氯酸金
tetrachloroauric acid
CAS: 16903-35-8
Molecular Formula: AuCl4H
氯酸金 - Names and Identifiers
| Name | tetrachloroauric acid |
| Synonyms | auricacid tetrachloroauric Chloroauric Acid tetrachloroauric acid TETRACHLOROAURIC ACID GOLD TRICHLORIDE ACID BROWN gold(+3) cation tetrachloride |
| CAS | 16903-35-8 |
| EINECS | 240-948-4 |
| InChI | InChI=1/Au.4ClH/h;4*1H/q+1;;;;/p-3 |
| InChIKey | FAGGMVVGLLFOQV-UHFFFAOYSA-J |
氯酸金 - Physico-chemical Properties
| Molecular Formula | AuCl4H |
| Molar Mass | 339.79 |
| Density | 3.9g/mLat 25°C |
| Melting Point | 30°C |
| Boling Point | 100 °C |
| Water Solubility | Miscible with water, alcohol, ester, ether and ketone. |
| Solubility | H2O: soluble |
| Appearance | Liquid |
| Color | yellow |
| Exposure Limit | ACGIH: Ceiling 2 ppmOSHA: Ceiling 5 ppm(7 mg/m3)NIOSH: IDLH 50 ppm; Ceiling 5 ppm(7 mg/m3) |
| Merck | 13,4537 |
| Storage Condition | 2-8°C |
| Stability | Stable. Hygroscopic. Light sensitive. Incompatible with strong bases, sulfides, cyanides, carbonates. |
| Sensitive | Light Sensitive |
| MDL | MFCD00011322 |
| Use | Stable nanoscale and underivatized colloidal gold particles for the preparation of solution form |
氯酸金 - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R43 - May cause sensitization by skin contact R34 - Causes burns R36/38 - Irritating to eyes and skin. R23 - Toxic by inhalation |
| 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.) S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 3260 8/PG 3 |
| WGK Germany | 3 |
| RTECS | CK6330000 |
| FLUKA BRAND F CODES | 3-8-10 |
| TSCA | Yes |
| Hazard Class | 8 |
| Packing Group | III |
氯酸金 - Reference
| Reference Show more | 1. Li, Xiangyu, et al. "Folate receptor-targeting mesoporous silica-coated gold nanorod nanoparticles for the synergistic photothermal therapy and chemotherapy of rheumatoid arthritis." RSC Advances 11.6 (2021): 3567-3574.https://doi.org/10.1039/D0RA08689D 2. [IF=3.361] Xiangyu Li et al."Folate receptor-targeting mesoporous silica-coated gold nanorod nanoparticles for the synergistic photothermal therapy and chemotherapy of rheumatoid arthritis."Rsc Adv. 2021 Jan;11(6):3567-3574 3. [IF=6.953] Lingyuan Chen et al.A novel benzothiazole modified chitosan with excellent adsorption capacity for Au(III) in aqueous solutions.Int J Biol Macromol. 2021 Nov;: 4. [IF=7.312] Xi Zhang et al."Bacterial cellulose hybrid membrane grafted with high ratio of adipic dihydrazide for highly efficient and selective recovery of gold from e-waste."Sep Purif Technol. 2022 Jul;292:121021 |
氯酸金 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| chloroauric acid | chloroauric acid is also called "gold chloride" and "gold chloride tetrahydrate". Chemical formula HAuCl4 · 4H2O. Molecular weight 411.85. Yellow needle crystals. Poisonous! It's corrosive. Soluble in water, soluble in ethanol, ether, slightly soluble in chloroform. Anhydrous chloroauric acid can be crystallized from ethanol solution. Decomposition by heat. Exposure produces black spots, which decompose into gold trichloride when heated to 120 ℃. Reacting with KI in alkaline solution can precipitate brown gold. When tin dichloride is encountered in an acidic solution, "cinnamon purple" is formed ". Use methyl orange to make the aqueous solution purple, drop 1 to 3 drops of hydrochloric acid to make it turn green, and then turn into lavender when encountering gold salt solution; add cold potassium hydroxide solution to generate gold hydroxide precipitate, and pass sulfur dioxide It is reduced to gold powder. Preparation method: Dissolve pure gold in aqua regia (or hydrochloric acid saturated with chlorine) and obtain it by distillation and crystallization. uses: chloroauric acid is mainly used for microanalysis, alkaloid determination, electroplating gold and photography, gold powder, porcelain coloring, red glass manufacturing, special ink and drugs for tuberculosis treatment, and can also be used as analytical reagents, rubidium (Rb), cesium (Cs) trace analysis. |
| use | can be used for partial gold plating of semiconductor and integrated circuit lead frames, printed circuit boards and electronic connectors mainly used for gold plating, special inks, drugs, porcelain gold and red glass, etc., as well as raw materials for making various gold compounds, photography industry and chemical reagents. Used to prepare stable nano-scale and underivatized colloidal gold particles in solution form |
| production method | pure gold foil (high standard) is added to the mixture (chemical pure product) of nitric acid (relative density 1.40): distilled water: hydrochloric acid (relative density 1.19)= 1:5:5(V) to dissolve it, and the dissolved solution is evaporated to a thick shape to feel excess nitric acid, add a small amount of hydrochloric acid to evaporate again, repeat 3-4 times, and slowly pass chlorine into the liquid during the last evaporation. The resulting mixture is cooled under constant stirring, and the prepared powder is dried to be the reagent crystalline chloroauric acid. |
Last Update：2024-04-10 22:29:15
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View History
氯酸金
三元乙丙防水卷材
(E)-2-Butenedioic acid hydrogen 1-(2-hydroxyethyl) ester
氨基吡嗪杂质
柠檬酸单水合物
3-[((2R)-1-METHYLPYRROLIDIN-2-YL)METHYL]-5-[(E)-2-(PHENYLSULFONYL)VINYL]INDOLE
TRIETHYLENE GLYCOL extrapure AR
Methylphosphonyl chlorofluoride
4-乙酰氧基联苯
2-Hydroxy-2-phenyl-3-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)propionic acid 3-quinuclidinyl ester
三元乙丙防水卷材
(E)-2-Butenedioic acid hydrogen 1-(2-hydroxyethyl) ester
氨基吡嗪杂质
柠檬酸单水合物
3-[((2R)-1-METHYLPYRROLIDIN-2-YL)METHYL]-5-[(E)-2-(PHENYLSULFONYL)VINYL]INDOLE
TRIETHYLENE GLYCOL extrapure AR
Methylphosphonyl chlorofluoride
4-乙酰氧基联苯
2-Hydroxy-2-phenyl-3-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)propionic acid 3-quinuclidinyl ester