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| CAS No.: | 10326-21-3 |
|---|---|
| Name: | MAGNESIUM CHLORATE |
| Molecular Structure: | |
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|
|
| Formula: | ClH O3 . 1/2 Mg |
| Molecular Weight: | 191.21 |
| Synonyms: | Chloricacid, magnesium salt (8CI,9CI); Magnesium chlorate (6CI); De-fol-ate; E-Z-Off;KhMD 58; MC Defoliant; Magnesium dichlorate; Magron; Ortho MC |
| Density: | g/cm3 |
| Melting Point: | ~35℃ [MER06] |
| Boiling Point: | °Cat760mmHg |
| Flash Point: | °C |
| Solubility: | mol/100mol H2O: 10.73 (0°C), 13.52 (25°C), 26.38 (93°C); solid phase Mg(ClO3)2 · 6H2O (0°C, 25°C), Mg(ClO3)2 · 2H2O (93°C) [KRU93] |
| Hazard Symbols: | Dangerous fire risk in contact with organic materials, strong oxidizing agent. |
| Risk Codes: | R36/37/38 |
| Safety: | Moderately toxic by intraperitoneal route. Mildly toxic by ingestion. Probably an eye, skin, and mucous membrane irritant. Experimental reproductive effects. A defoliant. A powerful oxidizer. Explosive reaction with copper(I) sulfide. Incandescent reaction with antimony(III) sulfide, arsenic(III) sulfide, tin(II) sulfide, tin(IV) sulfide. Incompatible with Al, As, C, charcoal, Cu, MnO2, metal sulfides, dibasic organic acids, organic matter, P, S. When heated to decomposition it emits toxic fumes of Cl−. See also MAGNESIUM COMPOUNDS and CHLORATES. |
| PSA: | 114.40000 |
| LogP: | 0.66620 |
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Chemistry
IUPAC Name: Magnesium dichlorate
Synonyms: Magnesium dichlorate ; Chlorate salt of magnesium ; De-fol-ate
CAS NO: 10326-21-3
Molecular Formula of Magnesium chlorate (CAS NO.10326-21-3) : Cl2MgO6
Molecular Weight of Magnesium chlorate (CAS NO.10326-21-3) :191.21
Molecular Structure of Magnesium chlorate (CAS NO.10326-21-3) : .png)
EINECS: 233-711-1
Mol File: 10326-21-3.mol
White deliquescent crystals or powder
Melting point: 35°C .
Boiling point 120°C (decomposition).
Relative density: 1.80 (25°C ).
Solubility: soluble in water, slightly soluble in alcohol and acetone.
Uses
Magnesium chlorate (CAS NO.10326-21-3) is used for defoliant of the pre-harvest cotton ,ripening agents for wheat, herbicides, desiccants. Also used as pharmaceuticals.
Production
Raw materials Potassium permanganate-->Barium chloride-->Chromate, Ion chromatography standard solution, Specpure, CrO4-2 1000μg/ml
Adding saturated solution of sodium chlorate into liquid transfer device, preheated to 60 ~ 70°C,adding barium chloride solution to remove chromates ,then pouring into the reactor, and add brine block for metathesis. And then add saturated solution of barium chloride and potassium permanganate to remove ferrous salt with brine in the sulfate , filter out sediment, the filtrate evaporated to 116 ~ 123°C, precipitation of a large number of sodium chloride, immediately filtered to remove it, adding filtrate into the mold at about 35°C to isolate unreacted sodium chlorate. The magnesium perchlorate refined liquid 140 ~ 145°C, evaporation, cooling, obtaining Magnesium chlorate (CAS NO.10326-21-3) . Its
2NaC1O3 + MgC12 · 6H2O → Mg (C1O3) 2.6 H2O +2 NaCl
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| guinea pig | LDLo | oral | 1500mg/kg (1500mg/kg) | Meditsinskii Zhurnal Uzbekistana. Vol. (9), Pg. 26, 1959. | |
| mouse | LD50 | oral | 5235mg/kg (5235mg/kg) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 48(4), Pg. 68, 1983. | |
| mouse | LDLo | intratracheal | 500mg/kg (500mg/kg) | Meditsinskii Zhurnal Uzbekistana. Vol. (9), Pg. 26, 1959. | |
| rabbit | LD50 | oral | 8660mg/kg (8660mg/kg) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 48(4), Pg. 68, 1983. | |
| rat | LD50 | oral | 6348mg/kg (6348mg/kg) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 48(4), Pg. 68, 1983. | |
| rat | LDLo | intraperitoneal | 1100mg/kg (1100mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD CARDIAC: OTHER CHANGES LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES | Journal of Pharmacology and Experimental Therapeutics. Vol. 35, Pg. 1, 1929. |
| rat | LDLo | intratracheal | 700mg/kg (700mg/kg) | Meditsinskii Zhurnal Uzbekistana. Vol. (9), Pg. 26, 1959. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Moderately toxic by intraperitoneal route. Mildly toxic by ingestion. Probably an eye, skin, and mucous membrane irritant. Experimental reproductive effects. A defoliant. A powerful oxidizer. Explosive reaction with copper(I) sulfide. Incandescent reaction with antimony(III) sulfide, arsenic(III) sulfide, tin(II) sulfide, tin(IV) sulfide. Incompatible with Al, As, C, charcoal, Cu, MnO2, metal sulfides, dibasic organic acids, organic matter, P, S. When heated to decomposition it emits toxic fumes of Cl−. See also MAGNESIUM COMPOUNDS and CHLORATES.
RIDADR 2723
HazardClass 5.1
PackingGroup II
Standards and Recommendations
DOT Classification: 5.1; Label: Oxidizer
Specification
1.General Description :Soluble in water and denser than water. Poses a dangerous fire risk when in contact with organic materials or heat. May be irritating to skin, eyes and mucous membranes. Used to make other chemicals.
2.Air & Water Reactions: Soluble in water.
3.Reactivity Profile : Magnesium chlorate is a powerful oxidizer. Explosive reaction with copper(I) sulfide. Incandescent reaction with antimony(III) sulfide, arsenic(III) sulfide, tin(II) sulfide, tin(IV) sulfide. Incompatible with Al, As, C, Cu, MnO2, organic matter, organic acids, P and S . Mixtures with ammonium salts, with powdered metals, silicon, sulfur, or sulfides are readily ignited and potentially explosive. A combination of finely divided aluminum and Magnesium chlorate can explode by heat, percussion, or friction .
4.Health Hazard :Inhalation, ingestion or contact (skin, eyes) with vapors or substance may cause severe injury, burns or death. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause pollution.
5.Fire Hazard :These substances will accelerate burning when involved in a fire. Some may decompose explosively when heated or involved in a fire. May explode from heat or contamination. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard.