Sodium Molybdate

HCID 61424
NotesReactions
Substructure searchFind similar structures

Basic information

CAS
13466-16-5
Standard SMILES
[Na+].[Na+].[O]=[Mo](=[O])([O-])[O-]
InChIKey
TVXXNOYZHKPKGW-UHFFFAOYSA-N
Molecular formula
MoO4.2Na
Average molar mass
205.93 g/mol

Overview

Sodium molybdate (anhydrous) is an inorganic sodium salt having molybdate as the counterion. It has a role as a NMR chemical shift reference compound and a poison. It contains a molybdate.

Names & identifiers

Preferred name
Sodium Molybdate
IUPAC
disodium;dioxido(dioxo)molybdenum
English name
Sodium molybdate
Molecular formula
MoNa2O4
Molecular weight
205.91714

Names & synonyms

Sodium molybdateDisodium molybdateSodium molybdate(VI)Natriummolybdatsodium molybdenum oxideMolybdic acid, disodium saltsodium molybdate (anhydrous)Na2MoO4Anhydric sodium molybdate948QAQ08I1Molybdate (MoO42-), disodium, (T-4)-Molybdenum (as sodium)
Show more names
molybdicAnhydrous sodium molybdateSodium molybdatdisodiummolybdateSodiumMolybdateGrSodamidemolybdate
CHEBI:75215NSC-77389RefChem:887699231-551-77631-95-0Molybdate disodiumNatriummolybdat [German]Sodium molybdate (VAN)

Database identifiers

CAS
13466-16-5、7631-95-0
PubChem CID
61424
ChEBI
CHEBI:75215
UNII
948QAQ08I1
EC Number
231-551-7

Properties

Computed structural properties

Topological polar surface area
80.3 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
4
Rotatable bonds
0
Heavy atoms
7

Experimental & physicochemical properties

Chemical ClassesMetals -> Metals, Inorganic Compounds
Density · 2 items

3.78 g/cm³

~3.5 @25 °C

SolubilitySolubility in water, g/100ml at 100 °C: 84
Melting Point · 2 items

687 °C

686 °C

Physical Description · 3 items

Large Crystals; Dry Powder; Liquid; Liquid; Other Solid

White solid; [ICSC] Colorless crystalline solid; [Sigma-Aldrich MSDS]

WHITE POWDER.

Physicochemical properties

Melting point
687 °C · 687 °C (lit.)
Density
3.78 g/mL · 3.78 g/mL at 25 °C (lit.)
refractive index
1.714 · 1.714
storage temp.
4 °C, · Store at 4°C, protect from light, stored under nitrogen
solubility
20.6 mg/mL · insoluble in EtOH; insoluble in DMSO; ≥20.6 mg/mL in H2O
form
Powder

Safety & regulation

GHS classification

GHS Classification · 6 items

This chemical does not meet GHS hazard criteria for 64.5% (493 of 764) of all reports.

Warning

H315 (33.1%): Causes skin irritation [Warning Skin corrosion/irritation]

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 764 reports by companies from 13 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Danger

Hazard information

Regulatory Information · 4 items

Chemical: Molybdic acid (H2MoO4), disodium salt

Molybdate (MoO42-), sodium (1:2), (T-4)- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Molybdate (MoO42-), sodium (1:2), (T-4)- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 03-03-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/15826

Sodium molybdate: Non hazardous

Other Safety InformationIMAP assessments - Molybdic acid (H2MoO4), disodium salt: Human health tier I assessment
Fire HazardsCombustible under specific conditions. Risk of fire and explosion on contact with magnesium.
Hazards Summary · 1 item

No developmental toxicity reported in 1972 study of hamsters; Molybdenum accumulation in reproductive tissues and histopathological testicular changes observed in male rats exposed to high doses for 60 days; [REPROTOX] Oral LD50 (rat) = 250 mg/kg also reported; Causes fatty liver degeneration, and changes in renal tubules in oral lethal-dose studies of dogs, guinea pigs, and rats; Causes abnormal liver function tests, kidney changes, weight loss, normocytic anemia, and other musculoskeletal changes in oral studies of rats; [RTECS] Aerosol causes eye and respiratory tract irritation; Chronic exposure may have effects on the respiratory tract; Possible human carcinogen; [ICSC] A skin and strong eye irritant; Toxic by inhalation; [Sigma-Aldrich MSDS] See Molybdenum.

