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Reagent Hydrofluoric Acid

Q/DWH003-1999 Molecular Formula: HF
Molecular Weight: 20.01
Properties: colorless transparent liquid with strong pungent odor and severe toxicity, can fast corrode silicon materials such as glass, ceramics, enamel and cement products.
Uses: used as laboratory reagent; to produce semiconductor parts in electronic industry.
Quality Index (GB7373-87)

Item

Index

G.R

A.R

C.P

Hydrogen Fluoride (HF), w/ % ≥

40.0

40.0

40.0

Ignition Residue ( Sulfate ), w/ % ≤

0.001

0.002

0.01

Chloride Content (Cl), w/ % ≤

0.0005

0.001

0.005

Sulfate and Sulfite (SO4), w/ % ≤

0.001

0.002

0.005

Phosphate (PO4), w/ % ≤

0.0001

0.0002

0.0005

Fluorosilicate (SIF6), w/ % ≤

0.02

0.04

0.06

Iron (Fe), w/ % ≤

0.00005

0.0001

0.0005

Heavy Metal (Pb), w/ % ≤

0.0001

0.0005

0.001