AMMONIUM METAVANADATE extrapure AR
Ammonium metavanadate
CAS: 7803-55-6
Molecular Formula: H4NO3V
AMMONIUM METAVANADATE extrapure AR - Names and Identifiers
| Name | Ammonium metavanadate |
| Synonyms | NH4VO3 Ammonium Vanadate(V) Ammonium metavanadate ammonium trioxovanadate Vanadium solution 1000 ppm ammonium oxido(dioxo)vanadium AMMONIUM METAVANADATE ACS REAGENT AMMONIUM METAVANADATE extrapure AR AMMONIUM META-VANADATE R. G., REAG. PH.EUR. |
| CAS | 7803-55-6 |
| EINECS | 232-261-3 |
| InChI | InChI=1/H3N.3O.V/h1H3;;;;/q;;;-1;/p+1/rH3N.O3V/c;1-4(2)3/h1H3;/q;-1/p+1 |
AMMONIUM METAVANADATE extrapure AR - Physico-chemical Properties
| Molecular Formula | H4NO3V |
| Molar Mass | 116.98 |
| Density | 2.32 g/cm3 at 25 °C (lit.) |
| Melting Point | 200 °C |
| Water Solubility | 5.1 g/L (20 ºC) |
| Solubility | H2O: soluble |
| Appearance | Solid |
| Specific Gravity | 2.33 |
| Color | White to yellow |
| Odor | Odorless |
| Exposure Limit | NIOSH: Ceiling 0.05 mg/m3 |
| Merck | 14,568 |
| PH | 7 (5.1g/l, H2O, 20℃) |
| Storage Condition | Store at RT. |
| Stability | Stable. Incompatible with strong acids, strong oxidizing agents. Protect from moisture - hygroscopic. |
| Physical and Chemical Properties | Character white or slightly yellowish crystalline powder. melting point 200 ℃ relative density 2.326 solubility slightly soluble in cold water, hot ethanol and ether, soluble in hot water and dilute ammonium hydroxide. |
| Use | Used as a catalyst, drier, mordant, etc., can also be used to prepare vanadium pentoxide |
AMMONIUM METAVANADATE extrapure AR - Risk and Safety
| Risk Codes | R25 - Toxic if swallowed R26 - Very Toxic by inhalation R36/37/38 - Irritating to eyes, respiratory system and skin. R20 - Harmful by inhalation R34 - Causes burns R22 - Harmful if swallowed R36/37 - Irritating to eyes and respiratory system. R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S37/39 - Wear suitable gloves and eye/face protection S22 - Do not breathe dust. S28 - After contact with skin, wash immediately with plenty of soap-suds. |
| UN IDs | UN 2859 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | YW0875000 |
| FLUKA BRAND F CODES | 3 |
| TSCA | Yes |
| HS Code | 28419030 |
| Hazard Class | 6.1 |
| Packing Group | II |
| Toxicity | LD50 orally in rats: 0.16 g/kg (Smyth) |
AMMONIUM METAVANADATE extrapure AR - Upstream Downstream Industry
| Raw Materials | Oxalic acid Vanadium pentoxide Ammonium nitrate Ammonia |
| Downstream Products | Ammonium metavanadate Vanadium pentoxide |
AMMONIUM METAVANADATE extrapure AR - Nature
Open Data Verified Data
white or yellowish crystalline powder. Soluble in 165 water, more soluble in hot water, ammonia, insoluble in ethanol. Loss of water and ammonia by heating.
Last Update：2024-01-02 23:10:35
AMMONIUM METAVANADATE extrapure AR - Preparation Method
Open Data Verified Data
Industrial Ammonium vanadate was dissolved in a solution of water and ammonia water, and activated carbon was added while heating to 60 to 70 ° C., left for 30 minutes, and filtered. Ammonium nitrate was added to the filtrate and The Ammonium vanadate crystals were filtered off with suction, washed with water and then with a small amount of ethanol. In not more than 20~25 deg C drying, get pure ammonium metavanadate.
Last Update：2022-01-01 09:00:29
AMMONIUM METAVANADATE extrapure AR - Use
Open Data Verified Data
Analytical reagents. For the determination of copper, barium, chromium, phosphorus and used as catalysts, mordant. The ceramic industry is widely used as a glaze.
Last Update：2022-01-01 09:00:30
AMMONIUM METAVANADATE extrapure AR - Safety
Open Data Verified Data
non-flammable, toxic, and irritating. Rat oral LDso;0.16g/kg. Dust can irritate the eyes, skin and respiratory tract. Inhalation and oral administration can cause death. Inhalation caused Cough, chest pain. Damage to liver and kidney. Skin contact can cause urticaria. The staff should be protected, and if it is touched, it should be immediately rinsed with flowing water. It should be stored separately from reducing agent, easy (combustible) materials and edible chemicals, and mixed storage should not be avoided.
Last Update：2022-01-01 09:00:30
AMMONIUM METAVANADATE extrapure AR - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| solubility in water (g/100ml) | grams dissolved per 100ml of water at different temperatures (℃): 0.48g/20 ℃;0.84g/30 ℃;1.32g/40 ℃;2.42g/60 ℃ |
| toxicity | This product has a variety of effects on the body of the poison, can cause blood circulation, respiratory organs, nervous system, changes in metabolism and other aspects. People often suffer from conjunctivitis, nasal mucositis, bronchitis, occasionally suffering from gastritis. The patient presented with pale skin, blue-black tongue, Cough, Dyspnea, chest pain, bronchospasm, finger tremor and other symptoms. Precautions use respirators to protect the respiratory organs. In the production and application process, to prevent the generation and excretion of dust. There should be comprehensive ventilation equipment and masking equipment for local locations. The material should be sprayed wet during crushing. Regular physical examination. |
| Application | used as catalyst, drier, mordant, etc, can also be used for the preparation of vanadium pentoxide White mainly used as a chemical reagent, Catalyst, drier, mordant, etc. The ceramic industry is widely used as a glaze. It can also be used for the preparation of vanadium pentoxide. used as chromatographic analysis reagent, catalyst and mordant used as reagent, Catalyst, drying agent, mordant, etc. used as catalyst, drier, mordant, etc., can also be used to prepare vanadium pentoxide micro dyeing, determination of copper, barium, chromium and phosphorus. |
| production method | alkali hydrolysis method after roasting the mixture of ferrovanadium powder and charcoal powder in a certain proportion, sodium vanadate is produced by the reaction with liquid alkali, after concentrated, filtered, neutralized to pH 7.5~8 with hydrochloric acid, filtered, the filtrate was heated to 70~80 ℃, ammonium chloride solution was added under stirring, the precipitate was centrifuged, washed with water, after drying, ammonium metavanadate crystals were obtained. V2O5? xFe2O3 6NaOH→2Na3VO4 2Fe2O3 3H2ONa3VO4 2HCl→NaVO3 2NaCI H2ONaVO3 NH4Cl→NH4VO3 3NaCl 2NH4OH |
| category | toxic substances |
| toxicity grade | highly toxic |
| Acute toxicity | oral-rat LD50: 58.1 mg/kg; Intraperitoneal-mouse LD50: 49.9 mg/kg |
| flammability hazard characteristics | flammable; Toxic nitrogen oxides generated by heat, vanadium oxide and ammonia fumes |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored and transported separately from combustible materials, reducing agents and food |
| extinguishing agent | dry powder, foam, sand, carbon dioxide |
| Occupational Standard | TWA 0.05 mg (vanadium pentoxide)/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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