Chemical DangersDecomposes on heating. This produces toxic fumes including sodium oxide. Reacts violently with halogens. This generates fire and explosion hazard.
Hazard Classes and Categories · 2 items

Skin Irrit. 2 (33.1%)

Acute toxicity (Oral) - Category 3

Safety & protection

Fire FightingIn case of fire in the surroundings, use appropriate extinguishing media.
First Aid Measures · 4 items

Fresh air, rest. Refer for medical attention.

Remove contaminated clothes. Rinse and then wash skin with water and soap.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Give one or two glasses of water to drink. Refer for medical attention .

Safe StorageSeparated from strong oxidants and halogens.
Spillage DisposalSweep spilled substance into covered containers. Personal protection: particulate filter respirator adapted to the airborne concentration of the substance.
Eye PreventionWear safety goggles or eye protection in combination with breathing protection if powder.
Fire PreventionNO open flames.

Toxicology

Adverse EffectsOccupational hepatotoxin - Secondary hepatotoxins: the potential for toxic effect in the occupational setting is based on cases of poisoning by human ingestion or animal experimentation.
Exposure RoutesThe substance can be absorbed into the body by inhalation.
Signs and Symptoms · 4 items

Cough. Sore throat.

Redness.

Redness.

Abdominal pain. Nausea. Vomiting. Diarrhoea.

ICSC Environmental DataEnvironmental effects from the substance have not been investigated adequately.
Toxicity DataLC50 (rat) > 2,080 mg/m3/4hr

Safety data

wgk
1
tsca
TSCA listed
rtecs
QA5075000
risk_code
36/37/38
Signal word
Warning
Symbol(GHS)
GHS07

Chemistry & industry

Uses & manufacturing

Uses · 2 items

Used to make pigments; Also used as a corrosion inhibitor, bath additive for finishing metals, reagent for alkaloids, and micronutrient; [Merck Index] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]

Electroplating [Category: Plate]

U.S. Production2023: 7,000,000 - <8,500,000 lb
Consumer UsesOther
Industry UsesPigment
Household ProductsInformation on 65 consumer products that contain Sodium molybdate in the following categories is provided:
General Manufacturing Information · 2 items

Utilities

Molybdate (MoO42-), sodium (1:2), (T-4)-: ACTIVE

Applications · 4 items

UsesReagent in analytical chemistry, paint pigment, production of molybdated toners and lakes, metal finishing, brightening agent for zinc plating, corro- sion inhibitor, catalyst in dye and pigment produc- tion, additive for fertilizers and feeds, micronutri- ent.

UsesSodium Molybdate is used in method for preparing fermentation medium with reduced color and viscosity.

UsesSodium molybdate (Na2MO4) may be used as an electrolyte additive, for use in electrochemical capacitors. Addition of Na2MO4 as an electrolyte additive may result in enhanced capacitance, corrosion prevention and stabilized performance.It may also be used as a catalyst during the manufacture of paints and dyes.

General DescriptionSodium molybdate has corrosion resistant properties. On heating, it undergoes degradation and releases Na2O fumes.

Preparation methods

PreparationSodium molybdate dihydrate, which is obtained by evaporating an aqueous solution of molybdenum trioxide and sodium hydroxide, can be converted to the anhydrous form by heating at 100 °C.

Upstream & downstream products

Suppliers100 total

河北创海生物科技有限公司+86-86-13131129325 · [email protected]
河北展药生物科技有限公司15369953316 +8615369953316 · [email protected]
武汉吉业升化工有限公司027-83360216 18040558719 · [email protected]
Dayang Chem (Hangzhou) Co.,Ltd.+86-0571-88938639 17705817739 · [email protected]
阿法埃莎（中国）化学有限公司400-6106006 · [email protected]

Additional notes

DefinitionChEBI: Sodium molybdate (anhydrous) is an inorganic sodium salt having molybdate as the counterion. It has a role as a poison and a NMR chemical shift reference compound. It contains a molybdate.

Related reactions

21 records
New reaction record

Compound notes

Loading…