Vanadic acid, ammonium salt

  • Ammonium vanadate
  • Ammonium vanadium oxide
Formula
NH4VO3
Structure
Description
Orange powder.
Uses
Mandelin's reagent (0.5 G ammonium vanadate in 54 ml h2so4) is used as a spray color revealing device in analytical toxicology of drugs.

Registry Numbers and Inventories.
CAS
11115-67-6
EC (EINECS/ELINCS)
234-351-8
RTECS
BT5140000
RTECS class
Mutagen
UN (DOT)
3285
Beilstein/Gmelin
6422 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Korea ECL
Listed

Properties.
Formula
H4NO3V
Formula mass
116.98
Density
2.304 g/cm3 (25 C)
Solubility in water
slightly soluble
Refractive index
1.708

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
Wear appropriate personal protective clothing to prevent skin contact. Wear appropriate eye protection to prevent eye contact.
Respirators
Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive pressure-mode. <BR>Escape from suddenly occurring respiratory hazards: Respirators for escape purposes only: any air-purifying, full-facepiece respirator with a high-efficiency particulate filter. Any appropriate escape-type, self-contained breathing apparatus.
Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
No data.
Incompatibilities
Lithium, chlorine trifluoride vanadium dust, vanadium fume)

Fire.
Fire fighting
Use method most appropriate to fight surrounding fire.
Fire potential
Non-Combustible
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure limit(s)
IDHL: 35 mg/m3
Exposure effects
CNS depression may occur, usually with fatal doses. Sensorimotor hemiparesis and aphasia developed shortly after ingestion of ammonium metavanadate. CNS manifestations include tremors, headaches, tinnitus, and changes in mental status.
   Ingestion
Abdominal cramping, diarrhea, black stools, and green tongue developed in volunteers given ammonium vanadyl tartrate.
   Inhalation
Pulmonary irritation leading to pulmonary edema is a possible effect with high concentrations. Occupational asthma has been reported.
   Skin
Dermatitis, and green discoloration of the skin, may be seen with exposure to vanadium compounds.
   Eyes
See Inhalation.

First aid
 
   Ingestion
Administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents. Chelation - the level at which chelation is necessary is uncertain, especially since systemic symptoms have been rare even in the presence of an excessive body burden. Two chelators have been investigated for vanadium; edta and bal.
   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 and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   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.

Transport.
UN number
3285
Response guide
Hazard class
6.1
Packing Group
I; II; III