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| CAS No.: | 7681-55-2 |
|---|---|
| Name: | Sodium iodate |
| Molecular Structure: | |
|
|
|
| Formula: | INaO3 |
| Molecular Weight: | 197.89 |
| Synonyms: | Iodic acid(HIO3), sodium salt (8CI,9CI);Sodium iodate (6CI);Sodium iodate (NaIO3);Sodium iodate; |
| EINECS: | 231-672-5 |
| Density: | 4.28 g/mL at 25 °C(lit.) |
| Melting Point: | decomposes [STR93] |
| Solubility: | 0.1 M at 20 °C, clear, colorless in water |
| Appearance: | white crystalline powder |
| Hazard Symbols: |
 O,  Xn
|
| Risk Codes: | 8-22-42/43-36/37/38 |
| Safety: | 17-22-36/37-45-37/39-26 |
| Transport Information: | UN 1479 5.1/PG 2 |
| PSA: | 57.20000 |
| LogP: | 0.52930 |
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Chemistry
IUPAC Name: Sodium iodate
Synonyms of Sodium iodate (CAS NO.7681-55-2): Iodicacid(HIO3),sodiumsalt;Iodicacid(HIO3)sodiumsalt ; Iodicacid,sodiumsalt ; Natriumjodat;sodiumiodate(naio3) ; Sodium iodate ; Sodiumiodatewhitepowder ; Sodium iodate , 99.5+%
CAS NO: 7681-55-2
Molecular Structure: 
Molecular Formula of Sodium iodate (CAS NO.7681-55-2): INaO3
Molecular Weight: 197.89
EINECS : 231-672-5
Mol File: 7681-55-2.mol
Density of Sodium iodate (CAS NO.7681-55-2): 4.28 g/mL at 25 °C
Solubility: H2O: 0.1 M at 20 °C, clear, colorless
Appearance: white crystalline powder
Water Solubility: soluble
Merck: 14,8630
Stability: Stable. Strong oxidizer. Incompatible with finely powdered metals, arsenic, carbon, phosphorus, sulphur, metal cyanides, thiocyanates, impure manganese dioxide, sulphuric acid. May decompose on exposure to light, air or moisture. Heat and shock sensitive.
Product Categories: Inorganics;Inorganic Salts;Synthetic Reagents;Analytical Reagents for General Use;Puriss p.a.;Q-S, Puriss p.a.
Uses
Sodium iodate (CAS NO.7681-55-2) is used for the medicine, antiseptic disinfectant, analysis of reagents and oxidants.
Production
Preparation
It can be prepared by reacting a sodium-containing base such as sodium hydroxide with iodic acid, for example:
HIO3 + NaOH → NaIO3 + H2O
It can also be prepared by adding iodine to a hot, concentrated solution of sodium hydroxide or its carbonate:
3 I2 + 6 NaOH → NaIO3 + 5 NaI + 3 H2O
Reactions
Sodium iodate can be oxidized to sodium periodate in water solutions by hypochlorites or other strong oxidizing agents:
NaIO3 + NaOCl → NaIO4 + NaCl
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| dog | LDLo | intravenous | 200mg/kg (200mg/kg) | "Handbook of Toxicology," 4 vols., Philadelphia, W.B. Saunders Co., 1956-59Vol. 1, Pg. 274, 1955. | |
| mouse | LD50 | intraperitoneal | 119mg/kg (119mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: EXCITEMENT LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES | Journal of Pharmacology and Experimental Therapeutics. Vol. 120, Pg. 171, 1957. |
| mouse | LD50 | intravenous | 108mg/kg (108mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES BEHAVIORAL: EXCITEMENT | Journal of Pharmacology and Experimental Therapeutics. Vol. 120, Pg. 171, 1957. |
| mouse | LD50 | oral | 505mg/kg (505mg/kg) | BEHAVIORAL: FOOD INTAKE (ANIMAL) | Journal of Pharmacology and Experimental Therapeutics. Vol. 120, Pg. 171, 1957. |
| rabbit | LDLo | intravenous | 75mg/kg (75mg/kg) | PERIPHERAL NERVE AND SENSATION: SPASTIC PARALYSIS WITH OR WITHOUT SENSORY CHANGE BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD KIDNEY, URETER, AND BLADDER: PROTEINURIS | Journal of Pharmacology and Experimental Therapeutics. Vol. 40, Pg. 451, 1930. |
Safety Profile
Hazard Codes : O.gif){kind=small}
,Xn .gif){kind=small}
Risk Statements 8-22-42/43-36/37/38
8: Contact with combustible material may cause fire
22: Harmful if swallowed
36/37/38: Sodium iodate (CAS NO.7681-55-2) is irritating to eyes, respiratory system and skin
42/43: May cause sensitization by inhalation and skin contact
Safety Statements 17-22-36/37/39-45-26
17: Keep Sodium iodate (CAS NO.7681-55-2) away from combustible material
22: Do not breathe dust
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
RIDADR UN 1479 5.1/PG 2
WGK Germany 3
RTECS NN1400000
HazardClass 5.1
PackingGroup II
Specification
Chemical properties: white crystalline powder. The relative density of 4.277. Melting point of decomposition. Soluble in water, aqueous solution was neutral. Not soluble in alcohol. Non-flammable. But can spread it. Sodium iodide and aluminum, arsenic, carbon, copper, hydrogen peroxide, metal sulfide, organic matter, phosphorus, potassium, sulfuric acid exposure can cause severe reactions.