Ammonium oxalate monohydrate Property

Melting point:

133 °C (dec.)(lit.)

Boiling point:

259.65°C (rough estimate)

Density 

1.5

refractive index 

1.4500 (estimate)

storage temp. 

Store at +5°C to +30°C.

solubility 

H₂O: 0.1 M at 20 °C, clear, colorless

form 

Solid

Specific Gravity

1.5

color 

White

PH

6.0-7.0 (25℃, 0.1M in H2O)

Odor

Odorless

PH Range

6.4 (0.1 molar solution)

Water Solubility 

45 g/L (20 ºC)

Merck 

14,537

BRN 

3759830

Stability:

Stable. Incompatible with strong acids.

LogP

-1.193 (est)

CAS DataBase Reference

6009-70-7(CAS DataBase Reference)

EPA Substance Registry System

Diammonium oxalate monohydrate (6009-70-7)

Safety

Hazard Codes 

Xn

Risk Statements 

21/22

Safety Statements 

24/25

RIDADR 

UN 1759 8/PG 3

WGK Germany 

1

F 

21

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

HS Code 

29171100

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Ammonium oxalate monohydrate Chemical Properties,Usage,Production

Chemical Properties

Ammonium oxalate is an odorless, colorless crystalline material or powder.

Chemical Properties

Ammonium oxalate (NH4)2C204, is a white solid soluble, formed by reaction of NH40H and oxalic acid, and then evaporating. Used as a source of oxalate; ammonium binoxalate NH4HC204·H20.

Uses

Used for the detection of calcium, lead, fluoride and a buffering agent

Uses

Ammonium oxalate monohydrate can be used to study chelators, biological buffers and biochemicals and reagents. It has been used for the detection and determination of calcium, lead, fluoride, and rare earth metals. It is employed as chelators and forms complexes with metals. It acts as reducing agent in gold extraction and is an active ingredient of ferrous metal surface polishing fluid. It is a promoting agent in production of cobalt oxide and nickel oxide. It has been used in an analysis of the effective segregation coefficient keff of different impurities, which suggested that the dehydration energies of cations mainly determine the capability of capture of impurity species by the growing crystal. It is widely utilized as a buffering reagent and a dispersant to determine the surface interaction of platelets. Ammonium oxalate monohydrate is also a buffering reagent and a dispersant to determine the surface interaction of platelets and to investigate the formation of oxalate monoalkylamide in the human lens. Ammonium oxalate monohydrate has also been used to study its acute poisoning effect on sheep, and surely has many additional uses.

Uses

Ammonium oxalate monohydrate is widely utilized as a buffering reagent and a dispersant to determine the surface interaction of platelets. It finds an application to study its acute poisoning effect on sheep and to investigate the formation of oxalate monoalkylamide in the human lens. It is also used in the detection and determination of calcium, lead, fluoride and rare earth metals. It is employed as chelators and forms complexes with metals. It acts as reducing agent in gold extraction and is an active ingredient of ferrous metal surface polishing fluid. It is a promoting agent in production of cobalt oxide and nickel oxide.

General Description

Ammonium oxalate monohydrate is a diammonium salt of oxalic acid. Its refined crystal structure has been investigated by three-dimensional diffraction studies. Influence of bivalent [Mn(II), Co(II), Ni(II)] and trivalent cations [Fe(III), Cr(III)] impurities on the growth rates of ammonium oxalate monohydrate crystals has been described. Its space group and unit cell parameters have been analyzed by neutron diffraction studies. Its IR spectra have been compared with that of isolated coal-solubilizing agent (CSA).

Potential Exposure

It is used in chemical analysis and to make blueprint paper, explosives; a rust-removal ingredient in metal polishes.

Shipping

UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN1759 Corrosive solids, n.o.s., Hazard class: 8; Labels: 8-Corrosive material, Technical Name Required.

Purification Methods

Crystallise it from water (10mL/g) at 50o. [Beilstein 2 IV 1846.]

Incompatibilities

Ammonium oxalate is a reducing agent and also reacts as a base to neutralize acids and reacts with oxidizers generating carbon dioxide. Incompatible with oxidizers (chlorates, hypochlorite solutions, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.