NORFLURAZON Chemical Properties

Melting point:

184℃

Boiling point:

345.2±52.0 °C(Predicted)

Density 

1.4395 (estimate)

storage temp. 

0-6°C

solubility 

Chloroform (Slightly), Methanol (Slightly)

pka

1.11±0.20(Predicted)

form 

Crystalline Solid

color 

White

Water Solubility 

28mg/L(25 ºC)

EPA Substance Registry System

Norflurazon (27314-13-2)

Safety Information

Hazard Codes 

N

Risk Statements 

50

Safety Statements 

61

RIDADR 

UN 3077 9/PG 3

WGK Germany 

3

RTECS 

UR6150000

Hazardous Substances Data

27314-13-2(Hazardous Substances Data)

Toxicity

LD50 orally in rats: 9300 mg/kg (Ummel)

NORFLURAZON Usage And Synthesis

Chemical Properties

White to gray-brown crystalline solid or powder. Odorless.

Uses

Food additive; herbicide.

Uses

Pesticide.

Definition

ChEBI: Norflurazon is a pyridazinone that is pyridazin-3(2H)-one which is substituted at positions 2, 4, and 5 by m-(trifluoromethyl)phenyl, chloro, and methylamino groups, respectively. A pre-emergence herbicide used to control grasses and broad-leafed weeds in a variety of crops. Not approved for use within the European Union. It has a role as a carotenoid biosynthesis inhibitor, a herbicide and an agrochemical. It is a pyridazinone, a member of (trifluoromethyl)benzenes, an organochlorine compound and a secondary amino compound.

General Description

Colorless odorless crystals. Non corrosive. Used as an herbicide.

Reactivity Profile

A trifluoromethyl pyridazinone derivative.

Agricultural Uses

Herbicide: Norflurazon is a selective preemergent herbicide used to control germinating annual grasses, sedges, rushes and broadleaf weeds in fruits (cranberries, citrus, cherries, nectarines, apricots), grape vines, vegetables, nuts, cotton, peanuts, soybeans, and various nonagricultural and industrial areas. Forbidden for use in the EU after 7/25/2003. Registered for use in the U.S. Manufactured in the US by Clariant Corporation, North Carolina.

Trade name

EVITAL®; H 9789®; SAN 9789 H®; SAN 97895®; SOLICAM®; TELOK®[C]; TRIETHANOLAMINE DBS®; ZORIAL®

Safety Profile

When heated to decomposition emits toxic fumes of NOx, F-, and Cl-.

Potential Exposure

Norflurazon is a pyridazinone selective pre-emergent herbicide used to control germinating annual grasses, sedges, rushes and broadleaf weeds in fruits (cranberries, citrus, cherries, nectarines, apricots), grape vines, vegetables, nuts, cotton, peanuts, soybeans, and various nonagricultural and industrial areas. Forbidden for use in the EU after 7/25/2003. Manufactured in the United States by Clariant Corporation, North Carolina.

Shipping

UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard Class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.

Incompatibilities

rapidly degraded by strong light; UV. Incompatible with oxidizers, chlorates nitrates, peroxides.

Waste Disposal

It is the responsibility of chemical waste generators to determine the toxicity and physical properties and of a discarded chemical and to properly identify its classification and certification as a hazardous waste and to determine the disposal method. United States Environmental Protection Agency guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult and follow all regional, national, state and local hazardous waste laws to ensure complete and accurate classification and disposal methods. Follow recommendations for the disposal of pesticides and pesticide containers. Containers must be disposed of properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.

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