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1929-82-4

Name Nitrapyrin
CAS 1929-82-4
EINECS(EC#) 217-682-2
Molecular Formula C6H3Cl4N
MDL Number MFCD00072500
Molecular Weight 230.91
MOL File 1929-82-4.mol
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Chemical Properties

Appearance Crystals.
Melting point  62-63°C
Boiling point  136-138°C
density  1.8732 (rough estimate)
vapor pressure  2.8 x 10-3 mmHg at 20 °C (quoted, Verschueren, 1983)
refractive index  1.6000 (estimate)
Fp  100 °C
storage temp.  0-6°C
solubility  Soluble in 10 mg/ml ethanol.
form  Powder
pka -3.75±0.10(Predicted)
color  White
Specific Gravity 1.579 (25℃)
Water Solubility  Insoluble. <0.01 g/100 mL at 18 ºC
Merck  14,6574
BRN  1618997
Henry's Law Constant 2.13 x 10-3 atm?m3/mol (approximate - calculated from water solubility and vapor pressure)
Exposure limits NIOSH REL: 10 mg/m3, STEL 20 mg/m3 (total), 5 mg/m3 (respirable fraction); OSHA PEL: 15 mg/m3 (total), 5 mg/m3 (respirable fraction); ACGIH TLV: TWA 10 mg/m3.
InChIKey DCUJJWWUNKIJPH-UHFFFAOYSA-N
LogP 3.325-3.41 at 23.5℃
CAS DataBase Reference 1929-82-4(CAS DataBase Reference)
NIST Chemistry Reference Pyridine, 2-chloro-6-(trichloromethyl)-(1929-82-4)
EPA Substance Registry System 1929-82-4(EPA Substance)
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Safety Data

Hazard Codes  Xn;N,Xi,N,Xn
Risk Statements 
R22:Harmful if swallowed.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S24:Avoid contact with skin .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S37/39:Wear suitable gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RIDADR  UN 2811
WGK Germany  2
RTECS  US7525000
TSCA  Yes
HazardClass  6.1(b)
PackingGroup  III
HS Code  29333990
Safety Profile
Poison by ingestion. Moderately toxic by skin contact. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits very toxic fumes of Cland NOx.
Toxicity
LC50 for channel catfish 5.8 mg/L (Worthing and Hance, 1991); acute oral LD50 for rats 1,230 mg/kg (Verschueren, 1983), 940 mg/kg (RTECS, 1985).

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