Silveronaluminaxmmpellets
Silver atomic absorption standard solution
CAS: 7440-22-4;15046-91-0
Molecular Formula: Ag
Silveronaluminaxmmpellets - Names and Identifiers
Silveronaluminaxmmpellets - Physico-chemical Properties
| Molecular Formula | Ag |
| Molar Mass | 107.87 |
| Density | 1.135g/mLat 25°C |
| Melting Point | 960°C(lit.) |
| Boling Point | 2212°C(lit.) |
| Flash Point | 232°F |
| Water Solubility | insoluble |
| Solubility | H2O: soluble |
| Vapor Presure | 0.05 ( 20 °C) |
| Vapor Density | 5.8 (vs air) |
| Appearance | Powder |
| Specific Gravity | 10.49 |
| Color | Yellow |
| Odor | Odorless |
| Exposure Limit | TLV-TWA (metal dusts and fumes) 0.1mg/m3 (ACGIH), 0.01 mg/m3 (MSHA andOSHA), soluble compounds 0.01 mg/m3(AIGIH). |
| Merck | 13,8577 |
| Storage Condition | 2-8°C |
| Stability | Stable. Substances to be avoided include strong acids and strong bases, tartaric acid, oxalic acid. Blackened by contact with ozone, hydrogen sulfide, sulfur. Powder is highly flammable. |
| Sensitive | Light Sensitive |
| Refractive Index | n20/D 1.333 |
| MDL | MFCD00003397 |
| Physical and Chemical Properties | White luster metal (face-centered cubic crystal), ductility is second only to gold. Melting point 961.93 °c. Boiling point 2212 °c. Relative density d2010.5. Soluble in nitric acid, hot sulfuric acid, soluble in molten alkali metal hydroxide, alkali metal peroxide, alkali metal cyanide. Hydrochloric acid can corrode the surface, most of the acid is not active, do not dissolve in cold water and hot water. Silver is a good conductor of heat and electricity and is not eroded by water and atmospheric oxygen. It turns black when exposed to ozone, hydrogen sulfide and sulfur. Most silver salts are sensitive to light. |
| Use | Used as electroplating and production of precision alloy, solder and other raw materials |
Silveronaluminaxmmpellets - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R38 - Irritating to the skin R20/21 - Harmful by inhalation and in contact with skin. R10 - Flammable R40 - Limited evidence of a carcinogenic effect R34 - Causes burns R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. R67 - Vapors may cause drowsiness and dizziness R36 - Irritating to the eyes R11 - Highly Flammable R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R36/38 - Irritating to eyes and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S24/25 - Avoid contact with skin and eyes. S25 - Avoid contact with eyes. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S23 - Do not breathe vapour. S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 3264 8/PG 3 |
| WGK Germany | 3 |
| RTECS | VW3500000 |
| FLUKA BRAND F CODES | 8 |
| TSCA | Yes |
| HS Code | 71069110 |
| Hazard Class | 6.1 |
| Packing Group | III |
| Toxicity | PEL (OSHA) 0.01 mg/m3 TLV-TWA (ACGIH) 0.1 mg/m3 (silver metal) TLV-TWA (ACGIH) 0.01 mg/m3 (soluble silver compounds, as Ag) |
Silveronaluminaxmmpellets - Upstream Downstream Industry
| Downstream Products | Silver nitrate Formaldehyde Silver oxide Silver nitrate Silver sulfate Silver(I)Chloride Silver carbonate |
Silveronaluminaxmmpellets - Nature
Open Data Verified Data
white metal powder. Melting Point: 960.5 °c; Boiling Point: About 2000 °c; dls 10. 49.
Last Update：2025-06-10 22:55:16
Silveronaluminaxmmpellets - Preparation Method
Open Data Verified Data
metal silver was used as a raw material and dissolved in nitric acid, and then added to an electrolytic cell for electrolysis. High purity silver powder was obtained after electrolytic refining.
Last Update：2025-06-10 22:55:16
Silveronaluminaxmmpellets - Introduction
The ultrafine silver powder is spherical monodisperse, micron-sized, and narrow in distribution. The silver paste prepared with it has good wettability, good printability, and excellent sintering film formation. Silver is the metal with the worst corrosion resistance among precious metals. In humid air, it is easily corroded by sulfur and sulfide to form silver sulfide. Soluble in hydrochloric acid, sulfuric acid, nitric acid, and aqua regia when heated. Silver reacts with mercury to form amalgam alloy, which is used to fill teeth.
Last Update：2022-10-16 17:28:19
Silveronaluminaxmmpellets - Application
Open Data Verified Data
used in the electronics industry, can be used to prepare the high temperature sintering conductive paste, conductive coatings and so on.
Last Update：2025-08-19 16:24:40
Silveronaluminaxmmpellets - Safety
Open Data Verified Data
should be stored in a cool, dry, ventilated, light-protected warehouse, not with strong acid, flammable materials storage and mixed transport. In the process of transport to prevent rain, sun exposure.
Last Update：2025-06-10 22:55:16
Silveronaluminaxmmpellets - Reference Information
| resistivity | 1-3*10 ^-5 ↑-cm (conductive paste) &_& 1.59 ↑Ω-cm, 20°C |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | silver has an atomic number of 47 and is a silver-white noble metal. Silver in nature is very small in the Free State of the existence of a single substance, mainly in the presence of silver compounds ore. Silver chemical stability, low activity, expensive, thermal conductivity, conductivity is very good, not susceptible to chemical corrosion, soft, rich ductility. |
| properties | silver has good electrical and thermal conductivity, and has the best reflectivity for white light. Silver in dry air or oxygen does not oxidation reaction, but in sulfur-containing moist air, the surface will be black, strong resistance to alkaline substances, but very easy to nitric acid (HNO3) and concentrated sulfuric acid (H2SO4) was dissolved. Silver in nature is often mixed with sulfides or with sulfides of other metals (lead, zinc, copper). |
| distribution | silver reserves are larger. Although the reserves of silver in China is small, but the mineral quality is excellent, the origin is mainly in Hunan, Yunnan, Guizhou, Sichuan area. |
| Application | in industrial alloys of silver, a large class of silver-based brazing alloys, it is widely used in all kinds of steel, stainless steel, non-ferrous metal welding; Special ingredients of silver-based solder can also be used for welding tungsten, carbide, Diamond, ceramic, carbon and glass. |
| Applications | for electronic industry materials. It can also be used in the preparation of highly pure silver salts and as a highly pure analytical reagent. used as hot hydrogen generator, Gel propellant, combustion activator, Catalyst, water cleaning adsorbent, sintering activator, etc. used for elemental analysis of organic compounds used for filter, ceramic tube capacitor, carbon film potentiometer, solid tantalum capacitor, composite transistor, conductive Fever components, etc. used as raw materials for electroplating and making precision alloy, solder, etc. used for electroplating and making precision alloy, solder and other raw materials microanalysis; Manufacture of silver salts and alloys; Catalyst; Reducing agent silver powder can be used as conductive materials in microelectronic thick films. For example, an electrode that can be matched with an Al2O3, zirconia and borosilicate glass matrix is manufactured by matching with glass, and an epoxy resin, modified phenolic resin or acrylic resin is matched to manufacture a low-temperature silver paste that can be printed and can be coated. |
| production method | the industrial production adopts electrolysis method, that is, the metal silver is used as the raw material, dissolved in nitric acid, and the electrolyte composition is: containing Ag50 g/L,HNO33 ~ 10g/L, adding electrolytic cell for electrolysis. The electrolyte temperature was about 45 ° C., the cell voltage was 2.5V, and the cathode current density was 2.5~2.7 A/cm2. After electrolytic refining, high-purity silver powder was obtained. |
| category | toxic substances |
| toxicity grade | low toxicity |
| Acute toxicity | oral-mouse LD: > 10000 mg/kg |
| flammability hazard characteristics | non-combustible |
| storage and transportation characteristics | warehouse low temperature, ventilation, dry |
| extinguishing agent | water, carbon dioxide, foam, dry powder |
| Occupational Standard | TWA 0.01 mg/m3; Tel 0.03 mg/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
| immediate life-threatening and health concentration | 10 mg Ag/m3 |
Last Update：2024-04-09 21:21:28
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Mobile: +86-17551318830
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Product Name: Superfine Silver powder Visit Supplier Webpage Request for quotationCAS: 7440-22-4
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CAS: 7440-22-4
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info@tnjchem.com
Mobile: 0086 189 4982 3763
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CAS: 7440-22-4
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