Home Categories NITROUSACID
LN7897846

NITROUSACID , 165μg/mL , 7782-77-6

CAS NO.:7782-77-6

Empirical Formula: HNO2

Molecular Weight: 47.01

MDL number: MFCD01310438

EINECS: 231-963-7

Pack Size Price Stock Quantity
500ml RMB280.00 In Stock
1L RMB448.00 In Stock
others     Enquire
Update time: 2022-07-08

PRODUCT Properties

Density  1.54±0.1 g/cm3(Predicted)
form  stable only in solution
pka pK (25°) 3.35
color  stable only in solution
PH 3.28(1 mM solution);2.67(10 mM solution);2.13(100 mM solution)

Description and Uses

Nitrous acid (molecular formula?HNO2) is a weak and monobasic acid known only in solution and in the form of nitrite salts. Nitrous acid rapidly decomposes into nitrogen oxide, nitric oxide and water when in solution:
2HNO2 ? NO2 + NO+H2O
It can also decompose into nitric acid and nitrous oxide and water.
4HNO2 ? 2HNO3 +N2O +H2O
Nitric acid (HNO3), also known as “aqua fortis” and “spirit of nitre”, is a highly corrosive and toxic strong acid that can cause severe burns. It is colorless when pure and a slight yellow when “glacial”. Older samples tend to acquire a yellow cast due to the accumulation of various oxides of nitrogen. If the solution contains more than 86% nitric acid, it is referred to as “fuming nitric acid”.

Formation of diazotizing compounds by reaction with primary aromatic amines, source of nitric oxide.

Safety

Symbol(GHS) 
GHS05
Signal word  Danger
Hazard statements  H314
Precautionary statements  P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501

RELATED PRODUCTS