Ammonium oxalate

124.1

124.048409

214-202-3

0PB8MO5U0H

1036

1759|2811

2923900090

82.3

Ammonium oxalate is an odorless solid. Sinks and mixes slowly with water. (USCG, 1999)

1.50 g/cm³

365.1°C at 760 mmHg

188.8ºC

H2O: soluble

Reference value: peritoneal-mouse LD50: 155 mg/kg

Flammable; burning produces toxic nitrogen oxides and ammonia fumes

HEAT OF SOLN: 101 BTU/LB= 56 CAL/G= 2.3X10+5 J/KG /MONOHYDRATE/|INSOL IN AMMONIA; SOL @ 0 °C 2.54 G/100 CC WATER; SOL @ 50 °C 11.8 G/100 CC WATER; INDEX OF REFRACTION: 1.439, 1.546, 1.594; MP: DECOMP /MONOHYDRATE/

Water soluble.

Salts, Acidic

AMMONIUM OXALATE can act as a reducing agent in reactions that generate carbon dioxide. Reacts within a few seconds with solutions of sodium hypochlorite [Mellor 2 Supp. 1:550 1956].

Dust explosion possible if in powder or granular form, mixed with air.

UN 1759 8/PG 3

1

21/22

24/25

RO2750000

Xn

Warehouse ventilated, low temperature and dry

P260, P261, P264, P270, P271, P280, P302+P352, P304+P340, P305+P351+P338, P309+P311, P312, P314, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501

H315

Special Hazards of Combustion Products: Toxic oxides of nitrogen may form in fire. (USCG, 1999)|Combustible. Gives off irritating or toxic fumes (or gases) in a fire.

|Warning|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|P264, P270, P280, P301+P312, P302+P352, P305+P351+P338, P312, P322, P330, P337+P313, P363, and P501|Aggregated GHS information provided by 122 companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|P264, P270, P280, P301+P312, P302+P352, P312, P322, P330, P363, and P501|Aggregated GHS information provided by 152 companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|Aggregated GHS information provided by 3 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|Danger|H302: Harmful if swallowed [Warning Acute toxicity, oral]|P260, P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P310, P312, P314, P321, P322, P330, P332+P313, P362, P363, P403+P233, P405, and P501|H315: Causes skin irritation [Warning Skin corrosion/irritation]|P260, P261, P264, P270, P271, P280, P302+P352, P304+P340, P305+P351+P338, P309+P311, P312, P314, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501

Fire Extinguishing Agents: Water, foam (USCG, 1999)|Use water spray, powder, foam, carbon dioxide.

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. (ERG, 2016)

Approved dust respirator; rubber or plastic-coated gloves; chemical goggles (USCG, 1999)|APPROVED DUST RESPIRATOR; RUBBER OR PLASTIC-COATED GLOVES; CHEMICAL GOGGLES.

CONTACT WITH EYES CAUSES IRRITATION. CONTACT WITH SKIN CAUSES IRRITATION OR SEVERE BURNS. /MONOHYDRATE/

Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.

Separated from food and feedstuffs and oxidants. Dry.

Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.

The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the kidneys and calcium balance after ingestion. This may result in impaired functions. Exposure to high concentrations could cause death.

The substance may have effects on the kidneys.

NO open flames.

PREVENT DISPERSION OF DUST!

Use local exhaust or breathing protection.

Protective gloves. Protective clothing.

Wear safety goggles or eye protection in combination with breathing protection.

highly toxic

Materials that add an electron to an element or compound, that is, decrease the positiveness of its valence. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) (See all compounds classified as Reducing Agents.)

OXALATES ARE WELL ABSORBED FROM THE INTESTINE. /THEY ARE/...NOT BURNED IN THE BODY, BUT UNITE WITH TISSUE & BLOOD CALCIUM & ARE EXCRETED BY THE KIDNEY. /OXALATES/

Ingestion or excessive inhalation of dust causes systemic poisoning; possible symptoms include pain in throat, esophagus, and stomach; mucous membranes turn white; vomiting, severe purging, weak pulse, cardiovascular collapse, neuromuscular symptoms. Contact with eyes causes irritation. Contact with skin causes irritation or severe burns. (USCG, 1999)

Speed is essential. INHALATION: remove to fresh air. INGESTION: call physician immediately; induce vomiting. EYES: flush with water and seek medical attention. SKIN: flush with water. OTHER: watch for swelling of the glottis and delayed constriction of the esophagus. (USCG, 1999)

Fresh air, rest. Seek medical attention if you feel unwell.

