Chloroplatinic acid

  • Name:
  • Platinate(2-),hexachloro-, hydrogen (1:2), (OC-6-11)-

  • Superlist Name:
  • Chloroplatinic acid
  • CAS No.:
  • 16941-12-1

  • Molecular Structure:
  • Formula:
  • H2PtCl6
  • Molecular Weight:
  • 409.81
  • Deleted CAS:
  • 110972-89-9,127521-16-8,131620-42-3,1335-29-1,140889-50-5,143337-19-3,148880-59-5,60322-59-0,60605-43-8,70227-39-3,97301-98-9,98032-39-4
  • Synonyms:
  • Chloroplatinic(IV)acid (6CI);Platinate(2-),hexachloro-, dihydrogen, (OC-6-11)- (9CI);Dihydrogen hexachloroplatinate;Hexachloroplatinic acid;Hexachloroplatinic(IV) acid;Hydrogen hexachloroplatinate;Hydrogenplatinum chloride (H2PtCl6);Platinic acid (H2PtCl6);Platinum chloride (H2PtCl6);
  • 241-010-7
  • Density:
  • 2.43 g/mL at 25 °C(lit.)
  • Melting Point:
  • 60 °C(lit.)
  • Solubility:
  • 0.5 M at 20 °C, clear, orange in water
  • Appearance:
  • Orange/Red Crystals
  • Hazard Symbols:
  • ToxicT,CorrosiveC,IrritantXi
  • Risk Codes:
  • 25-34-42/43
  • Safety Description:
  • 26-27-36/37/39-45-22 Details
  • Transport Information:
  • UN 3264 8/PG 3

chloroplatinic acid msds

Hexachloroplatinic(IV) acid
Section 1 – Chemical Product and Company Identification
Product Name: Hexachloroplatinic(IV) acid Company Identification: RUIYUAN GROUP LIMITED
Address: No.2277 Zuchongzhi Road,Pudong,Shanghai,China Zipcode: 201203 Tel: +86 2150456736 Fax: +86 2160853441 Email:
Section 2 -Product Identification :
【Product Name】Hexachloroplatinic(IV) acid 【Synonyms】Chloroplatinic acid hexahydrate 【CAS】16941-12-1 【Formula】H2PtCl6•6H2O 【Molecular Weight】409.81 【EINECS】241-010-7 【RTECS】TP1510000 【RTECS Class】Tumorigen; Mutagen; Reproductive Effector; Primary Irritant 【Merck】14,7526 【EC Class】irritant
Section 3 – Physical and Chemical PropertiesAppearance】Orange yellow powder or red brown crystalline 【Solubility in water】Soluble 【Melting Point】60 【Density】 2.43g/cm3 【General Description】
Chloroplatinic acid, is a reddish-brown solid. Chloroplatinic acid is soluble in water and will yield a mildly acidic solution. Chloroplatinic acid may cause illness from
inhalation of the dust and Chloroplatinic acid is irritating to skin and eyes. When
heated to high temperatures Chloroplatinic acid may decompose to toxic chloride
fumes. Chloroplatinic acid may burn, but may be difficult to ignite. Chloroplatinic acid is used for manufacturing indelible ink and in electroplating processes. 【Vapor Density】N/P
Section 4 – First Aid Measures 【Ingestion】
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT
induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. 【Inhalation】
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration. Consult doctor if symptoms persist. 【Skin】
Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before
reuse. Seek immediate medical advice. 【Eyes】
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally
lifting the upper and lower eyelids. Get medical aid. Consult doctorection 5 – Handling and Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away
from incompatible substances. Store protected from moisture. 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before
reuse. Avoid contact with eyes, skin, and clothing. Avoid contact with skin and eyes. Keep container tightly closed. Avoid ingestion and inhalation. Ensure good
ventilation/exhaustion at the workplace.
Section 6 – Hazards Identification 【Inhalation】Causes irritation of mucous membrane. Can produce delayed
pulmonary edema. 【Skin】Causes skin irritation. 【Eyes】Causes eye irritation. May cause chemical conjunctivitis. 【Ingestion】May cause gastrointestinal irritation with nausea, vomiting and
diarrhea. 【Hazards】Contact with metals may evolve flammable hydrogen gas. 【EC Risk Phrase】25-34-42/43-36/38-36/37/38 【EC Safety Phrase】26-27-36/37/39-45-22 【UN】UN3264
Section 7 – Exposure Controls/Personal Protection 【Personal Protection】
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA’s eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to preventkin exposure. Clothing: Wear appropriate protective clothing to prevent skin
exposure. 【Respirators】
A respiratory protection program that meets OSHA’s 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator’s use. 【Exposure Effects】
Effects may be delayed. Laboratory experiments have resulted in mutagenic effects. Animal studies have reported the development of tumors. May cause reproductive
effects. None 【Poison Class】2 (Very strong toxins)
Section 8 – Fire Fighting Measures 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH
(approved or equivalent), and full protective gear. During a fire, irritating and highly
toxic gases may be generated by thermal decomposition or combustion. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Extinguishing media: Use extinguishing media most appropriate for the
surrounding fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam. 【Fire Potential】This material is probably combustible.
Section 9 – Accidental Release Measures 【Small spills/leaks】
Vacuum or sweep up material and place into a suitable disposal container. Clean up
spills immediately, using the appropriate protective equipment. Avoid generating
dusty conditions. Provide ventilation.
Section 10 – Stability and ReactivityDisposal Code】27 【Stability】
Stable at room temperature in closed containers under normal storage and handling
conditions. 【Incompatibilities】
Strong oxidizing agents, acids, aluminum, ammonia, magnesium, nitrates, zinc, heat, moisture, thiocyanates, organic solvents. 【Decomposition】
Hydrogen chloride, irritating and toxic fumes and gases, oxides of palladium. 【Combustion Products】Fire may produce irritating, corrosive and/or toxic gases.
Section 11 -Transport Information 【UN Number】UN3264 【Hazard Class】8 【Packing Group】III 【HS Code】2843900090
ear suitable protective clothing.
Section 12 – Additional Information
MSDS Creation Date: 9/09/2010 Revision #8 Date: 10/16/2011
The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users should make their own investigations
to determine the suitability of the information for their particular purposes. In no event shall Fisher be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental,onsequential or exemplary damages, howsoever arising, even if Fisher has been advised of the possibility of such damages. Copyright 2010 YURUI (SHANGHAI) CHEMICAL CO.,LTD License granted to make unlimited
paper copies for internal use only


