Our Products

 Hydrofluoric Acid (HF) is available in multiple concentrations (40%, 48–52%, 55%, and 70%) with varying purity levels. It is used in diverse applications, including metal treatment, glass etching, and semiconductor manufacturing.   

Typical industrial grade hydrofluoric acid (HF) specifications in the US and international markets are as follows:

- Concentration (assay as HF): Common grades are 40%, 48-52%, 55%, and 70%. The most common technical grade is around 48-52% HF.

- Fluorosilicic acid (H2SiF6) content: Usually limited to ≤0.02% to ≤0.5% depending on grade.

- Non-volatile acids (e.g., sulfuric acid H2SO4): Typically limited to ≤0.01% to ≤1% depending on the quality.

- Density: Around 1.13 - 1.17 g/cm³ depending on concentration.

- Physical properties: Colorless liquid, boiling point about 105 - 112°C, melting point around -35 to -44°C.

- Purity indicators for high-purity grades (e.g., semiconductor grade) include very low metal impurities and residuals (down to a few ppm or less).

For example, a 40% technical grade HF has:

- HF concentration: 40-42%

- Fluorosilicic acid ≤0.02%

- Sulfuric acid ≤0.01%

- Density ~1.13 g/ml

A higher grade 52% HF may have fewer impurities but similar limits on acidic contaminants.

Semiconductor-grade HF (about 49.5-50.5%) has extremely low metal impurities (e.g. silver, aluminum, arsenic below ppm or sub-ppm levels) for ultra-pure applications 

Ammonium bifluoride is mainly used as a glass etchant, in metal surface treatment, and sometimes as an intermediary in hydrofluoric acid production. It is hazardous and requires careful handling, with corrosive properties and toxicity, especially when heated or in contact with acids.

ammonium bifluoride (NH4HF2)

| Specification | Typical Value / Range |

|-----------------------------|--------------------------------------|

| Chemical formula | NH4HF2  |

| Appearance | White crystalline solid or powder |

| Purity (assay) | ≥ 98% (acidimetric) |

| Residue on ignition | ≤ 0.05% |

| Silica (SiO2) | ≤ 0.5%  |

| Sulfate (SO4) | ≤ 0.05% |

| Melting point | Approx. 125.6°C |

| Boiling point | Approx. 240°C  

| Density  | About 1.5 g/cm³ |

| pH (5-7% aqueous solution) | Around 2 - 3 |

| Solubility | Highly soluble in water |

| Odor | Acrid  |

| Hazard classification | Corrosive, toxic |

Sodium bifluoride dissociates in water to release hydrofluoric acid (HF) and sodium fluoride (NaF), showing strong acidic and fluoride-related properties. It is used widely for metal surface treatment, glass etching, and as a preservative.

It is hazardous, requiring safe storage and handling procedures to avoid skin or respiratory exposure. It reacts violently with strong acids and bases and must be kept away from moisture and incompatible substances

  sodium bifluoride (NaHF2):

| Specification | Typical Value / Description |

|-------------------------|--------------------------------------------------|

| Chemical formula | NaHF2 |

| Molar mass | Around 61.99 - 62.00 g/mol |

| Appearance  | White crystalline solid or powder |

| Odor | Slightly pungent or odorless |

| Density | Approx. 2.08 g/cm³ |

| Melting point | About 130 - 160.5°C (may decompose on heating) |

| Solubility | Soluble in water |

| pH of aqueous solution | Acidic (around 3-4 for concentrated solution) |

| Heavy metals (as Pb) | ≤ 0.005% (typical max impurity limit) |

| Chlorides (Cl) | ≤ 0.01%  

| Sulfates (SO4) | ≤ 0.01% |

| Hazard classification | Corrosive, toxic, harmful if inhaled or ingested |

Optical grade fluorides are high-purity crystalline materials designed for precision optical applications. With excellent transmission properties across UV, visible, and IR ranges, they are widely used in lenses, windows, coatings, and laser systems. Our products meet strict optical quality standards, ensuring stability and consistency for demanding industries.de-related properties. It is used widely for metal surface treatment, glass etching, and as a preservative.

It is hazardous, requiring safe storage and handling procedures to avoid skin or respiratory exposure. It reacts violently with strong acids and bases and must be kept away from moisture and incompatible substances

 Product Specifications

Material Purity (min.) Transmission Range Key Features

Calcium Fluoride (CaF₂) ≥ 99.99% 0.13 –10 μm Low refractive index, high UV & IR transmission, widely used for windows and lenses

Magnesium Fluoride (MgF₂) ≥ 99.99% 0.12 –7.5 μm Extremely durable, low birefringence, ideal for anti-reflective coatings

Barium Fluoride (BaF₂) ≥ 99.99% 0.20 –12 μm Broad IR transmission, high damage threshold, excellent for spectroscopy

Lithium Fluoride (LiF) ≥ 99.99% 0.11 – 6 μm Exceptional UV transmission, suitable for VUV optics and specialized laser applications

---

Applications

Optical windows and lenses

Anti-reflective and protective coatings

Laser optics (UV, IR, and VUV)

Spectroscopy instruments

Aerospace and high-performance optical systems