Remove contaminated clothes. Rinse and then wash skin with water and soap.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

SYMPTOMATOLOGY: 1. BURNING PAIN IN THROAT, ESOPHAGUS, & STOMACH. EXPOSED AREAS OF MUCOUS MEMBRANE TURN ALMOST IMMEDIATELY AN OPAQUE WHITE...NO CORROSIVE ACTIONS ON LIPS & FACE. 2. VOMITING (OFTEN BLOODY OR WITH A COFFEE GROUND APPEARANCE), INTENSE BURNING PAIN, SEVERE PURGING. 3. PULSE BECOMES WEAK, IRREGULAR, & SOMETIMES IMPERCEPTIBLE. HYPOTENSION & USUAL SIGNS OF CARDIOVASCULAR COLLAPSE APPEAR. 4. IF DEATH IS DELAYED FOR A FEW HR, NERVOUS OR NEUROMUSCULAR SYMPTOMS DEVELOP: HEADACHE, MUSCLE CRAMPS...TETANY, SOMETIMES CONVULSIONS, STUPOR, COMA, & DEATH. 5. RENAL DAMAGE, AS EVIDENCED BY OLIGURIA. ALBUMINURIA, & HEMATURIA MAY PERSIST FOR WK. /OXALATE/|INGESTION OR EXCESSIVE INHALATION OF DUST CAUSES SYSTEMIC POISONING; POSSIBLE SYMPTOMS INCLUDE PAIN IN THROAT, ESOPHAGUS, & STOMACH; MUCOUS MEMBRANES TURN WHITE; VOMITING, SEVERE PURGING, WEAK PULSE, CARDIOVASCULAR COLLAPSE, NEUROMUSCULAR SYMPTOMS. /MONOHYDRATE/|IF...A LARGE ENOUGH QUANTITY OF OXALATE IS INGESTED SOME OF IT WILL BE ABSORBED UNCHANGED & THUS LEAD TO OXALATE POISONING. /OXALIC ACID/

Acid, Oxalic

Cough. Sore throat.

Redness. Burning sensation. Pain.

Redness. Pain. Burns.

GRADES OR PURITY: PURE, 98-100.5% /MONOHYDRATE/|COMMERCIAL PRODUCT IS 98-99% PURE. /MONOHYDRATE/

Ethanedioic acid, ammonium salt (1:2): ACTIVE|Comparison of 10 techniques for metal & substrate extractions among the sediments of 19 estuaries from south and west England (UK) indicate substrate characterization is best accomplished by iron and manganese extractions with acid ammonium oxalate.|Aerobic sewage sludges from Winder and Norcross, Georgia (USA), were subjected to chemical fractionation to study the distribution of sludge-borne zinc and IR spectroscopic analysis to investigate the water-soluble & insoluble light (less than 2 g/cu m) organic components. Sequential chem fractionation indicated that the 2 sludges probably contained different kinds of zinc compounds. Sodium hypochlorite plus ammonium acetate and acid ammonium oxalate (darkness) extracted a greater percentage of the total zinc in both Winder sludges. A comparable percentage of the total zinc in both sludges was extracted by acid ammonium oxalate (UV). Incorporation of sludge into soil and exposure to the soil environment for 2 yr (weathering or aging) caused considerable changes in the chemical extractability of the sludge zinc.|To clarify the mechanism of heavy metal (Pb, Cd, Zn, Mn, & Fe) pollution in bottom sediments, water pollutants were analyzed & the relationship between water flow & concn of heavy metals in sediments was discussed. The partitioning rate of heavy metals extracted by 0.2 M ammonium oxalate was greater than 20%, except for cadmium.

OXALIC ACID DETERMINED BY PERMANGANATE TITRATION AND ATOMIC ABSORPTION. /OXALIC ACID/