HAFNIUM FLUORIDE
- CAS No.
- 13709-52-9
- Chemical Name:
- HAFNIUM FLUORIDE
- Synonyms
- HAFNIUM FLUORIDE;HAFNIUM(IV) FLUORIDE;HAFNIUM TETRAFLUORIDE;Hafnium fluoride/ 99.9%;Hafnium(IV) fluoride,98%;HAFNIUM FLUORIDE, 99.99%;HAFNIUM TETRAFLUORIDE 99%;hafnium(4+):tetrafluoride;Hafnium tetrafluoride 99.9%;HafniuM(IV) fluoride, 98% 5GR
- CBNumber:
- CB2756332
- Molecular Formula:
- F4Hf
- Molecular Weight:
- 254.48
- MDL Number:
- MFCD00016127
- MOL File:
- 13709-52-9.mol
- MSDS File:
- SDS
| Melting point | 310°C (subl.) |
|---|---|
| Boiling point | 970°C |
| Density | 7.100 |
| solubility | reacts with H2O |
| form | Powder |
| color | White |
| Water Solubility | React with water. |
| Sensitive | Moisture Sensitive |
| Exposure limits |
ACGIH: TWA 2.5 mg/m3; TWA 0.5 mg/m3 NIOSH: IDLH 250 mg/m3; IDLH 50 mg/m3; TWA 0.5 mg/m3 |
| CAS DataBase Reference | 13709-52-9(CAS DataBase Reference) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS06 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H315-H318-H331-H335 | |||||||||
| Precautionary statements | P280-P302+P352-P304+P340+P311-P305+P351+P338+P310 | |||||||||
| Hazard Codes | Xi,T | |||||||||
| Risk Statements | 32-36/37/38-41-23-37/38 | |||||||||
| Safety Statements | 26-36-45-36/37/39 | |||||||||
| RIDADR | UN 2923 8/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| Hazard Note | Irritant | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 6.1 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 28261990 | |||||||||
| NFPA 704 |
|
HAFNIUM FLUORIDE price More Price(14)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 399868 | Hafnium(IV) fluoride 99.9% trace metals basis (purity excludes up to ~1% zirconium) | 13709-52-9 | 25g | $352 | 2022-05-15 | Buy |
| Alfa Aesar | 036392 | Hafnium(IV) fluoride, 99.9% (metals basis excluding Zr), Zr 2-4% | 13709-52-9 | 25g | $428 | 2021-12-16 | Buy |
| Alfa Aesar | 036392 | Hafnium(IV) fluoride, 99.9% (metals basis excluding Zr), Zr 2-4% | 13709-52-9 | 5g | $129 | 2021-12-16 | Buy |
| Alfa Aesar | 045061 | Hafnium(IV) fluoride, 99.9% (metals basis) | 13709-52-9 | 25g | $470 | 2023-06-20 | Buy |
| American Custom Chemicals Corporation | ING0002852 | HAFNIUM TETRAFLUORIDE 95.00% | 13709-52-9 | 5G | $875.73 | 2021-12-16 | Buy |
HAFNIUM FLUORIDE Chemical Properties,Uses,Production
Preparation
Hafnium tetrafluoride may be prepared by passing anhydrous hydrogen fluoride over hafnium tetrachloride at 300°C:
HfCl4 + 4HF HfF4 + HCl
Another method of preparation involves thermal decomposition of ammonium fluorohafnate, (NH4)2 HfF6 [16925-24-9] in the absence of air:
(NH4)2 HfF6 HfF4 + 2NH3 + 2HF
Also, HfF4 can be prepared by treating metallic hafnium with 40% aqueous HF. The monohydrate formed may be heated at 350°C for several days under a flow of fluorine and nitrogen to yield anhydrous HfF4.
Hf + 4HF (aq) → HfF4•H2O + 2H2
Chemical Properties
Off-white powder
Physical properties
White monoclinic crystals; refractive index 1.56; density 7.1 g/cm3; sublimes at 970°C.
Uses
Hafnium(IV) fluoride is used as Vacuum deposition.
Production Methods
Hafnium tetrafluoride is prepared by careful thermal decomposition of ammonium fluorohafniate in an oxygen- free atmosphere or by passing anhydrous hydrogen fluoride over hafnium tetrachloride at 300℃. Direct synthesis from the elements is incomplete because the product merely forms a film on the metal. Ammonium fluorohafniate can be prepared by crystallization from an aqueous hydrofluoric acid solution by adding ammonium fluoride.
HAFNIUM FLUORIDE Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22968 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-61398051 +8613650506873 | sales@chemdad.com | China | 39916 | 58 |
| Alfa Chemistry | +1-5166625404 | Info@alfa-chemistry.com | United States | 21317 | 58 |
| Shaanxi Didu New Materials Co. Ltd | +86-89586680 +86-13289823923 | 1026@dideu.com | China | 9116 | 58 |
| GIHI CHEMICALS CO.,LIMITED | +8618058761490 | info@gihichemicals.com | China | 49999 | 58 |
| Shanghai Acmec Biochemical Technology Co., Ltd. | +undefined18621343501 | product@acmec-e.com | China | 33349 | 58 |
| Aladdin Scientific | +1-833-552-7181 | sales@aladdinsci.com | United States | 57511 | 58 |
| Mainchem Co., Ltd. | +86-0592-6210733 | sale@mainchem.com | China | 32360 | 55 |
| J & K SCIENTIFIC LTD. | 010-82848833 400-666-7788 | jkinfo@jkchemical.com | China | 96815 | 76 |