Inorganic Acids & Bases
REACH
Hexafluorotitanic acid
CAS Number
17439-11-1
EC Number
241-460-4
What is Hexafluorotitanic acid?
Hexafluorotitanic acid (CAS 17439-11-1) is an inorganic fluorotitanate compound in aqueous solution, used industrially to deposit titanium-fluoride conversion coatings on metal and non-metal substrates.
Where is Hexafluorotitanic acid used?
- Metal pretreatment and coil coating: thin titanium-based conversion layers
- Aluminum, steel and galvanized surfaces: chromate-free alternative before painting or powder coating
- Construction: concrete densifiers and facade treatments that react with substrate minerals to harden and seal surfaces
- Textile and paper processing: modify fiber or sheet surfaces to improve dye uptake or coating adhesion
- Water treatment: pH adjustment and fluoride-source reagent at controlled dosing rates
- It acts as a surface activator and mild etchant for adhesion promotion and corrosion protection without heavy-metal chemistry.
Commercial specifications
- Aqueous solution, concentrations typically around 50%
- Packaging from intermediate bulk containers to drums
Other Names (Synonyms)
Dihydrogen hexafluorotitanate(2-)|Titanate(2-), hexafluoro-, dihydrogen|Titanate(2-), hexafluoro-, hydrogen (1:2), (OC-6-11)-|RefChem:133828|Hexafiuorotitanic acid solution|Titanate(2), hexafluoro, dihydrogen, (OC611)|Hydrogen hexafluorotitanate(IV)
What are the physical properties of Hexafluorotitanic acid?
Boiling Point 100°C[at 101 325 Pa]
Density 1.675 g/cm³
Appearance liquid
Color colorless
Form liquid
How is Hexafluorotitanic acid classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS06· Toxic
Hazard Statements
H290 May be corrosive to metals
H301 Toxic if swallowed
H311 Toxic in contact with skin
H314 Causes severe skin burns and eye damage
Precautionary Statements
P234 Keep only in original packaging.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P262 Do not get in eyes, on skin, or on clothing.
Which trade and regulatory codes apply to Hexafluorotitanic acid?
HS Code 2826199090
UN Number 3264
ADR Class 8
Packing Group II
Storage Class 6.1D - Non-combustible acute toxic Cat.3
toxic hazardous materials or hazardous materials causing chronic effects
WGK (Germany) 3