ChemicalBook
Chinese Japanese Germany

POTASSIUM NITRITE

Description Reference
POTASSIUM NITRITE
POTASSIUM NITRITE
CAS No.
7758-09-0
Chemical Name:
POTASSIUM NITRITE
Synonyms
Kaliumnitrit;NPotassiuM nitri;POTASSIUM NITRITE;PotassiumNitriteFcc;potassiumnitrite(1:1);POTASSIUM NITRITE, ACS;Nitrous acid potassium;POTASSIUM NITRITE, 97+%;POTASSIUM NITRITE R. G.;Potassium nitrite, 96+%
CBNumber:
CB8694434
Molecular Formula:
KNO2
Formula Weight:
85.1038
MOL File:
7758-09-0.mol

POTASSIUM NITRITE Properties

Melting point:
350 °C (dec.)(lit.)
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
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)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
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
HazardClass  5.1
PackingGroup  II
Toxicity LD50 orally in rabbits: 108 mg anion/kg, Dollahite, Rowe, Southwest. Vet. 27, 246 (1974)
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H272 May intensify fire; oxidizer Oxidising liquids;Oxidising solids Category 2
Category 3
Danger
Warning
P210, P220, P221P280, P370+P378,P501
H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501
H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 1 Warning P273, P391, P501
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P220 Keep/Store away from clothing/…/combustible materials.
P221 Take any precaution to avoid mixing with combustibles/…
P273 Avoid release to the environment.
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P370+P378 In case of fire: Use … for extinction.
P405 Store locked up.

POTASSIUM NITRITE price More Price(10)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 12654 Potassium nitrite meets analytical specification of FCC, 97-100.5% 7758-09-0 1kg $150.9 2017-11-08 Buy
Sigma-Aldrich 1.05067 Potassium nitrite 7758-09-0 1EA $265 2017-11-08 Buy
Alfa Aesar 14245 Potassium nitrite, ACS, 96.0% min 7758-09-0 10g $21.3 2017-11-08 Buy
Alfa Aesar 14245 Potassium nitrite, ACS, 96.0% min 7758-09-0 100g $60.9 2017-11-08 Buy
Sigma-Aldrich 12654 Potassium nitrite meets analytical specification of FCC, 97-100.5% 7758-09-0 2.5kg $324 2017-11-08 Buy

POTASSIUM NITRITE Chemical Properties,Uses,Production

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

  1. https://pubchem.ncbi.nlm.nih.gov/compound/potassium_nitrite#section=InChI-Key
  2. https://en.wikipedia.org/wiki/Potassium_nitrite
  3. https://www.alfa.com/zh-cn/catalog/L13289/
  4. http://www.bgpgroup.biz/product/potassium-nitrate/

Chemical Properties

white to yellow crystals

Uses

In analytical chemistry.

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].

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.

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.

POTASSIUM NITRITE Preparation Products And Raw materials

Raw materials

Preparation Products


POTASSIUM NITRITE Suppliers

Global( 124)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
inquiry@dakenchem.com CHINA 22128 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20795 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32764 55
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com China 40399 62
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30308 84
Energy Chemical 021-58432009 / 400-005-6266
021-58436166-800 info@energy-chemical.com China 44192 61
Beijing Ouhe Technology Co., Ltd +86-10-4006331231;+86-10-51280831;+86-10-82967028
+86-10-82967029 sales@ouhechem.com China 12613 60
Adamas Reagent, Ltd. 400-600-9262
bxy@titansci.com China 14017 59
Chengdu XiYa Chemical Technology Co., Ltd. 4008-626-111
028-84752058 sale@xiyashiji.com China 9740 57

7758-09-0(POTASSIUM NITRITE)Related Search:


Copyright 2017 © ChemicalBook. All rights reserved