Schradan

  • bis(bisdimethylaminophosphonous) anhydride
  • bis(dimethylamino)phosphonous anhydride
  • bis(dimethylamino)phosphoric anhydride
  • bis-N,N,N',N'-Tetramethylphosphorodiamidic anhydride
  • Lethalaire g-59
  • Octamethyl
Formula
C8H24N4O3P2
Structure
Description
Dark brown viscous liquid.
Uses
Acaricide, systemic insecticide.

Registry Numbers and Inventories.
CAS
152-16-9
EC (EINECS/ELINCS)
205-801-0
EC Index Number
015-026-00-8
EC Class
Very toxic
RTECS
UX5950000
RTECS class
Agricultural Chemical and Pesticide; Human Data
UN (DOT)
3018
Merck
12,8540
Beilstein/Gmelin
1801375
Beilstein Reference
4-04-00-00288
RCRA
P085
EPA OPP
58601
Swiss Giftliste 1
G-2867
Canada DSL/NDSL
NDSL
US TSCA
Listed

Properties.
Formula
C8H24N4O3P2
Formula mass
286.25
Melting point, °C
20
Boiling point, °C
82 - 83 (0.001 torr)
Vapor pressure, mmHg
0.001
Density
1.09 g/cm3 (20 C)
Solubility in water
miscible
Refractive index
1.462 (24 C)

Hazards and Protection.
Storage
Keep in well ventilated area.
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
Workers handling and applying organophosphate pesticides must be given personal protective equipment comprising overalls made of a tight fabric or polyvinyl chloride, gloves, and rubber boots. The eyes should be protected by goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Caution : Avoid sources of extreme heat including fire. Diphosphoramide, octamethyl- will liberate toxic phosphorus oxides when heated to decomposition. (Non-Specific -- Organophosphorus Liquid Pesticides) Use water spray to knock down vapors. Attempt to stop leak if it can be done without hazard. Avoid breathing vapors. Keep upwind. Avoid bodily contact with material. Do not handle broken packages without protective equipment. Wash away any material which may have contacted the body with copious amounts of water or soap and water.
Stability
Stable.

Fire.
Fire fighting
(Non-Specific -- Organophosphorus Liquid Pesticides) Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use alcohol foam, carbon dioxide, or dry chemical.
Fire potential
Nonflammable.
Hazards
When heated to decomposition, it can emit highly toxic fumes of oxides of phosphorus. Decomposes when mixed with acid. Hydrolyzed under acid conditions to dimethylamine and orthophosphoric acid.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
2
Exposure effects
Fever, low heart rate and abnormally low blood pressure, or rapid heart rate and elevated blood pressure may occur. Headache, dizziness, muscle spasms and profound weakness are common. Alterations of level of consciousness, anxiety, paralysis, seizures and coma may occur. Seizures may be more common in children.
   Ingestion
Vomiting, hypersalivation, diarrhea, fecal incontinence and abdominal pain may occur.
   Inhalation
Dyspnea, rales, bronchorrhea, bronchospasm, or tachypnea may be noted. Noncardiogenic pulmonary edema may occur in severe cases. Chemical pneumonitis may be seen.
   Skin
Sweating is a consistent but not universal sign.
   Eyes
Constriction of the pupil, tearing, and blurred vision are common. Prolonged dialation of the pupils may occur in severe poisonings. Opsoclonus has been reported in one case. Salivation commonly occurs.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
3018
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
USCG CHRIS Code
OPP