
H2MoO4
Molar mass
161.95 g/mol
Physical form
Powder
HS code
282570
Category
Oxides and peroxides
Illustrative photo, closed jumbo bulk bags in a warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Molybdic acid?

Plain description, key identifiers and synonyms

Molybdic acid is a molybdenum oxoacid. It is a conjugate acid of a hydrogenmolybdate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dihydroxy(dioxo)molybdenum
CAS number
7782-91-4Other or deprecated CAS: 11099-00-6
EC numbers
231-970-5, 248-517-2
Molecular formula
H2MoO4
UNII
I96N991J1N
MDL number
MFCD00036287
INCI name
MOLYBDIC ACID
InChIKey
VLAPMBHFAWRUQP-UHFFFAOYSA-L
InChI
InChI=1S/Mo.2H2O.2O/h;2*1H2;;/q+2;;;;/p-2
SMILES (canonical and isomeric)
O[Mo](=O)(=O)O

Synonyms

  • Molybdic(VI) acid
  • Molybdate (MoO42-), dihydrogen, (T-4)-
  • dihydroxy(dioxo)molybdenum
  • Molybdicacid
  • Diammonium dimolybdate
  • H2MoO4
  • Molybdate (MoO42-), dihydrogen, (beta-4)-
  • Molybdate (MoO42-), hydrogen (1:2), (T-4)-
  • Molybdic acid (H2MoO4)
  • H2MoO4.12H2O
  • dihydroxidodioxidomolybdenum
  • Molybdic acid, ACS grade
  • (T-4)-Hydrogen molybdate (MoO42-) (2:1)
  • Molybdic (VI) acid
  • [MoO2(OH)2]
  • Molybdic acid, LR, >=85%
  • Molybdic(VI) acid (H2MoO4)
  • Molybdate (Mo2O72-), diammonium
  • Dihydrogen tetraoxomolybdate(2-)
  • molybdic acid molybdic(VI) acid H2MoO4
  • Molybdic acid, p.a., ACS reagent, 85.0%
  • Molybdenum hydroxide oxide (mo(oh)2o2)
  • Molybdenum hydroxide oxide (moo2(oh)2)
  • Molybdic acid, >=85.0% MoO3 basis, ACS reagent

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
Powderexp.

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
161.95 g/molcalc.
Exact mass
163.9007 Dacalc.
LogP (octanol/water)
-1.35calc.
Topological polar surface area
74.6 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
5calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

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
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
  • H373May cause damage to organs through prolonged or repeated exposure.
Precautionary statements (12)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • 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.
  • 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.
  • P337 + P317If eye irritation persists: Get medical help.
  • 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

Molybdic acid suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 19 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

19 suppliers in 6 countries

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Molybdic acid price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Industrial uses: Intermediate.

Cosmetic ingredient, INCI name MOLYBDIC ACID(preservative)

Functional uses

  • Preservative

Cosmetic functions

  • Preservative

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

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 Molybdic acid is traded under.

HS 2825.70Indicative HS code

Molybdenum oxides and hydroxides

World exports in 2024
$807M
−16.8% vs 2023, imports $525M
2019 to 2024
Top exporters
  1. Chile43.6%
  2. Netherlands18.4%
  3. China13.7%
Top importers
  1. United States27.0%
  2. Japan15.4%
  3. Germany8.6%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Molybdic acid, based on the data on this page

What is Molybdic acid?

Molybdic acid is a molybdenum oxoacid. It is a conjugate acid of a hydrogenmolybdate.

What is the CAS number of Molybdic acid?

The CAS registry number of Molybdic acid is 7782-91-4. Other or deprecated CAS numbers: 11099-00-6.

What is the molecular formula and weight of Molybdic acid?

The molecular formula of Molybdic acid is H2MoO4 and its molar mass is 161.95 g/mol.

What is Molybdic acid used for?

Industrial uses: Intermediate.

Is Molybdic acid hazardous?

Molybdic acid carries the GHS signal word "Warning". Main hazards: causes serious eye irritation, may cause respiratory irritation, may cause damage to organs through prolonged or repeated exposure. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Molybdic acid?

Molybdic acid is usually classified under HS code 282570 (Molybdenum oxides and hydroxides). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Molybdic acid?

CompoundList lists 19 suppliers of Molybdic acid in India, United States, China, Brazil and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Molybdic acid in India?

10 suppliers in India list Molybdic acid on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Molybdic acid?

Suppliers quote Molybdic acid 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 Molybdic acid

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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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