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Potassium chloroplatinate

Potassium chloroplatinate structure

CAS No:
16921-30-5
Formula:
Cl6KPt-
Chemical 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
Categories:
Analytical Chemistry > Analysis Reagents

Description

orange to yellow crystalline powder

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.

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 reductionin an aqueous solution.

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.

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.]

Potassium chloroplatinate Basic Attributes

Molecular Weight：

446.88

Exact Mass：

268.897369

EC Number：

240-979-3

TSCA：

TSCA listed

Color/Form：

Yellow-Orange

HScode：

2843 90 90

Characteristics

PSA：

XLogP3：

0.68700

Appearance：

Yellow-Orange Powder/Solid

Density：

3.499

Melting Point：

250 °C (dec.)(lit.)

Refractive Index：

^=1.825

Water Solubility：

50 g/L (95 ºC)

Storage Conditions：

Storage temperature: no restrictions.

Vapor Pressure：

0Pa at 20℃

Toxicity：

LD50 orally in Rabbit: 195 mg/kg

Flammability characteristics：

Not classified

Critical Temperature & Pressure：

Inert atmosphere,Room Temperature

Safety Information

Packing level：

I; II; III

Hazard category：

6.1

Transport codes：

UN 3290 6.1/PG 2

wgk germany：

hazard class code：

safety instructions：

22-26-36/37/39-45

RTECS Number：

TP1650000

Marks：

Stability/Shelf Life：

Stable. Incompatible with acids, interhalogen compounds, strong oxidizing agents.

Precautionary statement(s)：

P261-P280-P301 + P310-P305 + P351 + P338-P342 + P311

Hazard Statements：

Toxic by ingestion and inhalation.

RIDADR：

UN 3290 6.1/PG 2

GHS Classification：

|Danger|H301: Toxic if swallowed [Danger Acute toxicity, oral]|P261, P264, P270, P272, P280, P285, P301+P310, P302+P352, P304+P341, P305+P351+P338, P310, P321, P330, P333+P313, P342+P311, P363, P405, and P501|H300 (58.78%): Fatal if swallowed [Danger Acute toxicity, oral]|P261, P264, P270, P272, P273, P280, P285, P301+P310, P302+P352, P304+P341, P305+P351+P338, P310, P321, P330, P333+P313, P342+P311, P363, P391, P405, and P501|Aggregated GHS information provided by 149 companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Toxicity

Human Exposure：

ACGIH: TWA 0.002 mg/m3NIOSH: IDLH 4 mg/m3; TWA 0.002 mg/m3

Potassium chloroplatinate Use and Manufacturing

Uses

In photography.

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.

Manufacturing Info：

Platinate(2-), hexachloro-, potassium (1:2), (OC-6-11)-: ACTIVE

Computed Properties

Molecular Weight:486.0
Hydrogen Bond Acceptor Count:1
Exact Mass:484.702373
Monoisotopic Mass:482.705323
Heavy Atom Count:9
Complexity:62.7
Covalently-Bonded Unit Count:3
Compound Is Canonicalized:Yes

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Potassium hex achloroplatinate(IV)

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Guide of Potassium chloroplatinate

Description
Basic Attributes
Characteristics
Safety Information
Toxicity
Use and Manufacturing
Computed Properties
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