Platinum

195.084

About Platinum

Pre-columbian natives of the Americas have produced items made from gold-platinum alloys for 2,000 years, but Spanish explorers first brought platinum to Europe in the 18th century in the form they called platina, the native form of the metal found in South America. The name was derived from plata, the Spanish word for silver metal, and was eventually used in the official name of the element. Antonio de Ulloa is credited with the discovery of platina in 1735, but was primarily an explorer and had little to do with investigation of the metal after submitting a report that included descriptions of the metal in 1746. Instead, a range of chemists across Europe experimented with the newly discovered metal.

18th century chemists recognized the potential value of the hard and corrosion-resistant metal but struggled to produce malleable platinum from the ore. In 1751, Swedish scientist Henrik Scheffer discovered that grains of the platinum ore could be fused into malleable platinum by heating them in the presence of arsenic, and subsequent refinement of this process enabled the production of the first European products made from the metal. Over the next fifty years, a variety of processes were developed to produce malleable platinum metal from ore, but all of them suffered from some inconsistencies in the final material produced and required laborious or costly steps, limiting the production of the metal. During this period, platinum was used primarily for the production of ornamental pieces and laboratory ware.

In 1802, English chemists Smithson Tennant and William Hyde Wollaston worked together to come up with a more efficient way to produce workable platinum. In the process, they discovered what had been hindering platinum purification all along: platinum ore actually contained trace amounts of several other elements previously unknown to science, and varying amounts of contamination with these elements remaining after extraction of the metal from the ore led to variations in the properties of the “platinum” produced. This new understanding facilitated the development of more reliable and efficient methods for processing platinum ore, which was followed by a boom in availability and use of the metal.

In 1817, Humphry Davy, a chemist who was interested in producing a lamp that could be safely used in coal mines, stumbled upon the phenomenon of heterogeneous catalytic oxidation: the coal gas he tested would burn without a flame and at a lower than usual temperature only when it came in contact with platinum or palladium metal wire. Having solved his problem, Davy then moved on to other pursuits, but other chemists were fascinated, and soon many reactions where platinum could serve as a catalyst were discovered. By the beginning of the 20th century, platinum catalysts were widely used in the industrial production of sulfuric and nitric acid.

Today, platinum catalysts are essential for catalytic converters, which reduce toxic emissions by automobiles, for petroleum processing, and for a wide range of organic synthesis applications. The 2007 Nobel Prize in Chemistry was awarded to Gerhard Ertl for the research on catalytic oxidation of carbon monoxide, the chemistry that underlies the function of catalytic converters. Additionally, two other Chemistry Nobel Prize winners investigated platinum catalysts in their research, though each was ultimately awarded the prize for processes that used other metals as catalysts. Paul Sabatier’s award in 1912 recognized him for his work on hydrogenation reactions for which he ultimately found nickel metal to be more effective than platinum. The first successful production of ammonia from gaseous nitrogen was performed in 1881 using a platinum catalyst, and Fritz Haber’s research into improving this process ultimately resulted in the Haber process for which he won the 1918 Nobel Prize. Haber’s final process as used in industry used iron-based catalysts rather than platinum group metals, but his research would not have been possible without prior work using platinum.

While researchers investigated the chemical properties of platinum in the 19th century, the metal was also growing in popularity for use in jewelry manufacturing. Platinum is in some ways a better metal for jewelry than either silver or gold, as it is harder than either and does not tarnish like silver. Once several prominent jewelers started using the metal in the late 1800’s, platinum rose rapidly in popularity, becoming particularly fashionable for the setting of colorless stones. This continued until 1940, when platinum use was restricted to industrial production of chemicals needed in the war effort. Platinum was replaced by white gold due to these restrictions, but has returned to popularity in recent years.

Platinum and platinum alloys are used in a wide range of settings where chemical inertness or wear resistance are important, including medical devices, laboratory instruments, electrical contacts, spark plugs, and turbine engines. A platinum-iridium alloy was also used to produce the international prototype kilogram and meter in the late 19th century; of the two only the kilogram remains in official use. Finally, organometallic platinum complexes have been investigated for use in cancer treatment.

