NEBURON Property

Melting point:

103℃

Boiling point:

417.3±45.0 °C(Predicted)

Density 

1.3192 (rough estimate)

refractive index 

1.5490 (estimate)

storage temp. 

0-6°C

pka

13.55±0.70(Predicted)

form 

Solid

color 

Off-white

Water Solubility 

4.8mg/L(25 ºC)

BRN 

2733280

EPA Substance Registry System

Neburon (555-37-3)

Safety

Hazard Codes 

Xn

Risk Statements 

22

Safety Statements 

36

WGK Germany 

3

RTECS 

YS3810000

Toxicity

LD50 orally in rats: >11000 mg/kg (Bailey, White)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P501Dispose of contents/container to..…

NEBURON Chemical Properties,Usage,Production

Chemical Properties

Crystalline solid; melts around 102 °C(215.6 °F); practically insoluble in water,48 mg/L at 24 °C (75.2 °F) (Merck 1996);slightly soluble in hydrocarbon solvents.

Uses

Preemergence control of grasses and broad-leaved weeds in peas, beans, lucerne, garlic, beets, cereals, strawberries, ornamentals and forestry.

Uses

Herbicide.

Definition

ChEBI: Neburon is a member of ureas.

Health Hazard

Acute oral toxicity is of very low order;moderately toxic by intravenous route.
LD50 oral (rat): 11,000 mg/kg
LD50 intravenous (mouse): 180 mg/kg.

Environmental Fate

Soil. Neburon undergoes dealkylation of the terminal nitrogen atom, ring hydroxylation and degradation to dichlorodihydroxyaniline (Hartley and Kidd, 1987). Residual activity in soil is limited to approximately 3 to 4 months (Hartley and Kidd, 1987).
Chemical/Physical. Neburon hydrolyzes under basic conditions forming aniline derivatives. The half-life of neburon in 0.50 N sodium hydroxide at 20°C is 167 days (El-Dib and Aly, 1976).