China best sale High Quality 1-Nitroso-2-Naphthol Best Price CAS 131-91-9

1. Basic information

Chinese names: 1-nitroso-2-naphthol, α - nitroso-β - naphthol, cobalt reagent, etc

English name: 1-Nitroso-2-naphthol

Molecular formula: C ₁₀ H ₇ NO ₂

Molecular weight: 173.17

EINECS number: 205-043-0

2. Physical and chemical properties

Appearance: Orange yellow crystalline flakes or edges, gradually darkening when exposed to air

Melting point: 106-108 ° C (dec.)

Boiling point: 357.6 ° C at 760mmHg

Flash point: 170.1 ° C

Density: 1.27g/cm ³

Solubility: Slightly soluble in water, soluble in organic solvents such as ethanol, benzene, ether, carbon disulfide, caustic alkali solution, trichloromethane, carbon tetrachloride, etc., slightly soluble in cold petroleum ether

Steam pressure: 1.31E-05mmHg at 25 ° C

Acidity coefficient: 7.87 ± 0.10 (predicted)

3. Purpose

Analysis and detection: It is an important reagent for determining cobalt, palladium, copper, and iron. It can react specifically with these metal ions to generate complexes with specific colors or properties, thereby achieving qualitative and quantitative analysis of these metals. It can also be used as a colorimetric reagent in analytical chemistry, especially for qualitative and quantitative analysis of substances such as iron, chlorine, and sulfur.

Organic synthesis: It can be used as an intermediate for the synthesis of other organic compounds. Through sulfonation, diazotization, and nitration, 6-nitro-2,1-hydroxydiazonaphthalene-4-sulfonic acid, also known as 6-nitro-1,2-diazoxynaphthalene-4-sulfonic acid, can be obtained. It is an intermediate for acidic media black dyes.

Packaging Details: 25 kg/bag or as your requirement.
Port: Tianjin/ Qingdao/ Shanghai, etc.
We can ship the samples by air.
Lead Time: Within 2~3days Shipment after receiving the advance payment or original L/C.

XI'AN YI HANG CHEMICAL CO.,LTD was founded in 2002, located in xian City, shannxi, China. We are the high-tech chemical enterprise which specialized in researching, manufacturing and trading for chemical raw materials ,our products widely used in paints, textile, rubber, leather, plastic and so on.

With many years development and operation,we have become the group company for chemical production,we have the owned factory for produce stable quality products with high performance, and the advanced lab to ensure the best quality of each batch products.

We have our strictly quality control in our production, and we have passed ISO9001:2015 Quality Management System Certification and ISO14001 Environment Management System Certification.

Our main products includes Titanium Dioxide, Lithopone, Iron Oxide series, Chrome Oxide Green, Zinc Oxide, Carbon Black, STPP, SHMP, Oxalic Acid, DOP, SLES, and so on.

Q1: Are you manufacturer or trading company?

A1:Manufacturer.

Q2: Can I get some sample?
A2: Yes, usually 10-25g sample for free.

Q3: Is there a discount?
A3: Of course, welcome to contact us. Price would be different based on different quantity. For bulk
quantity, we will have discount for you.

Q4: How long for production and delivery?
A4: Most products we have in stock, sent time:Within 1-3 business days after received payment. Customized products further discussed.

Q5: Do you accept ODM or OEM service?
A5: Yes,we accept ODM and OEM services, ranges: Soft gel, Capsule, Tablet, Sachet, Granule,Private Label service, etc. Please contact us to design your own brand product.

Q6: How to deliver the goods?
A6: ≤50kg ship by FedEx or DHL etc, ≥50kg ship by Air, ≥100kg can be shipped by Sea. If you have special request on delivery, please contact us.

Q7: How to start orders or make payments?
A7:There are two ways for you to confirm order:
1. Proforma invoice with our company bank details will be sent to you once the order confirmed by Email. Pls arrange payment by TT. Goods will be sent after received payment within 1-3 business days.
2. Trade assurance order will be drafted for you through ALIBABA. Pls confirm and pay through Alibaba. Goods will be sent after received payment within 1-3 business days.