Dithiooxamide

  • Dithiooxalic diamide
  • Dithioxamide
  • Ethanedithioamide
  • Hydrorubeanic acid
  • Rubeanic acid
Formula
NH2CSCSNH2
Structure
Description
Deep red powder.
Uses
Reagent for the spectrophotometric determination of palladium in the presence of piperidine, quinoline, a-picoline and collidine.

Registry Numbers and Inventories.
CAS
79-40-3
EC (EINECS/ELINCS)
201-203-9
22 36/37/38
RTECS
RP1575000
RTECS class
Agricultural Chemical and Pesticide
Merck
12,8436
Beilstein/Gmelin
605577
Beilstein Reference
4-02-00-01596
Swiss Giftliste 1
G-9324
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed

Properties.
Formula
C2H4N2S2
Formula mass
120.2
Melting point, °C
240
Vapor pressure, mmHg
0.02 (25 C)
Density
1.66 g/cm3
Solubility in water
0.25 g/l (20 C)
pKa/pKb
11.33 (pKa)
Partition coefficient, pKow
-0.71
Heat of vaporization
48.9 kJ/mol
Heat of combustion
-2542 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed.
Protection
Wear respirator, chemical safety goggles, rubber boots, and heavy rubber gloves.
Respirators
Government approved respirator.
Small spills/leaks
Evacuate area. Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide, Nitrogen oxides, Sulfur oxides.

Fire.
Flash Point,°C
106
Fire fighting
Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes. Extinguish using Carbon dioxide, dry chemical powder, or appropriate foam.
Hazards
Emits toxic fumes under fire conditions.
Health
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
3
Exposure effects
Properties of this material have not yet been prepared. Any recommendations are of a general nature. Many chemicals cause irritation of the eyes, skin, and respiratory tract. In severe cases respiratory tract irritation can progress to ARDS/acute lung injury which may be delayed in onset for up to 24 to 72 hours in some cases Irritation or burns of the esophagus or gastrointestinal tract are also possible if caustic or irritant chemicals are ingested. ALWAYS contact your local poision control authority or medical professional for assistance.
   Ingestion
Harmful if swallowed.
   Inhalation
May be harmful if inhaled. Material is irritating to mucous membranes and upper respiratory tract.
   Skin
Causes skin irritation. May be harmful if absorbed through the skin.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of skin contact, flush with copious amounts of water for at least 15 minutes. Remove contaminated clothing and shoes. Call a physician.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.
HS Code
2930 90 70