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NITROUS ACID

NITROUS ACID Structure
  • ₹0
  • Product name: NITROUS ACID
  • CAS: 7782-77-6
  • MF: HNO2
  • MW: 47.01
  • EINECS:231-963-7
  • MDL Number:MFCD01310438
  • Synonyms:Kyselina dusite;kyselinadusite ;Nitrosyl hydroxide;Nitrous acid, trans;NITROUS ACID;HNO2;HONO;nitrousaci
Properties Safety Information Description
Manufacturer Product number Product description Packaging Price Updated Buy

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)
EPA Substance Registry System :Nitrous acid (7782-77-6)

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger GHS hazard pictograms P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P310 Immediately call a POISON CENTER or doctor/physician.
P321 Specific treatment (see … on this label).
P363 Wash contaminated clothing before reuse.
P405 Store locked up.
P501 Dispose of contents/container to..…

Description

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”.

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Suppliers and manufacturers

ShanDong Look Chemical Co.,Ltd.
Shaanxi Didu New Materials Co. Ltd
Golden Pharma Co., Limited
Hu Bei Jiutian Bio-medical Technology CO.,Ltd Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. Shaanxi DIDU pharmaceutical and Chemical Co., Ltd Hubei yongkuo Technology Co., Ltd Hubei Shishun Biotechnology Co. Ltd QUALITY CONTROL SOLUTIONS LTD. Hebei Zhenjia new material Co., LTD