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Hexafluorophosphoric acid

Hexafluorophosphoric acid
Hexafluorophosphoric acid structure
Chemical Name:
Hexafluorophosphoric acid
HexafL;16940-81-1;uorophosphoric acid;hexafluorophosphoric;Hexafluorophosphoric aci;HEXAFLUOROPHOSHORIC ACID;HEXAFLUOROPHOSPHORIC ACID;Hexafluorophsophoric acid;fluorophosphoricacid[hpf6];HYDROGEN HEXAFLUOROPHOSPHATE
Molecular Formula:
Formula Weight:
MOL File:

Hexafluorophosphoric acid Properties

Melting point:
10 °C
1.651 g/mL at 25 °C
storage temp. 
Fuming Solution
Colorless or slightly colored
Water Solubility 
hydrolyzes slowly
Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference
16940-81-1(CAS DataBase Reference)
EPA Substance Registry System
Phosphate(1-), hexafluoro-, hydrogen (1:1) (16940-81-1)
  • Risk and Safety Statements
Signal word  Danger
Hazard statements  H290-H300+H310-H314-H331-H300-H310-H318-H330
Precautionary statements  P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P301+P310a-P304+P340-P320-P405-P501a
Hazard Codes  T+,T,C
Risk Statements  26/27/28-35-34-23/24/25-14
Safety Statements  26-28-36/37/39-45-7/9-36/37
RIDADR  UN 1782 8/PG 2
WGK Germany  3
RTECS  SY7115000
Hazard Note  Corrosive/Toxic
HazardClass  8
PackingGroup  II
HS Code  28111990
NFPA 704
4 1

Hexafluorophosphoric acid price More Price(7)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 200956 Hexafluorophosphoric acid solution ~55 wt. % in H2O 16940-81-1 25g $37.7 2020-08-18 Buy
Sigma-Aldrich 200956 Hexafluorophosphoric acid solution ~55 wt. % in H2O 16940-81-1 500g $102 2020-08-18 Buy
Alfa Aesar L15728 Hexafluorophosphoric acid, ca 60% w/w aq. soln. 16940-81-1 25ml $15.2 2020-06-24 Buy
Alfa Aesar L15728 Hexafluorophosphoric acid, ca 60% w/w aq. soln. 16940-81-1 100ml $51.1 2020-06-24 Buy
Strem Chemicals 93-1531 Hexafluorophosphoric acid, 60-70% in water 16940-81-1 250g $50 2020-06-24 Buy

Hexafluorophosphoric acid Chemical Properties,Uses,Production

Chemical Properties

colourless to slightly brown liquid (aqueous solution)


Metal cleaners, electrolytic or chemical polishing agents for the formation of protective coatings for metal surfaces, and as a catalyst.

General Description

A clear colorless aqueous solution containing 60 percent hydrogen hexafluorophosphate (HPF6) by mass. Density 1.65 g / cm3. Corrosive to metals and tissue.

Air & Water Reactions

Fumes in air. Soluble in water with release of heat.

Reactivity Profile

Hexafluorophosphoric acid reacts exothermically with chemical bases (examples: amines, amides, and inorganic hydroxides). These reactions can generate dangerously large amounts of heat in small spaces. Dilution may generate significant heat. Reacts with active metals, including such structural metals as aluminum and iron, to release hydrogen, a flammable gas. Can initiate the polymerization of certain alkenes. Reacts with cyanide compounds to release gaseous hydrogen cyanide. Generates flammable and/or toxic gases in contact with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides, and strong reducing agents. Additional gas-generating reactions occur with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), and carbonates. May catalyze (increase the rate of) chemical reactions.


Strong irritant to tissue.

Health Hazard

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Fire Hazard

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

Hexafluorophosphoric acid Preparation Products And Raw materials

Raw materials

Preparation Products

Hexafluorophosphoric acid Suppliers

Global( 134)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86(0)13336195806 +86-571-85586718
+86-571-85864795 China 19929 60
career henan chemical co
+86-371-86658258 CHINA 30039 58
Zhonglan Industry Co., Ltd.
(86) 531-82956570
(86) 531-82956571 CHINA 4895 58
Hubei xin bonus chemical co. LTD
027-59338440 CHINA 23045 58
Chongqing Chemdad Co., Ltd
+86-13650506873 CHINA 35434 58
86-18523575427 CHINA 47486 58
Amadis Chemical Company Limited
0086-571-89925065 China 132149 58
Mainchem Co., Ltd. +86-0592-6210733
+86-0592-6210733 CHINA 32444 55
Chemwill Asia Co.,Ltd. 86-21-51086038
86-21-51861608;;; CHINA 23977 58
J & K SCIENTIFIC LTD. 400-666-7788 010-82848833-
86-10-82849933; China 96815 76

View Lastest Price from Hexafluorophosphoric acid manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2020-05-20 Hexafluorophosphoric acid
US $1.00-1.00 / KG 1g 99% 50ton Shaanxi Dideu Medichem Co. Ltd
2019-06-27 Hexafluorophosphoric acid
US $10.00 / KG/Tin 1KG 99% 100 career henan chemical co

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