Like other platinum group metals, platinum is most often obtained for commercial use as a byproduct from nickel and copper mining and processing, but can also be obtained from rare platinum-rich ores and alluvial deposits of native platinum.

Products

Compounds

Metallic Forms

Alloys

Oxide Forms

Organometallics

Nanomaterials

Semiconductor & Optical

Sputtering Targets

Isotopes

Platinum is used in laboratory and dentistry equipment, jewelry, electrical contacts and electrodes, and catalytic converters. It is highly corrosion resistant- the metal does not oxidize in air at any temperature. Organoplatinum compounds have been used as pharmaceutical treatments for certain cancers. Platinum is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity). Elemental or metallic forms include platinum pellets, rod, wire and granules for evaporation source material purposes. Platinum nanoparticles and nanopowders are also available. Platinum oxide is available in powder and dense pellet form for such uses as optical coating and thin film applications. Oxides tend to be insoluble. Platinum fluoride is another insoluble form for uses in which oxygen is undesirable such as metallurgy, chemical and physical vapor deposition and in some optical coatings. Platinum is also available in soluble forms including chlorides, nitrates and acetates. These compounds can be manufactured as solutions at specified stoichiometries.

Platinum Properties

Platinum is a Block D, Group 10, Period 6 element. The number of electrons in each of platinum's shells is 2, 8, 18, 32, 17, 1 and its electron configuration is [Xe] 4f¹⁴ 5d⁹ 6s¹. The platinum atom has a radius of 137.3.pm and its Van der Waals radius is 175.pm. Platinum Bohr Model Elemental Platinum In its elemental form, CAS 7440-06-4, platinum has a grayish white appearance. Platinum is a member of the platinum group of metals and the group 10 of the periodic table. It is generally non-reactive, even at high temperatures. It is one of the rarest elements in the earth's crust, occurring at a concentration of only 0.005 ppm. Platinum is found uncombined as native platinum and alloyed with iridium as platiniridium. Platinum was first discovered and isolated by Antonio de Ulloa in 1735. The origin of the name comes from the Spanish word platina meaning silver.

General Properties

Symbol:	Pt
Atomic Number:	78
Atomic Weight:	195.084
Element Category:	transition metal
Group, Period, Block:	10, 6, d
Color:	silvery-white
Other Names:	N/A

Physical Properties

Melting Point:	1768 °C, 3215 °F, 2041 K
Boiling Point:	3825 °C, 6917 °F, 4098 K
Density:	21.45 g·cm³
Liquid Density @ Melting Point:	19.77 g·cm³
Density @ 20°C:	21.45 g/cm³
Density of Solid:	21090 kg·m³
Specific Heat:	0.13 (kJ/kg K)
Superconductivity Temperature:	N/A
Triple Point:	2045 K, 2.0 × 10 4 kPa
Critical Point:	N/A
Heat of Fusion (kJ·mol^-1):	19.7
Heat of Vaporization (kJ·mol^-1):	469
Heat of Atomization (kJ·mol^-1):	564.42
Thermal Conductivity:	71.6 W·m^-1·K^-1
Thermal Expansion:	(25 °C) 8.8 µm·m^-1·K^-1
Electrical Resistivity:	(20 °C) 105 nΩ·m
Tensile Strength:	125-240 MPa
Molar Heat Capacity:	25.86 J·mol^-1·K^-1
Young's Modulus:	168 GPa
Shear Modulus:	61 GPa
Bulk Modulus:	230 GPa
Poisson Ratio:	0.38
Mohs Hardness:	4–4.5
Vickers Hardness:	549 MPa
Brinell Hardness:	392 MPa
Speed of Sound:	(r.t.) 2800 m·s^-1
Pauling Electronegativity:	2.28
Sanderson Electronegativity:	N/A
Allred Rochow Electronegativity:	1.44
Mulliken-Jaffe Electronegativity:	N/A
Allen Electronegativity:	N/A
Pauling Electropositivity:	1.72
Reflectivity (%):	73
Refractive Index:	N/A

