Name | Benzenearsonic acid |
Synonyms | AI3-16050 HSDB 6381 NSC 15566 BRN 2935741 ai3-16050[qr] Phenylarsonsure Phenylarsonic acid Benzenearsonic acid Arsonicacid,phenyl- Arsonic acid, phenyl- Monophenylarsonic acid arsonicacid,phenyl-[qr] Kyselina benzenarsonova Arsonic acid, As-phenyl- Phenyldihydroxyarsine oxide Kyselina benzenarsonova [Czech] 4-16-00-01183 (Beilstein Handbook Reference) |
CAS | 98-05-5 |
EINECS | 202-631-9 |
InChI | InChI=1/C6H7AsO3/c8-7(9,10)6-4-2-1-3-5-6/h1-5H,(H2,8,9,10) |
Molecular Formula | C6H7AsO3 |
Molar Mass | 202.04 |
Density | 1,76 g/cm3 |
Melting Point | 160 °C |
Boling Point | 66 °C(Press: 1 Torr) |
Flash Point | 232.9°C |
Water Solubility | 31.6g/L(28 ºC) |
Solubility | 3.2% in water and 15.5% in ethanol. |
Vapor Presure | 1.88E-08mmHg at 25°C |
Appearance | Powder |
Specific Gravity | 1.76 |
Color | white |
Merck | 14,1067 |
pKa | pK2: 8.48(+1) (22°C) |
Physical and Chemical Properties | White crystalline powder. Melting point 158-162 ℃ (decomposition), relative density 1.76. 100g28 ℃ water can dissolve 3.3g of the product, 84 ℃ water can dissolve 24g;100g of ethanol can dissolve 15.5g, insoluble in chloroform, stable to oxidant. |
Hazard Symbols | N - Dangerous for the environment![]() T - Toxic ![]() |
Risk Codes | R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R23/25 - Toxic by inhalation and if swallowed. |
Safety Description | S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S60 - This material and its container must be disposed of as hazardous waste. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S28A - S20/21 - |
UN IDs | 3280 |
RTECS | CY3150000 |
TSCA | Yes |
HS Code | 29310099 |
Hazard Class | 6.1 |
Packing Group | III |
Toxicity | LDLo orl-rat: 50 mg/kg JPETAB 93,287,48 |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Use | is used as an analytical reagent. |
production method | is obtained by diazotization of aniline followed by reaction with arsenious acid. |
category | toxic substances |
toxicity grade | highly toxic |
Acute toxicity | oral-rat LD50: 50 mg/kg; Oral-mouse LD50: 0.27 mg/kg |
flammability hazard characteristics | Thermal decomposition toxic arsenide smoke |
storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored and transported separately from food raw materials |
fire extinguishing agent | carbon dioxide, sand, water |
Occupational Standard | TWA 0.2 mg (arsenic)/m3; Tel 0.6 mg (arsenic)/M3 |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |