LITHIUM, AAS STANDARD SOLUTION
CAS: 7439-93-2
Molecular Formula: Li
LITHIUM, AAS STANDARD SOLUTION - Names and Identifiers
LITHIUM, AAS STANDARD SOLUTION - Physico-chemical Properties
| Molecular Formula | Li |
| Molar Mass | 6.94 |
| Density | 0.534 g/mL at 25 °C (lit.) |
| Melting Point | 180 °C (lit.) |
| Boling Point | 1342 °C (lit.) |
| Water Solubility | REACTS |
| Vapor Presure | 1 hPa (723 °C) |
| Appearance | wire |
| Specific Gravity | 0.534 |
| Color | Silvery |
| Odor | Odorless |
| Exposure Limit | ACGIH: TWA 2 ppm; STEL 4 ppmOSHA: TWA 2 ppm(5 mg/m3)NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3) |
| Merck | 13,5542 |
| Storage Condition | water-free area |
| Stability | Stability Stable, but reacts violently with water. Store under oil. |
| Sensitive | air sensitive, moisture sensitive |
| Physical and Chemical Properties | Silvery white soft metal. |
LITHIUM, AAS STANDARD SOLUTION - Risk and Safety
| Risk Codes | R36/38 - Irritating to eyes and skin. R34 - Causes burns R14/15 - R23 - Toxic by inhalation |
| Safety Description | S8 - Keep container dry. S43 - In case of fire use ... (there follows the type of fire-fighting equipment to be used.) S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S43C - S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 3264 8/PG 3 |
| WGK Germany | 2 |
| RTECS | OJ5540000 |
| FLUKA BRAND F CODES | 10 |
| TSCA | Yes |
| HS Code | 2805 19 90 |
| Hazard Class | 4.3 |
| Packing Group | I |
| Toxicity | An element used clinically as one of its salts. It is effective against both mania and depression. Despite its effectiveness, there are no clear mechanisms that have been directly related to its therapeutic effectiveness although its inhibition of the formation of inositol from inositol phosphate is thought to be important. At therapeutic concentrations, lithium causes almost no discernible psychotropic effects in healthy humans. The major complaints when the serum concentrations of the drug are carefully monitored include slight muscular weakness, thirst, and excessive urination. The major difficulty with lithium is that a fairly high concentration of the ion is needed in the blood (0.5_x0002_1.0 mmol/L) for maintenance, higher for acute mania. Toxic symptoms (which can involve many physiological symptoms) may occur, however, at doses of 1.5 mmol/L or higher. This low therapeutic index is indicative of the need for regular monitoring of lithium concentrations in the serum. |
LITHIUM, AAS STANDARD SOLUTION - Reference Information
| pH range of acid-base indicator discoloration | >12 |
| resistivity | 9.446 ***-CM, 20°C |
| LogP | -0.77 at 25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| toxicity | see lithium metal. lithium can irritate the skin and mucous membranes. Production personnel should wear work clothes, protective masks, latex gloves and other labor protection articles to protect the respiratory organs and skin. Production equipment should be sealed and the workshop should be well ventilated. |
| Application | is mainly used for the production of various lithium batteries, light lithium aluminum alloy, used as degassing agent for metallurgy for the manufacture of batteries, non-ferrous alloys and dating, etc. used as catalyst in chemical, pharmaceutical, non-ferrous alloy, synthetic rubber industry. Is the production of high-purity lithium raw materials. organic synthesis, pharmaceutical intermediates and other fields. used in the production of lithium batteries or pharmaceutical industry used as reducing agent and hydrogenation agent, alloy hardener, deoxidizer in copper and copper alloy, also used in organic synthesis mainly used in the production of various lithium batteries, light lithium aluminum alloy, synthetic rubber, pharmaceutical industry, etc. |
| production method | The electrolytic method uses Anhydrous Lithium chloride as a raw material, is added to an electrolytic tank, heated and melted, and then electrolyzed to obtain a finished metallic lithium product. The 2LiCl [electrolysis] → 2Li Cl2 ↑ vacuum distillation method uses metal lithium as raw material, and it is distilled at low temperature for a long time, and lithium containing more volatile impurities is precipitated on the cooling tube. After that, the device was cooled and filled with refined argon, and the cooling tube was replaced with a new one along with the cap of the mill. Then, a vacuum of <0.1-kPa was drawn and the formal distillation was carried out at a higher temperature than before. Finally, after the apparatus was sufficiently cooled, argon gas was filled, the mill cap was opened, and the metallic lithium purified from the cooling tube was scraped off with a spatula or the like, and this distillation operation was repeated to obtain a high-purity lithium product. The product is supplied in a cylindrical ingot with sound of 90 × 160, each ingot weighing about 500g. If the demander has other requirements, it shall be separately agreed by both the supplier and the supplier. |
| category | water burning articles |
| toxicity grade | poisoning |
| Acute toxicity | abdominal injection-mouse LD50: 1000 mg/kg |
| explosive hazard characteristics | explosion of hydrogen emitted by water and moist air |
| flammability hazard characteristics | when water or moist air emits hydrogen |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is not stored in hydrocarbons; It is mixed with oxidants, halogens, strong acid stored separately |
| extinguishing agent | dry powder, dry sand, dry powder |
| spontaneous combustion temperature | 179oC |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 21:21:28
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