Potassium chloroplatinate
Potassium chloroplatinate Basic information
- Product Name:
- Potassium chloroplatinate
- Synonyms:
-
- dipotassium,(oc-6-11)-platinate(2-hexachloro-
- dipotassiumhexachloroplatinate
- dipotassiumplatinumhexachloride
- hexachloro-,dipotassium,(OC-6-11)-Platinate(2-)
- hexachloro-platinate(2-dipotassium
- Platinate(2-),hexachloro-,dipotassium
- platinicpotassiumchloride
- potassiumplatinum(iv)hexachloride
- CAS:
- 16921-30-5
- MF:
- Cl6KPt-
- MW:
- 446.88
- EINECS:
- 240-979-3
- Product Categories:
-
- Materials Science
- Metal and Ceramic Science
- Inorganics
- halometallate salt
- Potassium Salts
- Salts
- chemical reaction,pharm,electronic,materials
- Mol File:
- 16921-30-5.mol
Potassium chloroplatinate Chemical Properties
- Melting point:
- 250 °C (dec.)(lit.)
- Density
- 3.499
- vapor pressure
- 0Pa at 20℃
- refractive index
- ^=1.825
- storage temp.
- Inert atmosphere,Room Temperature
- solubility
- 50g/l
- form
- Powder/Solid
- Specific Gravity
- 3.5
- color
- Yellow-Orange
- Water Solubility
- 50 g/L (95 ºC)
- Sensitive
- Hygroscopic
- Merck
- 14,7636
- Solubility Product Constant (Ksp)
- pKsp: 5.13
- Exposure limits
- ACGIH: TWA 0.002 mg/m3
NIOSH: IDLH 4 mg/m3; TWA 0.002 mg/m3 - Stability:
- Stable. Incompatible with acids, interhalogen compounds, strong oxidizing agents.
- CAS DataBase Reference
- 16921-30-5(CAS DataBase Reference)
- EPA Substance Registry System
- Platinate(2-), hexachloro-, dipotassium, (OC-6-11)- (16921-30-5)
Safety Information
- Hazard Codes
- T
- Risk Statements
- 25-41-42/43
- Safety Statements
- 22-26-36/37/39-45
- RIDADR
- UN 3290 6.1/PG 2
- WGK Germany
- 1
- RTECS
- TP1650000
- TSCA
- Yes
- HS Code
- 2843 90 90
- HazardClass
- 6.1
- Toxicity
- LD50 orally in Rabbit: 195 mg/kg
MSDS
- Language:English Provider:Potassium hexachloroplatinate(IV)
- Language:English Provider:SigmaAldrich
- Language:English Provider:ACROS
- Language:English Provider:ALFA
Potassium chloroplatinate Usage And Synthesis
Chemical Properties
Potassium chloroplatinate, also known as potassium hexachloroplatinate(IV), is an inorganic compound with the formula K2PtCl6. It is an orange to yellow crystalline solid that is insoluble in water. Potassium hexachloroplatinate(IV) is used for the determination of potassium by gravimetric analysis. It is also used to prepare potassium tetrchloroplatinate by reduction using hydrazine dihydrochloride. Further, it is used in photography.
Uses
Potassium chloroplatinate is a red colored crystal that is soluble in water but less soluble in alcohol. Potassium chloroplatinate is produced by a complicated treatment of the reducing of platinum chloride with sulfurous gas and adding potassium chloride. It was used primarily in the platinum printing process, but also for toning silver prints.
Preparation
It is formed by reaction of soluble potassium salt solution and chloroplatinic acid.
General Description
Potassium hexachloroplatinate (K2PtCl6) is a source material for the preparation of platinum based compounds. It can be used in the preparation of platinum colloids by its reduction in an aqueous solution.
Hazard
Toxic by ingestion and inhalation.
Flammability and Explosibility
Not classified
Safety Profile
Mutation data reported. Human systemic effects by intradermal route: dermatitis. When heated to decomposition it emits toxic fumes of K2O and Cl-. Used as a catalyst for carbonylation of alkynes. See also PLATINUM COMPOUNDS.
Purification Methods
It crystallises from water (20mL/g) between 100o and 0o. Its solubility in H2O is 0.7% at 0o, 1.12% at 20o, 2.16% at 50o and 5.13% at 100o. [Grube in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1571 1965.]
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