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nessler's reagent

Names

[ CAS No. ]:
7783-33-7

[ Name ]:
nessler's reagent

[Synonym ]:
Potassium iodomercurate
Potassium mercuric iodide
Potassium tetraiodomercurate(II)
Nessler reagent
EINECS 231-990-4
Mayer's reagent
Mercury potassium iodide
Nessler's reagent
dipotassium,tetraiodomercury(2-)
MERCURIC POTASSIUM IODIDE
Potassium tetraiodomercurate
Channing's solution
MFCD00049656

Chemical & Physical Properties

[ Density]:
1.16 g/mL at 20 °C

[ Melting Point ]:
120-127 °C(lit.)

[ Molecular Formula ]:
HgI4K2

[ Molecular Weight ]:
786.40400

[ Flash Point ]:
>230 °F

[ Exact Mass ]:
787.51600

[ LogP ]:
3.54030

[ Stability ]:
Stable, but light sensitive. Incompatible with strong oxidizing agents.

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
OU9670000
CHEMICAL NAME :
Mercurate (2-), tetraiodo-, dipotassium
CAS REGISTRY NUMBER :
7783-33-7
LAST UPDATED :
199712
DATA ITEMS CITED :
24
MOLECULAR FORMULA :
Hg-I4.2K
MOLECULAR WEIGHT :
786.39
WISWESSER LINE NOTATION :
KA2 HG-I4

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AEHLAU Archives of Environmental Health. (Heldref Pub., 4000 Albemarle St., NW, Washington, DC 20016) V.1- 1960- Volume(issue)/page/year: 11,201,1965
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
1 gm/kg
REFERENCE :
AEHLAU Archives of Environmental Health. (Heldref Pub., 4000 Albemarle St., NW, Washington, DC 20016) V.1- 1960- Volume(issue)/page/year: 11,201,1965 *** REVIEWS *** ACGIH TLV-TWA 0.01 mg(Hg)/m3; STEL 0.03 mg/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: TLV/BEI,1997 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 0.05 mg(Hg)/m3 DTLWS* "Documentation of the Threshold Limit Values for Substances in Workroom Air," Supplements. For publisher information, see 85INA8. Volume(issue)/page/year: 3,22,1973 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 0.05 mg(Hg)/m3;Skin JAN 1993 OEL-BELGIUM:TWA 0.05 mg(Hg)/m3;Skin JAN 1993 OEL-DENMARK:TWA 0.05 mg(Hg)/m3 JAN 1993 OEL-FINLAND:TWA 0.05 mg(Hg)/m3 JAN 1993 OEL-FRANCE:TWA 0.05 mg(Hg)/m3 JAN 1993 OEL-GERMANY:TWA 0.01 ppm (0.1 mg(Hg)/m3) JAN 1993 OEL-HUNGARY:TWA 0.02 mg(Hg)/m3;STEL 0.04 mg(Hg)/m3 JAN 1993 OEL-JAPAN:TWA 0.05 mg(Hg)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 0.05 mg(Hg)/m3;STEL 0.15 mg(Hg)/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 0.05 mg(Hg)/m3 JAN 1993 OEL-POLAND:TWA 0.01 mg(Hg)/m3 JAN 1993 OEL-RUSSIA:TWA 0.05 mg(Hg)/m3;STEL 0.01 mg(Hg)/m3 JAN 1993 OEL-SWEDEN:TWA 0.05 mg(Hg)/m3 JAN 1993 OEL-THAILAND:STEL 0.05 mg(Hg)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.05 mg(Hg)/m3;STEL 0.15 mg(Hg)/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO MERCURY, ARYL AND INORGANIC-air:CL 0.1 mg/m3 (Sk) REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - T1087 No. of Facilities: 108 (estimated) No. of Industries: 2 No. of Occupations: 2 No. of Employees: 859 (estimated)

Safety Information

[ Symbol ]:

GHS05, GHS06, GHS08, GHS09

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H290-H300 + H310-H314-H331-H373-H410

[ Precautionary Statements ]:
P261-P273-P280-P301 + P310 + P330-P303 + P361 + P353-P305 + P351 + P338

[ Personal Protective Equipment ]:
Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ Hazard Codes ]:
T+:Verytoxic;C:Corrosive;

[ Risk Phrases ]:
R26/27/28;R33;R35

[ Safety Phrases ]:
45-36/37-61-36/37/39-28-26-60-13

[ RIDADR ]:
UN 3287 6.1/PG 3

[ WGK Germany ]:
3

[ RTECS ]:
OU9670000

[ Packaging Group ]:
II

[ Hazard Class ]:
6.1

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