【英文别名】Platinic chloride; Chloroplatinic acid; Chloroplatinic(IV) acid; Dihydrogen hexachloroplatinate; Dihydrogen hexachloroplatinate(2-); Hexachloroplatinic acid; Hexachloroplatinic(4+) acid, hydrogen-; Hexachloroplatinic(IV) acid; Hydrogen hexachloroplatinate(4+); Hydrogen hexachloroplatinate(IV); Platinate(2-), hexachloro-, dihydrogen, (oc-6-11)-; Platinate(2-), hexachloro-, dihydrogen (8CI); Platinate(2-), hexachloro-, dihydrogen, (OC-6-11)-; Platinate(2-), hexachloro-, hydrogen (1:2), (OC-6-11)-; Chloroplatinic acid, solid; platinum; tetrachloroplatinum dihydrochloride; tetrachloroplatinum dihydrochloride hydrate[2]


氯铂酸样品  氯铂酸样品











(H3O)2PtCl6·n H2O<–>PtCl4 + 2 HCl + (n + 2) H2O

PtCl4 <–> PtCl2 + Cl2

PtCl2 <–> Pt + Cl2
CAS No.:16941-12-1

Chloroplatinic acid Hexachloroplatinic acid

Chloroplatinic acid
CAS number 16941-12-1 Yes
PubChem 61859
ChemSpider 55731 Yes
UNII Q65224GJ7F Yes
EC number 241-010-7
RTECS number TP1510000
Jmol-3D images Image 1
Molecular formula H2PtCl6
Molar mass 409.81 g/mol
Appearance Reddish brown solid
Density 2.431 g/cm3
Melting point 60 °C (333 K)
Boiling point decomp
Solubility inwater highly soluble
Crystal structure Anti-fluorite.
Dipole moment 0 D
MSDS External MSDS
EU Index 078-009-00-4
EU classification Toxic (T)
Corrosive (C)
R-phrases R25R34R42/43
S-phrases (S1/2)S22S26S36/37/39,S45
NFPA 704
NFPA 704.svg
Related compounds
Other anions Hexachloropalladic acid
Other cations Potassium hexachloroplatinate,
Ammonium hexachloroplatinate,
Rubidium hexachloroplatinate,
Caesium hexachloroplatinate

Chloroplatinic acid Applications


[edit]Potassium determination

See also: Potassium hexachloroplatinate

Chloroplatinic acid was popularized for the determination of potassium. The potassium is selectively precipitated as potassium chloroplatinate. Determinations were done in 85% (v/v) alcohol solutions with excess platinate ions, and the precipitated product was weighed. Potassium could be detected for solutions as dilute as 0.02 to 0.2% (m/v).[6]

This method for determination of potassium was advantageous vs. the cobaltinitrite method used previously, since it required a single precipitationreaction.[citation needed] Today, the concentration of potassium is determined with an ion-selective electrode. These modern methods remain subject to interference.

