Molecular Formula | ClKPt |
Molar Mass | 269.63 |
Density | 3.499 |
Melting Point | 250°C (dec.)(lit.) |
Water Solubility | 50 g/L (95 ºC) |
Solubility | 50g/l |
Vapor Presure | 0Pa at 20℃ |
Appearance | Yellow liquid |
Specific Gravity | 3.5 |
Color | Yellow-Orange |
Exposure Limit | ACGIH: TWA 0.002 mg/m3NIOSH: IDLH 4 mg/m3; TWA 0.002 mg/m3 |
Solubility Product Constant(Ksp) | pKsp: 5.13 |
Merck | 14,7636 |
Storage Condition | Inert atmosphere,Room Temperature |
Stability | Stable. Incompatible with acids, interhalogen compounds, strong oxidizing agents. |
Sensitive | Hygroscopic |
Refractive Index | ^=1.825 |
MDL | MFCD00011389 |
Use | Used as analytical reagents and catalysts |
Hazard Symbols | T - Toxic |
Risk Codes | R25 - Toxic if swallowed R41 - Risk of serious damage to eyes R42/43 - May cause sensitization by inhalation and skin contact. |
Safety Description | S22 - Do not breathe dust. 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.) |
UN IDs | UN 3290 6.1/PG 2 |
WGK Germany | 1 |
RTECS | TP1650000 |
TSCA | Yes |
HS Code | 2843 90 90 |
Hazard Class | 6.1 |
Toxicity | LD50 orally in Rabbit: 195 mg/kg |
Reference Show more | 1. [IF=7.46] Jiawen Li et al."Dual mode competitive electrochemical immunoassay for dibutyl phthalate detection based on PEI functionalized nitrogen doped graphene-CoSe2/gold nanowires and thionine-Au@Pt core-shell."Sensor Actuat B-Chem. 2021 Mar;331:129401 |
CN 201210297308
application date:
August 21, 2012
Public/Announcement Number:
CN 102774894 A
applicant (patent):
Tianjin wind ship chemical reagent Technology Co., Ltd.
inventor:
National and provincial code:
Tianjin; 12
cited:
Abstract:
The invention relates to a combined preparation method of potassium chloroplatinate and potassium chloroplatinate. The steps are as follows: using metal platinum as a raw material, dissolving with aqua regia completely, adding hydrochloric acid to drive out nitrogen compounds, the chloroplatinic acid solution was obtained, and the chloroplatinic acid solution was neutralized with potassium hydroxide solution to pH 5.5-7.5. Potassium chloroplatinite was separated and crystallized by adding potassium oxalate, and hydrogen peroxide was added to the remaining mother liquor to obtain potassium chloroplatinate. The invention can be used to prepare two kinds of products by one feeding, the process is simple, the process is short, the mother liquid containing platinum is not produced, the utilization rate of platinum is high, and the product quality is good. The potassium chloroplatinate and potassium chloroplatinate prepared by the present invention are mainly used for catalyst manufacturing, chemical analysis, and preparation of platinum-containing complexes and platinum-containing organometallic compounds, and are widely used in military industry, electronics, pharmaceutical and other industries.
sovereignty:
1. A method for the combined preparation of potassium chloroplatinate and potassium chloroplatinate, characterized in that: the steps are as follows: (1) preparing chloroplatinic acid solution: adding metal platinum in a container, use aqua regia to dissolve it completely under heating conditions, and then add hydrochloric acid several times to drive out the remaining nitric acid and nitrogen compounds, the amount of hydrochloric acid is 1 to 2 times the amount of aqua regia, 3~5 times to add, and finally the solution is concentrated to about 1000 grams of platinum per liter, chloroplatinic acid solution; (2) preparation of chloroplatinic Acid Potassium: chloroplatinic acid solution diluted 4~6 times with pure water, potassium hydroxide solution with a mass concentration of 15%-25% is added dropwise under stirring, and the pH value of the neutralized chloroplatinic acid solution is 5.5-7.5. Then add metal platinum weight 0.9~1.1 times of potassium oxalate, heated and boiled for 15~30 minutes, add 100~200 ml of hydrochloric acid, while hot filtration, filtrate natural cooling, precipitation of red needle-like crystals, the crystals are separated and washed with 95% ethanol, and the potassium chloroplatinate product is dried below 75 ℃, The mother liquor and washing solution are combined to prepare potassium chloroplatinate; (3) preparation of potassium chloroplatinate: 1.5 hydrogen peroxide 30% to 3 times the amount of metal platinum is slowly added to the mother liquor obtained by preparing potassium chloroplatinate, slowly heated to boiling with stirring, and boiled for 20-30 minutes to cool, yellow crystals were precipitated, and the crystals were separated and washed with 95% ethanol and dried below 90 ° C. To obtain the finished potassium chloroplatinate product.
