POTASSIUM NITRITE
| Price | $1 |
| Package | 1KG |
| Min. Order: | 1KG |
| Supply Ability: | 100kg |
| Update Time: | 2019-12-31 |
Product Details
| Product Name: POTASSIUM NITRITE | CAS No.: 7758-09-0 |
| Min. Order: 1KG | Purity: 99% |
| Supply Ability: 100kg | Release date: 2019/12/31 |
| name: Cassie453 |
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Product Name:
POTASSIUM NITRITE
Synonyms:
POTASSIUM NITRITE REAGENT (ACS);POTASSIUMNITRITE,CRYSTAL,REAGENT,ACS;POTASSIUMNITRITE,CRYSTAL,TECHNICAL;Potassium nitrite, ACS, 96.0% min;Potassium Nitrite, Crystal, Reagent.;POTASSIUM NITRITE, 97%, FOR ANALYSIS;Potassium nitrite, for analysis ACS;Nitrous acid potassium
CAS:
7758-09-0
MF:
KNO2
MW:
85.1038
EINECS:
231-832-4
Product Categories:
Inorganics;Analytical Reagents for General Use;O-P, Puriss p.a. ACS;Puriss p.a. ACS;ACS GradeSynthetic Reagents;Essential Chemicals;Routine Reagents;Inorganic Salts;Potassium;Synthetic Reagents
Mol File:
7758-09-0.mol
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POTASSIUM NITRITE Chemical Properties
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Melting point
350 °C (dec.)(lit.)
Boiling point
explodes at 537℃ [HAW93]
density
1,92 g/cm3
storage temp.
Store at +5°C to +30°C.
solubility
water: soluble0.35 part
form
Solid
color
White to slightly yellow
Specific Gravity
1.915
PH
7-10 (50g/l, H2O, 20℃)
Water Solubility
Soluble in water, hot alcohol, liquid NH{3}Soluble in water, alcohol and ammonia.
Sensitive
Hygroscopic
Merck
14,7649
Stability:
Stability Stable, but strong oxidizer - contact with combustible material may lead to fire. Incompatible with strong reducing agents, strong acids, combustible materials, cyanides, ammonium salts.
CAS DataBase Reference
7758-09-0(CAS DataBase Reference)
EPA Substance Registry System
Potassium nitrite (7758-09-0)
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Safety Information
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Hazard Codes
O,T,N
Risk Statements
8-25-50
Safety Statements
45-61
RIDADR
UN 1488 5.1/PG 2
WGK Germany
2
RTECS
TT3750000
TSCA
Yes
HS Code
2834 10 00
HazardClass
5.1
PackingGroup
II
Toxicity
LD50 orally in rabbits: 108 mg anion/kg, Dollahite, Rowe, Southwest. Vet. 27, 246 (1974)
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MSDS Information
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Provider
Language
SigmaAldrich
English
ACROS
English
ALFA
English
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POTASSIUM NITRITE Usage And Synthesis
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Description
Potassium is the nitrite salt of potassium, appearing as a yellowish white crystalline solid. As a strong oxidizer, it may promote combustion and even explosion of other materials. In medical field, it is used for the treatment of angina pectoris. It is also applied during the manufacturing of heat transfer salts. Moreover, it is also a kind of food additive as a preservative. In addition, it can also be used as a paint and coating additive, analytic agents, corrosion inhibitors and anti-scaling agent. In chemical industry, it has the following applications: Manufacture Of Pigment Yellow 40, cinitapride and many other drugs, butadiene distillation, production of D-saccharic acid, dissolution of tungston, recovery of bromine and separation of cobalt from cobalt nickel solutions.
Reference
- https://pubchem.ncbi.nlm.nih.gov/compound/potassium_nitrite#section=InChI-Key
- https://en.wikipedia.org/wiki/Potassium_nitrite
- https://www.alfa.com/zh-cn/catalog/L13289/
- http://www.bgpgroup.biz/product/potassium-nitrate/
Chemical Properties
Potassium nitrite is a white to yellowish crystalline solid.
Chemical Properties
white to yellow crystals
Uses
In analytical chemistry.