[edit]Purification of platinum

See also: Ammonium hexachloroplatinate

Treatment with an ammonium salt, such as ammonium chloride, gives ammonium hexachloroplatinate,[7] which is very insoluble in ammonium solutions. Heating the ammonium salt in hydrogen reduces it to elemental platinum. Platinum is often isolated from ores or recycled from residues thus.[8]


Like many platinum compounds, chloroplatinic acid is used in catalysis. This compound was first reported by John Speier and colleagues from Dow Corning Corporation to catalyze the reaction of silyl hydrides with olefins, hydrosilylation. Typical of his reactions, Speier used isopropanol solutions containing trichlorosilane (SiHCl3), and methyldichlorosilane (CH3HSiCl2), with pentenes. Prior work on the addition of silanes to alkenes required radical reactions that were inefficient. [9][10] It is generally agreed that chloroplatinic acid is a catalyst precursor. A possible role for colloidal platinum or zero-valent complexes has also been considered. [11]

[edit]Related compounds

Chloroplatinic acid prepared from aqua regia is occasionally contaminated with nitrosonium hexachloroplatinate, (NO)2PtCl6. This species is obtained by the reaction of nitrosyl chloride, NOCl, and Pt metal

Chloroplatinic acid

Chloroplatinic acid or hexachloroplatinic acid is the chemical compound usually found as the hexahydrate with the formula H2PtCl6·(H2O)6. This is one of the most readily available soluble compounds of platinum. It is rarely obtained in the pure state. The commercial product is the hydroniumsalt of the hexachloroplatinate(IV) anion. Therefore, the correct formula is [H3O]2[PtCl6]·4H2O.[1][2] The related palladium compound, [H3O]2[PdCl6], is extremely unstable and has not been isolated in pure form


Platinum is being dissolved in hot aqua regia

Chloroplatinic acid is produced by dissolving platinum metal sponge in aqua regia. This reaction is rumored to produce nitrogen-containing platinum compounds, but the product is H2PtCl6.[citation needed]Chloroplatinic acid is brownish-red, and can be isolated by evaporating this solution to a syrup.[4]

Pt + 4 HNO3 + 6 HCl → H2PtCl6 + 4 NO2 + 4 H2O

Alternative methods have been heavily investigated, but the older literature can be unreliable.[5]


When hexachloroplatinic acid is heated, it decomposes through platinum(IV) chloride and platinum(II) chloride to elemental platinum, although the reactions do not occur stepwise, cleanly:[1]

(H3O)2PtCl6·n H2is in equilibrium with PtCl4 + 2 HCl + (n + 2) H2O
PtCl4 is in equilibrium with PtCl2 + Cl2
PtCl2 is in equilibrium with Pt + Cl2

All three reactions are reversible.


氯铂酸,或称六氯铂酸六水合六氯合铂(IV)酸,是一个无机化合物,其化学式为 H2PtCl6·(H2O)6)。氯铂酸是最快捷容易取得的铂(俗名白金)的化合物。氯铂酸很少在纯净状态取得。氯铂酸在商业交易中通常以氯铂酸的水合氢离子盐形式出售。所以,氯铂酸实际的化学式用[H3O]2[PtCl6]·4H2O.(5,6)来描述较恰当。相应的氯钯酸[H3O]2[PdCl6]极度不稳定,尚未制纯



Pt + 4 HNO3 + 6 HCl → H2PtCl6 + 4 NO2 + 4 H2O




氯铂酸常用作检测钾离子的存在。钾离子可与氯铂酸生成氯铂酸钾。检测过程是在85% (v/v)酒精中与过量的氯铂酸反应,之后把生成的沉淀物量度重量,从而测出钾含量。钾可以在氯铂酸溶液浓度0.02到0.2% 间准确测定(m/v)。[4]