Name | lanthanum nitrate hydrate |
Synonyms | LANTHANUM NITRATE HYDRATE lanthanum nitrate hydrate LANTHANUM NITRATE HYDRATED LANTHANUM NITRATE, N-HYDRATE LanthanuM(Ⅲ) nitrate hydrate lanthanum(iii) nitrate hydrate |
CAS | 100587-94-8 |
EINECS | 683-072-1 |
InChI | InChI=1/La.HNO3.H2O/c;2-1(3)4;/h;(H,2,3,4);1H2 |
Molecular Formula | H2LaN3O10 |
Molar Mass | 342.94 |
Melting Point | 40°C |
Boling Point | 126°C |
Water Solubility | Soluble in water. |
Appearance | Liquid |
Color | Clear colorless |
Physical and Chemical Properties | Lanthanum nitrate, chemical formula La(NO3)3. 6H2O. Molecular weight 433.02. White triclinic crystals. Deliquescence. Melting point 40 °c. Very soluble in water and ethanol, soluble in acetone. Decomposition by heating to 126 ° C. Results in the formation of a basic salt and then an oxide. Heat to 800 ° C. Completely decomposed into lanthanum oxide. Cu[La(NO3)5], Mg[La(NO3)5], and the like are likely to form a crystalline double salt with copper nitrate or magnesium nitrate. After co-mixing and evaporating with the solution of ammonium nitrate, that is, a large colorless crystalline hydrated double salt (NH4)2[La(NO3)5]· 4H2O is formed, the latter can lose all of the water of crystallization when heated at 100 °c. And hydrogen peroxide, that is, over lanthanum oxide (La2O5) powder generated. Preparation Method: by lanthanum oxide or lanthanum hydroxide dissolved in dilute nitric acid solution, after water bath evaporation and crystallization. Purposes: for the preparation of preservatives, gas shade, chemical reagents. |
Use | For the production of xenon lamp gauze cover and optical glass |
Risk Codes | R8 - Contact with combustible material may cause fire R36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S17 - Keep away from combustible material. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
UN IDs | UN 1477 5.1/PG 2 |
WGK Germany | 3 |
RTECS | OE5075000 |
TSCA | Yes |
HS Code | 28469091 |
Hazard Class | 5.1 |
white powder Crystal, hygroscopic, melting point of about 40 deg C, boiling point of 126 deg C. Soluble in water and alcohol, heated to above the melting point to form a basic salt.
enrichment method: using rare earth chloride or rare earth ammonium sulfate double salt as raw material, after extracting part of cerium, lanthanum is relatively enriched. The rare earth ammonium sulfate double salt is dissolved with sodium hydroxide, the antimony is oxidized by air, leached with dilute nitric acid, and the cerium-rich slag is separated. The solution is lanthanum-rich mother liquor, which is extracted and separated, and then crystallized to obtain enriched lanthanum nitrate.
used in the production of optical glass, xenon lamp, phosphor and preservatives. Ceramic Capacitor additives, petroleum refining catalysts.
double-layer polyethylene plastic bag sealed packaging, jacket iron drum. 50kg net weight per barrel. Should be stored in a ventilated, dry warehouse. This product is easy to absorb moisture, storage and transportation should prevent package breakage, keep dry. Class I inorganic oxidant, Hazard code number; GB 5.1 class 51523. UN NO. 1477: IMDG code 5.1, Class 2. For the remainder, see cerium oxide products.