Chemical Properties

Electrons:	78
Protons:	78
Neutrons:	117
Electron Configuration:	[Xe] 4f¹⁴ 5d⁹ 6s¹
Atomic Radius:	139 pm
Atomic Radius, non-bonded (Å):	2.13
Covalent Radius:	136±5 pm
Covalent Radius (Å):	1.3
Van der Waals Radius:	175 pm
Oxidation States:	6, 5, 4, 3, 2, 1, ?1, ?2, ?3 (mildly basic oxide)
Phase:	Solid
Crystal Structure:	face-centered cubic
Magnetic Ordering:	paramagnetic
Electron Affinity (kJ·mol^-1)	205.321
1^st Ionization Energy:	864.39 kJ·mol^-1
2^nd Ionization Energy:	1791.07 kJ·mol^-1
3^rd Ionization Energy:	N/A

Identifiers

CAS Number:	7440-06-4
EC Number:	231-116-1
MDL Number:	MFCD00011179
Beilstein Number:	N/A
SMILES Identifier:	[Pt]
InChI Identifier:	InChI=1S/Pt
InChI Key:	BASFCYQUMIYNBI-UHFFFAOYSA-N
PubChem CID:	23939
ChemSpider ID:	22381

Abundance

Earth - Total:	1.67 ppm
Mercury - Total:	1.29 ppm
Venus - Total:	1.76 ppm
Earth - Seawater (Oceans), ppb by weight:	N/A
Earth - Seawater (Oceans), ppb by atoms:	N/A
Earth - Crust (Crustal Rocks), ppb by weight:	37
Earth - Crust (Crustal Rocks), ppb by atoms:	4
Sun - Total, ppb by weight:	9
Sun - Total, ppb by atoms:	0.06
Stream, ppb by weight:	N/A
Stream, ppb by atoms:	N/A
Meterorite (Carbonaceous), ppb by weight:	1000
Meterorite (Carbonaceous), ppb by atoms:	100
Typical Human Body, ppb by weight:	N/A
Typical Human Body, ppb by atom:	N/A
Universe, ppb by weight:	5
Universe, ppb by atom:	0.03

History

Discovered By:	Antonio de Ulloa
Discovery Date:	1735
First Isolation:	Antonio de Ulloa (1735)

Health, Safety & Transportation Information for Platinum

Platinum is not toxic in its elemental form; however, safety data for Platinum and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the Products tab. The below information applies to elemental (metallic) Platinum.

Safety Data
Signal Word	N/A
Hazard Statements	N/A
Hazard Codes	N/A
Risk Codes	N/A
Safety Precautions	N/A
RTECS Number	TP2160000
Transport Information	N/A
WGK Germany	nwg
Globally Harmonized System of Classification and Labelling (GHS)	N/A

Review and Print SDS for Platinum Metal

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SAFETY DATA SHEET

Date Created: 05/15/2015

Date Revised: 05/15/2015

SECTION 1. IDENTIFICATION

Product Name: Platinum Metal

Product Number: All applicable American Elements product codes, e.g. PT-M-02, PT-M-03, PT-M-04, PT-M-05

CAS #: 7440-06-4

Relevant identified uses of the substance: Scientific research and development

Supplier details:
American Elements
1093 Broxton Ave. Suite 2000
Los Angeles, CA 90024
Tel: +1 310-208-0551
Fax: +1 310-208-0351

Emergency telephone number:
Domestic, North America +1 800-424-9300
International +1 703-527-3887

SECTION 2. HAZARDS IDENTIFICATION

Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008
The substance is not classified as hazardous to health or the environment according to the CLP regulation.
Classification according to Directive 67/548/EEC or Directive 1999/45/EC
Not applicable
Information concerning particular hazards for human and environment:
No information known.
Hazards not otherwise classified
No information known.
Label elements
Labelling according to Regulation (EC) No 1272/2008
Not applicable
Hazard pictograms
Not applicable
Signal word
Not applicable
Hazard statements
Not applicable
WHMIS classification
Not controlled
Classification system
HMIS ratings (scale 0-4)
(Hazardous Materials Identification System)
HEALTH
FIRE
REACTIVITY
0
0
0
Health (acute effects) = 0
Flammability = 0
Physical Hazard = 0
Other hazards
Results of PBT and vPvB assessment
PBT:
Not applicable.
vPvB:
Not applicable.

SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS

Chemical characterization: Substances
CAS# Description:
7440-06-4 Platinum
Identification number(s):
EC number:
231-116-1

SECTION 4. FIRST AID MEASURES

Description of first aid measures
General information
No special measures required.
After inhalation
Seek medical treatment in case of complaints.
After skin contact
Generally the product does not irritate the skin.
After eye contact
Rinse opened eye for several minutes under running water. If symptoms persist, consult a doctor.
After swallowing
If symptoms persist consult doctor.
Information for doctor
Most important symptoms and effects, both acute and delayed
No further relevant information available.
Indication of any immediate medical attention and special treatment needed
No further relevant information available.

SECTION 5. FIREFIGHTING MEASURES

Extinguishing media
Suitable extinguishing agents
Special powder for metal fires. Do not use water.
For safety reasons unsuitable extinguishing agents
Water
Special hazards arising from the substance or mixture
If this product is involved in a fire, the following can be released:
Platinum oxide
Advice for firefighters
Protective equipment:
No special measures required.

SECTION 6. ACCIDENTAL RELEASE MEASURES

Personal precautions, protective equipment and emergency procedures
Not required.
Environmental precautions:
Do not allow material to be released to the environment without proper governmental permits.
Do not allow product to reach sewage system or any water course.
Do not allow to penetrate the ground/soil.
Methods and material for containment and cleaning up:
Pick up mechanically.
Prevention of secondary hazards:
No special measures required.
Reference to other sections
See Section 7 for information on safe handling
See Section 8 for information on personal protection equipment.
See Section 13 for disposal information.

SECTION 7. HANDLING AND STORAGE

Handling
Precautions for safe handling
Keep container tightly sealed.
Store in cool, dry place in tightly closed containers.
Information about protection against explosions and fires:
No special measures required.
Conditions for safe storage, including any incompatibilities
Storage
Requirements to be met by storerooms and receptacles:
No special requirements.
Information about storage in one common storage facility:
Not required.
Further information about storage conditions:
Keep container tightly sealed.
Store in cool, dry conditions in well sealed containers.
Specific end use(s)
No further relevant information available.

SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTION

Additional information about design of technical systems:
No further data; see section 7.
Control parameters
Components with limit values that require monitoring at the workplace:
7440-06-4 Platinum (100.0%)
PEL (USA) Long-term value: 0.002 mg/m³
soluble salts, as Pt
REL (USA) Long-term value: 1* 0.002** mg/m³
*Metal **soluble salts, as Pt
TLV (USA) Long-term value: 1* 0.002** mg/m³
*metal **soluble salts, as Pt
EL (Canada) Long-term value: 1* 0.002** mg/m³
*metal;**soluble salts (as Pt): S
EV (Canada) Long-term value: 1* 0.002** mg/m³
*metal;**water-soluble compounds (as Pt)
Additional information:
No data
Exposure controls
Personal protective equipment
General protective and hygienic measures
The usual precautionary measures for handling chemicals should be followed.
Maintain an ergonomically appropriate working environment.
Breathing equipment:
Not required.
Protection of hands:
Not required.
Penetration time of glove material (in minutes)
Not determined
Eye protection:
Safety glasses
Body protection:
Protective work clothing.

SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES

Information on basic physical and chemical properties
General Information
Appearance:
Form: Solid in various forms
Color: Silvery-white
Odor: Odorless
Odor threshold: Not determined.
pH-value: Not applicable.
Change in condition
Melting point/Melting range: 1768.4 °C (3215 °F)
Boiling point/Boiling range: 3825 °C (6917 °F)
Sublimation temperature / start: Not determined
Flammability (solid, gaseous)
Not determined.
Ignition temperature: Not determined
Decomposition temperature: Not determined
Auto igniting: Not determined.
Danger of explosion: Product does not present an explosion hazard.
Explosion limits:
Lower: Not determined
Upper: Not determined
Vapor pressure: Not applicable.
Density at 20 °C (68 °F): 21.45 g/cm³ (179 lbs/gal)
Relative density
Not determined.
Vapor density
Not applicable.
Evaporation rate
Not applicable.
Solubility in / Miscibility with Water: Not determined
Partition coefficient (n-octanol/water): Not determined.
Viscosity:
dynamic: Not applicable.
kinematic: Not applicable.
Other information
No further relevant information available.

SECTION 10. STABILITY AND REACTIVITY

Reactivity
No information known.
Chemical stability
Stable under recommended storage conditions.
Thermal decomposition / conditions to be avoided:
Decomposition will not occur if used and stored according to specifications.
Possibility of hazardous reactions
No dangerous reactions known
Conditions to avoid
No further relevant information available.
Incompatible materials:
No information known.
Hazardous decomposition products:
Platinum oxide

SECTION 11. TOXICOLOGICAL INFORMATION

Information on toxicological effects
Acute toxicity:
The Registry of Toxic Effects of Chemical Substances (RTECS) contains acute toxicity data for this substance.
LD/LC50 values that are relevant for classification:
No data
Skin irritation or corrosion:
Generally the product does not irritate the skin.
Eye irritation or corrosion:
No irritant effect.
Sensitization:
No sensitizing effects known.
Germ cell mutagenicity:
No effects known.
Carcinogenicity:
No classification data on carcinogenic properties of this material is available from the EPA, IARC, NTP, OSHA or ACGIH.
The Registry of Toxic Effects of Chemical Substances (RTECS) contains tumorigenic and/or carcinogenic and/or neoplastic data for this substance.
Reproductive toxicity:
No effects known.
Specific target organ system toxicity - repeated exposure:
No effects known.
Specific target organ system toxicity - single exposure:
No effects known.
Aspiration hazard:
No effects known.
Subacute to chronic toxicity:
The Registry of Toxic Effects of Chemical Substances (RTECS) contains multiple dose toxicity
data for this substance.
Additional toxicological information:
To the best of our knowledge the acute and chronic toxicity of this substance is not fully known.

SECTION 12. ECOLOGICAL INFORMATION

Toxicity
Aquatic toxicity:
No further relevant information available.
Persistence and degradability
No further relevant information available.
Bioaccumulative potential
No further relevant information available.
Mobility in soil
No further relevant information available.
Additional ecological information:
General notes:
Do not allow material to be released to the environment without proper governmental permits.
Do not allow undiluted product or large quantities to reach ground water, water course or sewage system.
Avoid transfer into the environment.
Results of PBT and vPvB assessment
PBT:
Not applicable.
vPvB:
Not applicable.
Other adverse effects
No further relevant information available.

SECTION 13. DISPOSAL CONSIDERATIONS

Waste treatment methods
Recommendation
Consult state, local or national regulations to ensure proper disposal.
Uncleaned packagings:
Recommendation:
Disposal must be made according to official regulations.

SECTION 14. TRANSPORT INFORMATION

UN-Number
DOT, ADN, IMDG, IATA
Not applicable
UN proper shipping name
DOT, ADN, IMDG, IATA
Not applicable
Transport hazard class(es)
DOT, ADR, ADN, IMDG, IATA
Class
Not applicable
Packing group
DOT, IMDG, IATA
Not applicable
Environmental hazards: Not applicable.
Special precautions for user
Not applicable.
Transport in bulk according to Annex II of MARPOL73/78 and the IBC Code
Not applicable.
Transport/Additional information: DOT
Marine Pollutant (DOT): No

