Ammonium Molybdate Tetrahydrate

CAS Number: 7803-55-6

Molecular Formula: H₄NO₃V

Molecular Weight: 116.94

Common Names & Grade Specifications:

Ammonium metavanadate, 99+% purity
Ammonium vanadium oxide (ACS grade, minimum 99.0% purity)
Ammonium vanadium oxide (Puratronic® grade, 99.995% purity on metals basis)
Appearance: White crystalline powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

Description

This product is widely deployed across multiple industrial fields. It acts as a catalyst for various organic synthesis reactions. When subjected to thermal decomposition, ammonium metavanadate produces vanadium pentoxide (V₂O₅). The resulting vanadium pentoxide serves as a common catalyst, as well as a key precursor for manufacturing other vanadium-containing compounds and metallic vanadium.

In analytical chemistry, it is widely used as a standard laboratory reagent. It also functions as a developing agent in the photographic industry. For textile production, it is applied as an auxiliary agent in fabric dyeing and printing processes. Additionally, it is commonly used as a drying agent in paint formulations.

Ammonium Metavanadate Chemical Properties

Melting point	200 °C
bulk density	1000kg/m3
density	2.32 g/cm3 at 25 °C (lit.)
storage temp.	Store at RT.
solubility	H2O: soluble
form	Solid
color	White to yellow
Specific Gravity	2.33
Odor	Odorless
PH	7 (5.1g/l, H2O, 20℃)
Water Solubility	5.1 g/L (20 ºC)
Merck	14,568
Exposure limits	NIOSH: Ceiling 0.05 mg/m3
Stability:	Stable. Incompatible with strong acids, strong oxidizing agents. Protect from moisture – hygroscopic.
Cosmetics Ingredients Functions	BUFFERING
CAS DataBase Reference	7803-55-6(CAS DataBase Reference)
EPA Substance Registry System	Ammonium vanadate (7803-55-6)

Safety Information

Hazard Codes	T+,T
Risk Statements	25-26-36/37/38-20-34-22-36/37-23/24/25
Safety Statements	26-36/37/39-45-37/39-22-28
RIDADR	UN 2859 6.1/PG 2
WGK Germany	3
RTECS	YW0875000
F	3
TSCA	TSCA listed
HazardClass	6.1
PackingGroup	II
HS Code	28419030
Hazardous Substances Data	7803-55-6(Hazardous Substances Data)
Toxicity	LD50 orally in rats: 0.16 g/kg (Smyth)

Ammonium metavanadate is an inorganic ammonium compound, and its aqueous solution presents weak acidity. The product features good water solubility; it is an economical raw material with mild chemical properties and excellent catalytic performance.

Related biological studies have been carried out to explore its effects on female reproductive function, with Swiss albino mice adopted as experimental subjects.

Regarding delivery schedule: In-stock products can be arranged for shipment within 2 to 3 working days. For newly manufactured orders, the production and delivery cycle takes 7 to 10 working days.