Arsonic acid, methyl-,disodium salt (9CI)
Names
[ CAS No. ]:
144-21-8
[ Name ]:
Arsonic acid, methyl-,disodium salt (9CI)
[Synonym ]:
Disomear
Metharsan
EINECS 205-620-7
disodium,methyl-dioxido-oxo-λ<sup>5</sup>-arsane
methylarsonic acid disodium salt
MFCD00072429
Tonarsin
Metharsinat
Stenosine
sodium methylarsonic acid
Diarsen
Arsynal
Dinate
monomethylarsonic acid disodium salt
disodium monomethylarsonate
disodium As-methylarsonate
Arsinyl
disodium methylarsonate
Arrhenal
Chemical & Physical Properties
[ Density]:
1.15
[ Boiling Point ]:
165ºC
[ Melting Point ]:
132-139ºC
[ Molecular Formula ]:
CH3AsNa2O3
[ Molecular Weight ]:
183.93400
[ Exact Mass ]:
183.90900
[ PSA ]:
63.19000
[ Vapour Pressure ]:
8.17E-08mmHg at 25°C
MSDS
Toxicological Information
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- PA2275000
- CHEMICAL NAME :
- Methanearsonic acid, disodium salt
- CAS REGISTRY NUMBER :
- 144-21-8
- LAST UPDATED :
- 199707
- DATA ITEMS CITED :
- 36
- MOLECULAR FORMULA :
- C-H3-As-O3.2Na
- MOLECULAR WEIGHT :
- 183.94
- WISWESSER LINE NOTATION :
- Q-AS-QO&1 &-NA- 2
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 821 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- FAATDF Fundamental and Applied Toxicology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1981- Volume(issue)/page/year: 7,299,1986
- TYPE OF TEST :
- LC50 - Lethal concentration, 50 percent kill
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- >22100 mg/m3/4H
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- FMCHA2 Farm Chemicals Handbook. (Meister Pub., 37841 Euclid Ave., Willoughy, OH 44094) Volume(issue)/page/year: -,C119,1991
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 1150 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- JPIFAN Japan Pesticide Information. (Japan Plant Protection Assoc., 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) No.1-61, 1969-92. For publisher information, see AGJAEP. Volume(issue)/page/year: (3),5,1970
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intraperitoneal
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- >1 gm/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD691-490
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Administration onto the skin
- SPECIES OBSERVED :
- Rodent - rabbit
- DOSE/DURATION :
- 10 gm/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- FMCHA2 Farm Chemicals Handbook. (Meister Pub., 37841 Euclid Ave., Willoughy, OH 44094) Volume(issue)/page/year: -,C119,1991 ** REPRODUCTIVE DATA **
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Intraperitoneal
- DOSE :
- 600 mg/kg
- SEX/DURATION :
- female 9 day(s) after conception
- TOXIC EFFECTS :
- Reproductive - Effects on Embryo or Fetus - other effects to embryo
- REFERENCE :
- TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 25(2),50A,1982
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Intraperitoneal
- DOSE :
- 500 mg/kg
- SEX/DURATION :
- female 12 day(s) after conception
- TOXIC EFFECTS :
- Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Effects on Embryo or Fetus - fetal death
- REFERENCE :
- BECTA6 Bulletin of Environmental Contamination and Toxicology. (Springer-Verlag New York, Inc., Service Center, 44 Hartz Way, Secaucus, NJ 07094) V.1- 1966- Volume(issue)/page/year: 29,679,1982 *** REVIEWS *** TOXICOLOGY REVIEW JORCAI Journal of Organometallic Chemistry. (Elsevier Sequoia SA, POB 851, CH-1001 Lausanne l, Switzerland) V.1- 1963- Volume(issue)/page/year: 76,265,1974 TOXICOLOGY REVIEW 85DHAX "Medical and Biologic Effects of Environmental Pollutants Series," Washington, DC, National Academy of Sciences, 1972-77 Volume(issue)/page/year: As,-,1977 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 MSHA STANDARD-air:TWA 0.5 mg(As)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,16,1971 OSHA PEL (Gen Indu):8H TWA 0.5 mg(As)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 0.5 mg(As)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 0.5 mg(As)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 0.5 mg(As)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-ARAB Republic of Egypt:TWA 0.2 mg(As)/m3 JAN 1993 OEL-AUSTRALIA:TWA 0.05 mg(As)/m3;Carcinogen JAN 1993 OEL-BELGIUM:TWA 0.2 mg(As)/m3 JAN 1993 OEL-DENMARK:TWA 0.05 mg(As)/m3 JAN 1993 OEL-FINLAND;Carcinogen JAN 1993 OEL-FRANCE:TWA 0.2 mg(As)/m3 JAN 1993 OEL-HUNGARY:STEL 0.5 mg(As)/m3;Carcinogen JAN 1993 OEL-INDIA:TWA 0.2 mg(As)/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 0.5 mg(As)/m3 JAN 1993 OEL-POLAND:TWA 0.3 mg(As)/m3 JAN 1993 OEL-SWEDEN:TWA 0.03 mg(As)/m3;Carcinogen JAN 1993 OEL-SWITZERLAND:TWA 0.1 mg(As)/m3;Carcinogen JAN 1993 OEL-THAILAND:TWA 0.5 mg(As)/m3 JAN 1993 OEL-TURKEY:TWA 0.5 mg(As)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.2 mg(As)/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV
Safety Information
[ Hazard Codes ]:
Xn
[ Risk Phrases ]:
R22
[ Safety Phrases ]:
26
[ RIDADR ]:
2759
[ RTECS ]:
PA2275000
[ Packaging Group ]:
III
[ Hazard Class ]:
6.1(b)
[ HS Code ]:
2931900090
Synthetic Route
Customs
[ HS Code ]: 2931900090
[ Summary ]:
2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%