SECTION 15. REGULATORY INFORMATION

Safety, health and environmental regulations/legislation specific for the substance or mixture
National regulations
All components of this product are listed in the U.S. Environmental Protection Agency Toxic Substances Control Act Chemical substance Inventory.
All components of this product are listed on the Canadian Domestic Substances List (DSL).
SARA Section 313 (specific toxic chemical listings)
Substance is not listed.
California Proposition 65
Prop 65 - Chemicals known to cause cancer
Substance is not listed.
Prop 65 - Developmental toxicity
Substance is not listed.
Prop 65 - Developmental toxicity, female
Substance is not listed.
Prop 65 - Developmental toxicity, male
Substance is not listed.
Information about limitation of use:
For use only by technically qualified individuals.
Other regulations, limitations and prohibitive regulations
Substance of Very High Concern (SVHC) according to the REACH Regulations (EC) No. 1907/2006.
Substance is not listed.
The conditions of restrictions according to Article 67 and Annex XVII of the Regulation (EC) No 1907/2006 (REACH) for the manufacturing, placing on the market and use must be observed.
Substance is not listed.
Annex XIV of the REACH Regulations (requiring Authorisation for use)
Substance is not listed.
REACH - Pre-registered substances
Substance is listed.
Chemical safety assessment:
A Chemical Safety Assessment has not been carried out.

16. OTHER INFORMATION

Safety Data Sheet according to Regulation (EC) No. 1907/2006 (REACH). The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. American Elements shall not be held liable for any damage resulting from handling or from contact with the above product. See reverse side of invoice or packing slip for additional terms and conditions of sale. COPYRIGHT 1997-2016 AMERICAN ELEMENTS. LICENSED GRANTED TO MAKE UNLIMITED PAPER COPIES FOR INTERNAL USE ONLY.

Platinum Isotopes

Natural platinum (Pt) has five stable isotopes (¹⁹²Pt, ¹⁹⁴Pt, ¹⁹⁵Pt, ¹⁹⁶Pt, ¹⁹⁸Pt) and one radioisotope with a very long half life (¹⁹⁰Pt).