CN200910070546.3
application date:
2009-09-23
Public/Announcement Number:
CN102020322A
applicant (patent):
Tianjin Institute of Chemical reagents
inventor:
National and provincial code:
Tianjin
Abstract:
The invention relates to the field of preparation methods of inorganic compounds, in particular to a preparation method of spectral pure potassium chloroplatinate, characterized in that the metal platinum reacts with a mixed solution of hydrochloric acid and nitric acid to remove nitrogen dioxide, then hydrochloric acid and hydrogen peroxide were added, and the purified potassium chloride was reacted with the re-crystallized potassium chloride to obtain the spectral pure potassium chloroplatinate. The invention has advanced technology, high production efficiency, high purity of potassium chloroplatinate and low impurity content, so that the product can be widely used in the market.
sovereignty:
A method for preparing spectral pure potassium chloroplatinate, characterized by Comprising:(1) reacting metal platinum with a mixed solution of hydrochloric acid and nitric acid: placing metal platinum in a glass beaker, add hydrochloric acid and nitric acid mixture, hydrochloric acid and nitric acid volume ratio of 3: 1, heating 180~185 ℃, after the metal platinum complete reaction, to obtain solution A;(2), nitrogen dioxide removal: add hydrochloric acid to solution A, Heating 160~165 ° C, until solution A no color gas generation, stop adding hydrochloric acid, stop heating, get solution B;(3), purified potassium chloride: Potassium chloride is dissolved in a glass beaker of distilled water, the weight ratio of potassium chloride to distilled water is 1: 2, heated at 80~85 ° C, dissolved, filtered, Concentrate to 19~20 ° Be at 180~185 ℃, cool, crystallize, spin dry, dissolve the potassium chloride crystals in distilled water, heat at 75~80 ℃, to obtain solution C;(4), synthesis of spectral pure potassium chloroplatinate: hydrochloric acid and hydrogen peroxide are added to solution B, the volume fraction ratio of hydrochloric acid and hydrogen peroxide is 2: 1, heating, the temperature is 55~65 ℃, the solution C is heated, the temperature is 60~70 ℃, while stirring the solution C slowly poured into solution B, until no yellow precipitate, it is washed with water for 2-4 times, pumped with Buchner funnel, dried with anhydrous ethanol, and put in oven 80 ℃ to dry, then spectrum pure potassium chloroplatinate is obtained.
CN201510603168.6
applicant (patent):
Wuxi Qingyang Machinery Manufacturing Co., Ltd.
inventor:
Abstract:
The invention discloses a platinum electroplating solution of potassium hexachloroplatinate and an electroplating method thereof. Wherein, the plating solution comprises 0.6-1g/L hexachloroplatinic acid potassium in terms of platinum, 100-140g/L water-soluble phosphate in terms of phosphate, 4-8mg/L decahexyltrimethylammonium chloride, the pH of the plating solution may be 1 to 2 in the amount of hydrochloric acid. In the present invention, potassium hexachloroplatinate is used as the main platinum salt, phosphate is used as the brightener salt, decapyltrimethyl ammonium chloride is used as the additive, and hydrochloric acid is used to adjust the pH of the plating solution to be acidic, thus, the obtained plating solution has good dispersion force and deep plating ability, high cathode current efficiency and excellent Bath performance. The coating obtained by electroplating in alkaline bath has low porosity, high brightness and good quality.
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
properties | potassium chloroplatinate is orange-yellow crystal or powder, slightly soluble in water, insoluble in ethanol and ether, and its solubility in 100g of water is 0.90g(10 ℃),1.12g(20 ℃),2.16g(50 ℃) and 3.79g(80 ℃). When burned, it will be transformed into metallic platinum, and it will also react with magnesium and mercury to form metallic platinum. It is often used in industry to prepare potassium chloroplatinate. |
Preparation | Potassium chloroplatinate (K2PtCl6) is prepared by reacting chloroplatinic acid (H2PtCl6 · 6H2O) with potassium chloride. the preparation method of spectral pure potassium chloroplatinate is as follows: 1. reaction of metal platinum with mixed solution of hydrochloric acid and nitric acid: put 12g of metal platinum into a glass beaker, add 300mL of mixed solution of hydrochloric acid and 100mL of nitric acid, heat at 180 ℃, and completely react with metal platinum to obtain solution a; 2. remove nitrogen dioxide: add 1000mL of hydrochloric acid to solution a, heating at 165 ℃, I .e. until no colored gas is generated in solution a, stop heating to obtain solution B; 3. purify potassium chloride: dissolve 500g of potassium chloride in a glass beaker of 1000mL distilled water, heat at 80 ℃ to dissolve, filter, concentrate at 180 ℃ to 20 Be, cool, crystallize, spin dry, crystallize dry, and dissolve dried potassium chloride in 500mL distilled water, heating at 75 ℃ to obtain solution c; 4. synthesis spectrum pure potassium chloroplatinate: add hydrochloric acid and hydrogen peroxide to solution B, heat at 55 ℃, heat solution c at 65 ℃, slowly pour solution c into solution B while stirring, until there is no yellow precipitation, wash with water twice, pump with Brinell funnel, and drain with anhydrous ethanol, put it in the oven and bake it at 80 ℃ to obtain spectral pure potassium chloroplatinate. |
Use | Used as analytical reagent and catalyst Preparation of precious metal catalysts and precious metal coating. |