Molybdic acid (HCID 82208)

Überblick

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

Namen und Bezeichner

Bevorzugter Name: Molybdic acid
IUPAC: dihydroxy(dioxo)molybdenum
Lokaler Name: Diammoniumdimolybdat
Englischer Name: Ammonium dimolybdate
Summenformel: H6MoNO+
Molmasse: 132

Namen und Synonyme

Molybdic acid7782-91-4Molybdic(VI) acidMolybdate (MoO42-), dihydrogen, (T-4)-I96N991J1NCHEBI:25371RefChem:819194231-970-5dihydroxy(dioxo)molybdenumMolybdicacidDiammonium dimolybdateUNII-I96N991J1N

Weitere Namen anzeigen

Molybdic(Ⅵ) acidAmmonium DimolyPateDiammoniumdimolybdatAMMONIUM DIMOLYBDATEAMMONIUM MOLYBDATE TSmolybdate, diammoniumAmmoniumdimolybdate,99%AMMONIUM MOLYBDATE (DI)

H2MoO4EINECS 231-970-5MFCD00036287Molybdate (MoO42-), dihydrogen, (beta-4)-Molybdate (MoO42-), hydrogen (1:2), (T-4)-Molybdic acid (H2MoO4)H2MoO4.12H2O11099-00-6

Datenbank-Bezeichner

CAS: 27546-07-2、7782-91-4
PubChem CID: 82208
ChEBI: CHEBI:25371
UNII: I96N991J1N
EC Number: 231-970-5、248-517-2

Eigenschaften

Berechnete Struktureigenschaften

Polarare Oberfläche (TPSA): 74,6 Å²
H-Brücken-Donoren: 2
H-Brücken-Akzeptoren: 4
Frei drehbare Bindungen: 0
Schwere Atome: 5
Formalladung: 0
Komplexität: 81,3

Experimentelle und physikochemische Eigenschaften

Chemical Classes · 2 Einträge

Metals -> Metals, Inorganic Compounds

Physical Description · 4 Einträge

Dry Powder

Monohydrate: White solid; Slightly soluble in cold water, more soluble in hot water; [Merck Index] Yellowish odorless powder; Insoluble in water; [MSDSonline]

White powder with an ammoniacal odor; Soluble in water; [Alfa Aesar MSDS]

V (@25 °C)

Physikochemische Eigenschaften

Schmelzpunkt: 300 °C · 300 °C
Dichte: 3.1 · 3.1
storage temp.: Sealed in dry,Room Temperature
Löslichkeit: 2 O · soluble in H2O
Aggregatzustand: Powder
Farbe: white
Wasserlöslichkeit: Soluble in water.
CAS Datenbank: 27546 · 27546-07-2(CAS DataBase Reference)
EPA chemische Informationen: Ammonium molybdenum oxide ((NH4)2Mo2O7) (27546-07-2)

Sicherheit und Regulatorisches

GHS-Klassifizierung

GHS Classification · 6 Einträge

This chemical does not meet GHS hazard criteria for 57.3% (125 of 218) of all reports.

Warning

H319 (42.2%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

P260, P261, P264+P265, P271, P280, P304+P340, P305+P351+P338, P319, P337+P317, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 218 reports by companies from 13 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

This chemical does not meet GHS hazard criteria for 99.1% (211 of 213) of all reports.

Gefahrenhinweise

Regulatory Information · 6 Einträge

Chemical: Molybdate (MoO42-), dihydrogen, (T-4)-

Chemical: Molybdate (Mo2O72-), diammonium

Molybdate (MoO42-), hydrogen (1:2), (T-4)- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Molybdate (MoO42-), hydrogen (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: 01-06-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/17317

Status: Active Update: 13-09-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/14454

Molybdate (Mo2O72-), diammonium: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.

Other Safety Information · 2 Einträge

IMAP assessments - Molybdenum Trioxide and Molybdic Acid: Human health tier II assessment

IMAP assessments - Molybdate (Mo2O72-), diammonium: Human health tier I assessment

Hazards Summary · 2 Einträge

Prepared as the monohydrate, molybdic(VI) acid has the formula H2MoO4; [Merck Index] An eye irritant; [eChemPortal: ERMA] An irritant; [MSDSonline] See Molybdenum.

May cause irritation; [Alfa Aesar MSDS] See Sodium molybdate(VI) dihydrate.

Hazard Classes and Categories · 3 Einträge

Not Classified

Eye Irrit. 2 (42.2%)

Carcinogenicity - category 2

Sicherheit und Schutzausrüstung

Threshold Limit Values (TLV) · 2 Einträge

0.5 [mg/m3], as Mo, respirable fraction

Permissible Exposure Limit (PEL) · 2 Einträge

5.0 [mg/m3], as Mo

Protective Action Criteria (PAC) · 6 Einträge

12 [mg/m3]

130 [mg/m3]

770 [mg/m3]

2.5 [mg/m3]

28 [mg/m3]

170 [mg/m3]

Immediately Dangerous to Life or Health (IDLH) · 2 Einträge

1000.0 [mg/m3], as Mo

Sicherheitsdaten

tsca: TSCA listed
hs_code: 28417010
risk_code: 36/37/38
hazard_code: Xi
safety_code: 24/25

Chemie und Industrie

Verwendung und Herstellung

Uses · 2 Einträge

Used in chemical synthesis, for extraction, refining, and processing of metals, as a coloring agent, construction materials additive, flame retardant, process regulator, catalyst, and in the production of other molybdenum compounds and alloys; [IUCLID] Used to make catalysts, activated charcoal impregnants, molybdenum compounds, base metals and alloys, and large scale and fine chemicals, to formulate lubricants-lubricant additives-greases, coatings-paints-thinners, fillers-putties-plasters, metal surface treatment products (including those for galvanizing and electroplating), non-metal surface treatment products, flux coating/core welding and soldering products, and laboratory chemicals, and as a micronutrient in fertilizers; [ExPub: ECHA REACH Registrations]

Welding [Category: Weld]

U.S. Production2023: <50,000 lb

Industry UsesIntermediate

General Manufacturing Information · 2 Einträge

All Other Basic Organic Chemical Manufacturing

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

Anwendungen · 1 Eintrag

VerwendenAmmonium molybdate (di) is used as pigments, agricultural fertilizer, color lakes and fabric fire retardant agent. It is also used as a raw material for the production of molybdenum wire, ceramic glazes and other molybdenum compounds. Further, it is used in photography, ceramics and paints. It is also used reagent for analysis as well as in the determination of phosphorus in analytical chemistry. In addition, it is used as a catalyst in the petrochemical industry.