|CAS #: 3689-24-5||Thiodiphosphoric acid tetraethyl ester
Tetraethyl dithiopyrophosphate (TEDP)
| UN #: 1704
| EINECS #: 222-995-2
|ACUTE HAZARDS||PREVENTION||FIRE FIGHTING|
|FIRE & EXPLOSION||Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Risk of fire and explosion as a result of decomposition when heated.||NO open flames.||Use water spray, foam, powder, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.|
|STRICT HYGIENE! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN! IN ALL CASES CONSULT A DOCTOR!|
|SYMPTOMS||ACUTE HAZARDS||FIRST AID|
|Inhalation||Blue lips, fingernails and skin. Dizziness. Drowsiness. Headache. Pupillary constriction, muscle cramp, excessive salivation. Sweating. Laboured breathing. Nausea. Convulsions. Unconsciousness. Weakness. See Ingestion.||Use ventilation, local exhaust or breathing protection.||Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.|
|Skin||MAY BE ABSORBED! Redness. Further see Inhalation.||Protective gloves. Protective clothing.||Rinse and then wash skin with water and soap. Refer for medical attention .|
|Eyes||Redness. Pain. Pupillary constriction.||Wear face shield or eye protection in combination with breathing protection.|
|Ingestion||Abdominal cramps. Confusion. Diarrhoea. Vomiting. Further see Inhalation.||Do not eat, drink, or smoke during work. Wash hands before eating.||Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention .|
|SPILLAGE DISPOSAL||CLASSIFICATION & LABELLING|
|Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent. Then store and dispose of according to local regulations. Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment.||
According to UN GHS Criteria
|Dry. Well closed. Separated from strong oxidants and food and feedstuffs. Keep in a well-ventilated room. Do NOT store or transport in containers made from metal. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.|
|Do not transport with food and feedstuffs.
|PHYSICAL & CHEMICAL INFORMATION|
Physical State; Appearance
Formula: C8H20O5P2S2 / (C2H5O)2P(S)OP(S)(OC2H5)2
|EXPOSURE & HEALTH EFFECTS|
Routes of exposure
Effects of short-term exposure
Effects of long-term or repeated exposure
|Occupational exposure limits|
TLV: 0.1 mg/m3, ppm, as TWA; (skin); A4 (not classifiable as a human carcinogen); BEI issued.
MAK: 0.13 mg/m3, 0.01 ppm; peak limitation category: II(2); skin absorption (H); pregnancy risk group: C.
EU-OEL: 0.1 mg/m3 as TWA; (skin)
|The substance is very toxic to aquatic organisms. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal.|
|Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Technical grade is a dark-coloured liquid, boiling point 131-132°C at 0.267 kPa.
Do NOT take working clothes home.
Symbol: T+, N; R: 27/28-50/53; S: (1/2)-23-28-36/37-45-60-61
See Also: Toxicological Abbreviations