Uses
Potassium Nitrite is a color fixative in meats which exists as white or yellowish granules or cylindrical sticks. it is very soluble in water. see nitrite.
Definition
potassium nitrite: A white orslightly yellow deliquescent solid,KNO2, soluble in water and insolublein ethanol; r.d. 1.91; m.p. 440°C; mayexplode at 600°C. Potassium nitrite isprepared by the reduction of potassiumnitrate. It reacts with cold dilutemineral acids to give nitrousacid and is also able to behave as areducing agent (if oxidized to the nitrate)or as an oxidizing agent (if reducedto nitrogen). It is used inorganic synthesis because of its partin diazotization, and in detecting thepresence of the amino groups in organiccompounds.
General Description
A yellowish white crystalline solid. 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. May explode under prolonged exposure to heat. Toxic oxides of nitrogen are produced in fires. Used to make other chemicals and in chemical analysis.
Air & Water Reactions
Water soluble.
Reactivity Profile
POTASSIUM NITRITE is an oxidizing agent. Mixtures with phosphorus, tin(II) chloride or other reducing agents may react explosively [Bretherick 1979 p. 108-109]. Contamination by ammonium compounds can initiate spontaneous decomposition. The 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 with an ammonium salt leads to a violent explosion [Von Schwartz 1918 p. 299]. A mixture with potassium cyanide may cause an explosion. When a little ammonium sulfate is added to fused POTASSIUM NITRITE, a vigorous reaction occurs attended by flame [Mellor 2:702. 1946-47].
Hazard
Fire and explosion risk when shocked or heated, or in contact with organic materials, strong oxidizing agent.
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.
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.
Safety Profile
Poison by ingestion. Human systemic effects: tinnitus, pulse rate increase, blood pressure lowering. Experimental teratogenic and reproductive effects. Nitrites have been implicated in an increased incidence of cancer. Mutation data reported. Flammable when exposed to heat or flame. A powerful oxidzing material. Slight explosion hazard when exposed to heat. It wdl explode at 1000°F. Explosive reaction with potassium amide + heat, potassium cyanide or other cyanide salts + heat. Violent reaction or ignition with ammonium salts (e.g., ammonium sulfate), boron. Disproportionates on heating in the absence of air forming KNO3 and K2O and evolving N2. Upon decomposition it emits toxic fumes of K2O. See also NITRITES.
Potential Exposure
Potassium nitrite is used in chemical analysis, as a food additive; in fertilizers; in medications as a vasodilator and as antidote for cyanide poisoning.
Shipping
UN1488 Potassium nitrite, Hazard Class: 5.1; Labels: 5.1-Oxidizer. UN1479 Oxidizing solid, n.o.s., Hazard Class: 5.1; Labels: 5.1-Oxidizer, Technical Name Required.
Purification Methods
A saturated solution at 0o is warmed and partially evaporated under vacuum. The crystals so obtained are filtered off from the warm solution. (This procedure is designed to reduce the level of nitrate impurity and is based on the effects of temperature on solubility. The solubility of KNO3 in water is 13g/100mL at 0o, 247g/100mL at 100o; for KNO2 the corresponding figures are 280g/100mL and 413g/100mL.) Alternatively, dissolve it in H2O and precipitate by adding of EtOH.
Incompatibilities
A strong oxidizer. Reacts violently with combustible and reducing materials. Heat above 530 ? C may cause explosion. Incompatible with cyanide salts; boron, ammonium sulfate; potassium amide; and acids. Decomposes on contact with even weak acids producing toxic nitrogen oxide fumes.
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POTASSIUM NITRITE Preparation Products And Raw materials
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Preparation Products
2-Nitrochlorobenzene-->3-IODO-2-NITROPYRIDINE-->3-IODOISONICOTINIC ACID
Raw materials
Potassium carbonate-->Potassium nitrate-->Potassium hydroxide solution
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Company Profile Introduction
Established in 2014,Career Henan Chemical Co. is a manufacturerspecializing in the sale of fine chemicals.
Mainly deals in the sales of:
Pharmaceutical intermediates
OLED intermediates：
Pharmaceutical intermediates;
OLED intermediates;
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China- Since: 2014-12-17
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