
PRODUCT SPECIFICATION
Hydrofluorosilicic Acid
1.0
Product Description
Strongly corrosive, pale yel ow liquid with characteristic sour odour. A source
of fluoride for water treatment applications.
2.0
Other Names
Hydrofluorosilicic acid; hydrosilicofluoric acid; hexafluorosilicic acid; HFA
3.0
Product Code
HFA22-B, HFA22-200, HFA22-1000
4.0
Suggested Applications*
Water treatment, sterilising equipment. Dose rate should not exceed 1.5 mg/L of
fluoride in the final water, based in the Drinking-water Standards for New Zealand
2008.
5.0
Packaging
200L drums, 1000L IBC’s, Bulk
6.0
Shelf Life and Storage Requirements
It is recommended that the product should be consumed within 24 months of
manufacture.
7.0
Specifications
Parameter
Range
Chemical formula
H2SiF6
Assay
21.0 – 23.0 %
Free acid (as HF)
< 1.0 %
Total F (by calculation)
16.8 – 18.4 %
Insoluble
< 0.2 %
Haze colour
< 200 Hazen
8.0
Physical Properties
Parameter
Range
SG
1.20 – 1.23
Freezing Point
0 °C approx.
Boiling Point
> 100 °C
Vapour Pressure
18 mmHg @20 °C
Solubility
Miscible with water
Turbidity
< 20 NTU*
*Typical value
9.0
Approvals and Certifications
HSNO approval code: HSR004496
10.0 Country of Origin
Manufactured in New Zealand
11.0 Documentation Available on Request
Safety Data Sheet, Certificate of Analysis.
Issue Date: 10/10/2018
PM Reference: Version 003
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This specification is valid at the time of issue, but may be subject to change without notice. We advise you to review the information in this specification in the specific context of the intended application. Ixom Operations
Pty Ltd wil not be responsible for damages of any nature resulting from the use of or reliance upon the information in this specification. Where you consider it appropriate, please reconfirm specifications with us at the time
of purchase. *Customers are responsible for undertaking their own enquiries to ensure that a product conforming with the fol owing specifications is suitable for the customer’s use(s), purpose(s), application(s),
process(es) and equipment. (To the extent permissible under the statutes and regulations of the country of supply), Ixom Operations Pty Ltd and its related companies exclude al legal and other responsibility and liability
associated with ensuring that the product is fit or suitable for customers’ uses, purposes, applications, processes or equipment.