- Arsenous acid, triethylester
- Arsenous trifluoride
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Cas Database |
| Name |
Arsenous trifluoride |
EINECS | 232-060-0 |
| CAS No. | 7784-35-2 | Density | 2.666 g/cm3 |
| PSA | 0.00000 | LogP | 0.87980 |
| Solubility | soluble in alcohol, ether, benzene and ammonia solution. Decomposes in water | Melting Point |
-8.5 °C |
| Formula | AsF3 | Boiling Point | 60.4 °C |
| Molecular Weight | 131.917 | Flash Point | N/A |
| Transport Information | UN 1556 | Appearance | Colorless liquid |
| Safety | 20/21-28-45 | Risk Codes | 23/25 |
| Molecular Structure |
|
Hazard Symbols |
 T
|
| Synonyms |
Arsenicfluoride (AsF3) (6CI,8CI);Arsenic trifluoride;Trifluoroarsine; |
Article Data | 71 |
Arsenous trifluoride Synthetic route
| Conditions | Yield |
|---|---|
| In liquid sulphur dioxide under Ar; recrystn. (SO2), elem. anal.; | A 100% B n/a |
| Conditions | Yield |
|---|---|
| In sulfur dioxide 1 d; slow removal of solvent, cooling to 0°C; | A 99.7% B n/a |
- 116-14-3
polytetrafluoroethylene
- 12536-35-5
Te4(2+)*2AsF6(1-)=Te4(AsF6)2
A
- 76-16-4
Hexafluoroethane
B
- 41055-97-4
bis(pentafluoroethyl)tellurium
C
- 41055-98-5
bis(pentafluoroethyl) ditelluride
D
- 55620-41-2
pentafluoroethyl(nonafluorobutyl)tellurium
E
- 7784-35-2
arsenic(III) fluoride
| Conditions | Yield |
|---|---|
| at 100°C for 11 d, at 15 atm in a Monel reactor; | A n/a B 87% C 12.2% D 0.5% E n/a |
| at 100°C for 11 d, at 15 atm in a Monel reactor; | A n/a B 87% C 12.2% D 0.5% E n/a |
| at 100°C for 11 d, at 15 atm in a Monel reactor; | A n/a B 87% C 12.2% D 0.5% E n/a |
- 7784-36-3
arsenic pentafluoride
- 7784-33-0
arsenic(III) bromide
A
- 119484-31-0
AsBr4(1+)*AsF6(1-)={AsBr4}{AsF6}
B
- 7784-35-2
arsenic(III) fluoride
| Conditions | Yield |
|---|---|
| With bromine Condensing of AsF5 onto Br2 and AsBr3 at -196°C, warming to -5°C until a clear soln. is formed (1 min), cooling (-196°C), repeating of process in excess of 10 times.; Evapn. of volatiles in vac (-5°C, 10 min).; | A 60% B n/a |
| Conditions | Yield |
|---|---|
| In neat (no solvent) byproducts: KAsF4, HCl; dropping AsCl3 to KF*HF over 1 h while heating to 50-60°C; and 1 h while heating to 170°C;; distn.; elem. anal.;; | 28.3% |
| Conditions | Yield |
|---|---|
| In neat (no solvent) byproducts: C6H5COOC5H11; stirring mixt. of (C5H11O)3As and C6H5COF for 0.5 h at room temp. and 1 h while heating to 170°C;; distn. of fraction during heating process; reapeated fractionated distn.; elem. anal.;; | 15.1% |
- 7782-49-2
selenium
- 7784-36-3
arsenic pentafluoride
- 7553-56-2
iodine
A
- 59544-89-7
SeI3(1+)*AsF6(1-)=(SeI3)(AsF6)
B
- 7784-35-2
arsenic(III) fluoride
| Conditions | Yield |
|---|---|
| byproducts: NaSO3F; in cold very vigorous reaction; | |
| byproducts: NaSO3F; in cold very vigorous reaction; |
| Conditions | Yield |
|---|---|
| In neat (no solvent) from As and gaseous F2 with inflammation;; small amount of AsF5;; | |
| In neat (no solvent) from gaseous F2 and As; vigorous reaction; in a sufficiently rapid flow of F2 also AsF5 is formed;; | |
| In neat (no solvent) from gaseous F2 and As; vigorous reaction; in a sufficiently rapid flow of F2 also AsF5 is formed;; |
| Conditions | Yield |
|---|---|
| In sulfuric acid on heating mixture of As2O3, CaF2 and concd. H2SO4;; |
Arsenous trifluoride Consensus Reports
Reported in EPA TSCA Inventory. Arsenic and its compounds are on the Community Right-To-Know List.
Arsenous trifluoride Standards and Recommendations
OSHA PEL: TWA 0.01 mg(As)/m3; Cancer Hazard
ACGIH TLV: TWA 0.01 mg/m3; Confirmed Human Carcinogen; BEI: 35 μ (As)/L inorganic arsenic and methylated metabolites in urine
NIOSH REL: (Arsenic, Inorganic) CL 2 µg(As)/m3/15 M
Arsenous trifluoride Specification
This product is an organic compound with the formula AsF3. The systematic name of this chemical is Arsenous trifluoride. Its EINECS number is 232-060-0. With the CAS registry number 7784-35-2, it is also named as Trifluoroarsine. In addition, the molecular weight is 131.92. It is nonflammable. When encountered heat, water and acid, it will emit poisonous arsenic and fluoride steam. It should be sealed and stored in a cool, ventilated and dry place. Moreover, it should be stored in separate places without alkali, acids and food additives. It is used in the production of arsenic salt, electronic materials, reagents, etc. It is also used as fluorinating non-metal chlorides to fluorides, in this respect it is less reactive than SbF3.
Preparation: this chemical can be prepared by hydrogen fluoride and arsenic trioxide in oil bath. The yield is about 80%. It can also be prepared by arsenic trioxide, calcium fluoride and sulfuric acid.
As2O3 + 6HF → 2AsF3 + 3H2O
As2O3 + 3CaF2 + 3H2SO4 → 2AsF3 + 3CaSO4 + 3H2O
When you are using this chemical, please be cautious about it as the following:
This chemical is toxic by inhalation and if swallowed. When using do not eat, you should not drink or smoke. After contact with skin, you must wash immediately with plenty of ... (to be specified by the manufacturer). In case of accident or if you feel unwell, you need seek medical advice immediately (show the label where possible).
You can still convert the following datas into molecular structure:
(1)SMILES: F[As](F)F
(2)Std. InChI: InChI=1S/AsF3/c2-1(3)4
(3)Std. InChIKey: JCMGUODNZMETBM-UHFFFAOYSA-N
The toxicity data is as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LCLo | inhalation | 2000mg/m3/10M (2000mg/m3) | National Defense Research Committee, Office of Scientific Research and Development, Progress Report.Vol. NDCrc-132, Pg. AUG1942. |
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