| Identification | More | 【Name】
Sodium nitrite | 【CAS】
7632-00-0 | 【Synonyms】
NITRITE CONCENTRATE ION STANDARD
NITRITE ION CHROMATOGRAPHY STANDARD
NITRITE SOLUTION
NITRITE STANDARD
NITRITE STANDARD SOLUTION
SODIUM NITRITE
UV-VIS STANDARD 2
UV-VIS STANDARD 2 SODIUM NITRITE
anti-rust
azotynsodowy
diazotizingsalts
dusitansodny
dusitansodny(czech)
erinitrit
filmerine
natriumnitrit
nci-c02084
nitritedesodium
nitritedesodium(french)
nitritosodico | 【EINECS(EC#)】
231-555-9 | 【Molecular Formula】
NNaO2 | 【MDL Number】
MFCD00011118 | 【Molecular Weight】
69 | 【MOL File】
7632-00-0.mol |
| Chemical Properties | Back Directory | 【Appearance】
white to off-white powder | 【mp 】
271 °C(lit.)
| 【bp 】
320 °C
| 【density 】
1.29 g/mL at 25 °C
| 【storage temp. 】
2-8°C
| 【solubility 】
aqueous acid: 1 - 2μl acetic acid per ml H2Osoluble
| 【form 】
powder
| 【Stability:】
Stable. Incompatible with reducing agents, strong oxidizing agents, organics and other flammable materials, finely powdered metals. Contact with combustible material may lead to fire. Hygroscopic. | 【Water Solubility 】
820 g/L (20 ºC) | 【Sensitive 】
Hygroscopic | 【Merck 】
14,8648 | 【CAS DataBase Reference】
7632-00-0(CAS DataBase Reference) | 【EPA Substance Registry System】
7632-00-0(EPA Substance) |
| Safety Data | Back Directory | 【Hazard Codes 】
O,T,N,Xn | 【Risk Statements 】
R8:Contact with combustible material may cause fire.
R25:Toxic if swallowed.
R50:Very Toxic to aquatic organisms.
R22:Harmful if swallowed.
R36/38:Irritating to eyes and skin . | 【Safety Statements 】
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | 【RIDADR 】
UN 3219 5.1/PG 3
| 【WGK Germany 】
3
| 【RTECS 】
RA1225000
| 【F 】
10 | 【HazardClass 】
5.1 | 【PackingGroup 】
III | 【HS Code 】
28341000 | 【Hazardous Substances Data】
7632-00-0(Hazardous Substances Data) |
| Hazard Information | Back Directory | 【General Description】
A yellowish white crystalline solid. Noncombustible but will accelerate the burning of combustible material. If large quantities are involved in a fire or if the combustible material is finely divided, an explosion may result. If contaminated by ammonium compounds, spontaneous decomposition can occur and the resulting heat may ignite surrounding combustible material. Prolonged exposure heat may result in an explosion. Toxic oxides of nitrogen are produced in fires involving this material. Used as a food preservative, and to make other chemicals. | 【Reactivity Profile】
SODIUM NITRITE(7632-00-0) is an oxidizing agent. Mixtures with phosphorus, tin(II) chloride or other reducing agents may react explosively [Bretherick 1979 p. 108-109]. If contaminated by ammonium compounds, spontaneous decomposition can occur and resulting heat may ignite surrounding combustible material. Reacts with acids to form toxic nitrogen dioxide gas. Mixing with liquid ammonia forms dipotassium nitrite, which is very reactive and easily explosive [Mellor 2, Supp. 3:1566 1963]. Melting together wilh an ammonium salt leads to a violent explosion [Von Schwartz 1918 p. 299]. A mixture with potassium cyanide may cause an explosion. Noncombustible but accelerates the burning of all combustible material. If large quantities are involved in fire or if the combustible material is finely divided, an explosion may result. When a little ammonium sulfate is added to fused potassium nitrite, a vigorous reaction occurs attended by flame [Mellor 2:702. 1946-47]. | 【Air & Water Reactions】
Soluble in water. | 【Health Hazard】
Ingestion (or inhalation of excessive amounts of dust) causes rapid drop in blood pressure, persistent and throbbing headache, vertigo, palpitations, and visual disturbances; skin becomes flushed and sweaty, later cold and cyanotic; other symptoms include nausea, vomiting, diarrhea (sometimes), fainting, methemoglobinemia. Contact with eyes causes irritation. |
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