Paraquat bis(methyl sulfate)

  • 1,1'-Dimethyl-4,4'-bipyridynium dimethylsulfate
  • 1',1'-Dimethyl-4,4'-dipyridinium di(methyl sulfate)
  • Gramoxone methyl sulfate
  • 4,4'-Bipyridinium, 1,1'-dimethyl-, bis(methyl sulfate)
  • Paraquat dimethyl sulfate
Formula
C12H14N2.CH3SO4
Structure
Description
White crystalline solid or yellow solid.
Uses
Herbicide

Registry Numbers and Inventories.
CAS
2074-50-2
EC (EINECS/ELINCS)
218-196-3
EC Index Number
613-090-00-7
EC Class
Very toxic; Toxic; Irritant; Dangerous for the Environment
RTECS
DW2010000
RTECS class
Agricultural Chemical and Pesticide
Beilstein/Gmelin
5844061
EPA OPP
61602
Japan ENCS (MITI)
Listed

Properties.
Formula
C12H14N2 . CH3O4S
Formula mass
297.36

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Respirators
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Small spills/leaks
(Non-Specific -- Pesticide, Solid, n.o.s.) Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind; keep out of low areas. Do not touch spilled material; stop leak if you can do so without risk. Small spills: absorb with sand or other noncombustible absorbent material and place into containers for later disposal. Small dry spills: with clean shovel place material into clean, dry container and cover; move containers from spill area. Large spills: dike far ahead of spill for later disposal.
Stability
No data.

Fire.
Fire fighting
(Non-Specific -- Pesticide, Solid, n.o.s.) Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind; keep out of low areas. Wear self-contained (positive pressure if available) breathing apparatus and full protective clothing. Move container from fire area if you can do so without risk.Not combustible. (Non-Specific -- Pesticide, Solid, n.o.s.) Extinguish with dry chemical, carbon dioxide, water spray, fog, or foam.
Hazards
When heated to decomposition, it emits very toxic fumes of sulfur oxides and nitrogen oxides. Avoid strong oxidizers.

Health.
Exposure effects
   Ingestion
See inhalation.
   Inhalation
It can cause death by shock and/or pulmonary damage. The fatal dose is estimated to be 6 grams of paraquat ion. Exposure may cause renal tubular damage and liver dysfunction.
   Skin
See inhalation.
   Eyes
See inhalation

First aid
 
   Ingestion
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
   Inhalation
If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
   Skin
Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.
   Eyes
If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.

Transport.
USCG CHRIS Code
PQM