Nuclide	Isotopic Mass	Half-Life	Mode of Decay	Nuclear Spin	Magnetic Moment	Binding Energy (MeV)	Natural Abundance (% by atom)
¹⁶⁶Pt	165.99486(54)#	300(100) µs	Unknown	0+	N/A	1262.86	-
¹⁶⁷Pt	166.99298(44)#	700(200) µs	Unknown	7/2-#	N/A	1270.94	-
¹⁶⁸Pt	167.98815(22)	2.00(18) ms	a to ¹⁶⁴Os; ß⁺ to ¹⁶⁸Ir	0+	N/A	1288.33	-
¹⁶⁹Pt	168.98672(22)#	3.7(15) ms	a to ¹⁶⁵Os; ß⁺ to ¹⁶⁹Ir	3/2-#	N/A	1296.41	-
¹⁷⁰Pt	169.982495(20)	14.0(2) ms	a to ¹⁶⁶Os; ß⁺ to ¹⁷⁰Ir	0+	N/A	1304.49	-
¹⁷¹Pt	170.98124(9)	51(2) ms	a to ¹⁶⁷Os; ß⁺ to ¹⁷¹Ir	3/2-#	N/A	1312.57	-
¹⁷²Pt	171.977347(14)	98.4(24) ms	a to ¹⁶⁸Os; ß⁺ to ¹⁷²Ir	0+	N/A	1329.97	-
¹⁷³Pt	172.97644(6)	365(7) ms	a to ¹⁶⁹Os; ß⁺ to ¹⁷³Ir	5/2-#	N/A	1338.04	-
¹⁷⁴Pt	173.972819(13)	0.889(17) s	a to ¹⁷⁰Os; ß⁺ to ¹⁷⁴Ir	0+	N/A	1346.12	-
¹⁷⁵Pt	174.972421(20)	2.53(6) s	a to ¹⁷¹Os; ß⁺ to ¹⁷⁵Ir	5/2-#	N/A	1354.2	-
¹⁷⁶Pt	175.968945(15)	6.33(15) s	ß⁺ to ¹⁷⁶Ir; a to ¹⁷²Os	0+	N/A	1371.6	-
¹⁷⁷Pt	176.968469(16)	10.6(4) s	ß⁺ to ¹⁷⁷Ir; a to ¹⁷³Os	5/2-	N/A	1379.68	-
¹⁷⁸Pt	177.965649(12)	21.1(6) s	ß⁺ to ¹⁷⁸Ir; a to ¹⁷⁴Os	0+	N/A	1387.75	-
¹⁷⁹Pt	178.965363(10)	21.2(4) s	ß⁺ to ¹⁷⁹Ir; a to ¹⁷⁵Os	1/2-	N/A	1395.83	-
¹⁸⁰Pt	179.963031(12)	56(2) s	ß⁺ to ¹⁸⁰Ir; a to ¹⁷⁶Os	0+	N/A	1403.91	-
¹⁸¹Pt	180.963097(16)	52.0(22) s	ß⁺ to ¹⁸¹Ir; a to ¹⁷⁷Os	1/2-	N/A	1411.99	-
¹⁸²Pt	181.961171(17)	2.2(1) min	ß⁺ to ¹⁸²Ir; a to ¹⁷⁸Os	0+	N/A	1420.07	-
¹⁸³Pt	182.961597(17)	6.5(10) min	ß⁺ to ¹⁸³Ir; a to ¹⁷⁹Os	1/2-	N/A	1428.15	-
¹⁸⁴Pt	183.959922(19)	17.3(2) min	ß⁺ to ¹⁸⁴Ir; a to ¹⁸⁰Os	0+	N/A	1445.54	-
¹⁸⁵Pt	184.96062(4)	70.9(24) min	ß⁺ to ¹⁸⁵Ir; a to ¹⁸¹Os	(9/2+)	N/A	1444.31	-
¹⁸⁶Pt	185.959351(23)	2.08(5) h	ß⁺ to ¹⁸⁶Ir; a to ¹⁸²Os	0+	N/A	1461.7	-
¹⁸⁷Pt	186.96059(3)	2.35(3) h	ß⁺ to ¹⁸⁷Ir	3/2-	N/A	1460.46	-
¹⁸⁸Pt	187.959395(6)	10.2(3) d	EC to ¹⁸⁸Ir; a to ¹⁸⁴Os	0+	N/A	1477.86	-
¹⁸⁹Pt	188.960834(12)	10.87(12) h	ß⁺ to ¹⁸⁹Ir	3/2-	N/A	1476.62	-
¹⁹⁰Pt	189.959932(6)	6.5(3)E+11 y	a to ¹⁸⁶Os	0+	N/A	1494.01	0.014
¹⁹¹Pt	190.961677(5)	2.862(7) d	EC to ¹⁹¹Ir	3/2-	0.5	1492.78	-
¹⁹²Pt	191.9610380(27)	Observationally Stable	-	0+	N/A	1500.86	0.782
¹⁹³Pt	192.9629874(18)	50(6) y	EC to ¹⁹³Ir	1/2-	N/A	1508.93	-
¹⁹⁴Pt	193.9626803(9)	Observationally Stable	-	0+	N/A	1517.01	32.967
¹⁹⁵Pt	194.9647911(9)	Observationally Stable	-	1/2-	0.6095	1525.09	33.832
¹⁹⁶Pt	195.9649515(9)	Observationally Stable	-	0+	N/A	1533.17	25.242
¹⁹⁷Pt	196.9673402(9)	19.8915(19) h	ß^- to ¹⁹⁷Au	1/2-	0.51	1541.25	-
¹⁹⁸Pt	197.967893(3)	Observationally Stable	-	0+	N/A	1549.33	7.163
¹⁹⁹Pt	198.970593(3)	30.80(21) min	ß^- to ¹⁹⁹Au	5/2-	N/A	1548.09	-
²⁰⁰Pt	199.971441(22)	12.5(3) h	ß^- to ²⁰⁰Au	0+	N/A	1556.17	-
²⁰¹Pt	200.97451(5)	2.5(1) min	ß^- to ²⁰¹Au	(5/2-)	N/A	1564.25	-
²⁰²Pt	201.97574(32)#	44(15) h	ß^- to ²⁰²Au	0+	N/A	1572.33	-