Product Identification

Product Name

3-Isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-one-2,2-dioxide

Synonyms

1H-2,1,3-Benzothiadiazin-4(3H)-one, 3-(1-methylethyl)-, 2,2-dioxide
2,2-Dioxo-3-propan-2-yl-1H-benzo[d][1,2,6]thiadiazin-4-one
3-Isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide
Bendioxide

CAS

25057-89-0

Formula

C10H12N2O3S

Molecular Weight

240.28

EINECS

246-585-8

RTECS

DK9900000

RTECS Class

Agricultural Chemical and Pesticide; Mutagen; Reproductive Effector

Merck

12,1080

Beilstein/Gmelin

530220

EC Index Number

613-012-00-1

EC Class

Harmful; Irritant; Sensitising; Dangerous for the Environment

Physical and Chemical Properties

Appearance

Colorless crystals. Odorless.

Solubility in water

Insoluble

Melting Point

137-139

Boiling Point

357

Vapor Pressure

<0.0001

Density

1.47 g/cm3 (20 C)

pKa/pKb

3.3 (pKa)

Partition Coefficient

2.8

Usage

Substance is used as a herbicide.

First Aid Measures

Ingestion

The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.

Inhalation

Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.

Skin

Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.

Eyes

Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Handling and Storage

Storage

Keep closed in a cool, dry location.

Handling

Do not wear contact lenses. Avoid contact with sking, eyes and clothings.

Hazards Identification

Inhalation

Causes irritation to mucous membranes.

Skin

Irritation. Harmful if absorbed.

Eyes

Redness, pain.

Exposure Controls/Personal Protection

Personal Protection

Goggles, impermeable gloves and apron, protective clothing and boots when handling the undiluted product.

Respirators

OSHA approved respirator.

Exposure Effects

The toxological properties of this substance have not been fully investigated.

Poison Class

4

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.

Accidental Release Measures

Small spills/leaks

Evacuate area. Wear appropriate protective equipment. Ventilate area. Sweep up and place in a appropriate container. Wash contaminated surfaces to remove any residue.

Stability and Reactivity

Stability

Stable at normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

When heated to decomposition it emits very toxic fumes of sulfur oxides and nitrogen oxides.