Nitrapyrin CAS NO.1929-82-4

Product Name: Nitrapyrin

Synonyms: NITRAPYRIN;N-SERVE;IFLAB-BB F0848-0285;2-chloro-6-(trichloromethyl);2-chloro-6-(trichloromethyl)-pyridin;2-Chloro-6-trichloromethyl;2-Picoline, alpha,alpha,alpha,6-tetrachloro-;chloro-2-trichloromethylepyridinique

CAS: 1929-82-4

MF: C6H3Cl4N

MW: 230.91

EINECS: 217-682-2

Product Categories: -;Organics;Pyridine;Building Blocks;C5 to C6;C6 to C7;Chemical Synthesis;Halogenated Heterocycles;Heterocyclic Building Blocks;Pyridines;Pesticides intermediate

Mol File: 1929-82-4.mol

Nitrapyrin Structure

Nitrapyrin Chemical Properties

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

Specific Gravity 1.579 (25℃)

color White

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

CAS DataBase Reference 1929-82-4(CAS DataBase Reference)

NIST Chemistry Reference Pyridine, 2-chloro-6-(trichloromethyl)-(1929-82-4)

EPA Substance Registry System Pyridine, 2-chloro-6-(trichloromethyl)- (1929-82-4)

Safety Information

Hazard Codes Xn;N,Xi,N,Xn

Risk Statements 22-51/53-36/37/38

Safety Statements 24-61-37/39-26

RIDADR UN 2811

WGK Germany 2

RTECS US7525000

TSCA Yes

HazardClass 6.1(b)

PackingGroup III

HS Code 29333990

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).

MSDS Information

Provider Language

2-Chloro-6-(trichloromethyl)pyridine English

Nitrapyrin Usage And Synthesis

Chemical Properties Crystals.

Physical properties Colorless to white crystalline solid with a mild, sweet odor

Uses Bactericide used to inhibit Nitrosomonas spp. from oxidizing ammonium ions in soil.

Uses Fertilizer additive to control nitrification and prevent loss of soil nitrogen.

General Description Colorless crystals or off-white crystalline solid.

Air & Water Reactions Insoluble in water.

Reactivity Profile Nitrapyrin is a base. Reacts exothermically with acids.

Hazard Liver damage. Questionable carcinogen.

Fire Hazard Flash point data for Nitrapyrin are not available. Nitrapyrin is probably combustible.

Agricultural Uses Nitrapyrin, also called N serve, is a nitrification inhibitor

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.

Environmental Fate Biological. 6-Chloropicolinic acid and carbon dioxide were reported as biodegradation products (Verschueren, 1983).

Soil. Hydrolyzes in soil to 6-chloropyridine-2-carboxylic acid (Worthing and Hance, 1991).

Photolytic. Photolysis of nitrapyrin in water yielded 6-chloropicolinic acid, 6-hydroxypicolinic acid and an unidentified polar material (Verschueren, 1983).

Chemical/Physical. Emits toxic fumes of nitrogen oxides and chlorides when heated to decomposition (Sax and Lewis, 1987; Lewis, 1990).

 

 

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