PAR Indicator

PAR Indicator Specification

Other Names
PAR, 4-(o-Pyridylazo)resorcinol

Taste
Not determined

Refractive Rate
Not determined

Molecular Formula
C11H9N3O2

Solubility
Soluble in water and alcohol

Shape
Crystalline Powder

Ph Level
Shows color transition between pH 5.0 to 7.0

Poisonous
Yes

HS Code
38220090

Purity
>98%

Molecular Weight
215.21 g/mol

Smell
Odorless

Form
Solid

Density
Gram per cubic centimeter(g/cm3)

Melting Point
250-252C (decomposes)

Boiling point
Not available (decomposes before boiling)

Storage
Store in a cool, dry place; tightly closed container

Structural Formula
C6H4(OH)2-N=N-C5H4N

Classification
Chemical Indicator / Laboratory Reagent

Chemical Name
4-(2-Pyridylazo)resorcinol

CAS No
114-91-4

EINECS No
219-023-1

Grade
Reagent Grade

Standard
Laboratory Analytical

Type
Chemical Indicator

Usage
Colorimetric determination of metal ions

Main Material
4-(2-Pyridylazo)resorcinol (PAR)

Application
Biochemical research, indicator for oxidation-reduction reactions, analytical reagent

Non Toxic
Yes

Appearance
Red to dark red crystalline powder

Shelf Life
2 years under appropriate conditions

Packaging
25g, 100g, 500g HDPE bottle

Color Transition
Yellow-Orange to Red-Violet depending on metal binding

Stability
Stable under recommended storage conditions

Compatible Solvents
Water, ethanol

Sensitivity
Highly sensitive to divalent and trivalent metal ions

PAR Indicator Trade Information

Minimum Order Quantity
50 Kilograms

Payment Terms
Cash in Advance (CID)

Supply Ability
200 Kilograms Per Month

Delivery Time
2 Week

Sample Policy
Contact us for information regarding our sample policy

Main Export Market(s)
Asia

Main Domestic Market
All India

About PAR Indicator

PAR Indicator is a metal indicator and colorimetric reagent for heavy metal ions. It is also a useful indicator in complexometry and a reagent for the extraction and spectrophotometric determination of many transition compounds.

Sihauli Chemicals is one of the leading CategorlBiological Stains
Manufacturer and Exporter form India. Sihauli Chemicals SupplyCategoryBiological Stains
to Asia, Africa, Europe, North & South America and Oceania.

Our Global Presense:

Asia: Bangladesh, Burma (Myanmar), China, Hong Kong (UK), Indonesia, Iran, Israel, Japan, Jordan, Kampuchea (Cambodia), Kuwait, Laos, Lebanon, Macao (Portuguese), Malaysia, Maldives, Mongolia, Nepal, Oman, Philippines, Qatar, Saudi Arabia, Singapore, South Korea, Sri Lanka, Taiwan, Thailand, Turkey, United Arab Emirates, Vietnam.

Europe: Albania, Andorra, Austria, Belgium, Bulgaria, Cyprus, Czechoslovakia, Denmark, Finland, France, German Democratic Republic, Gibraltar, Greece, Hungary, Iceland, Ireland, Italy, Liechtenstein, Luxembourg, Malta, Monaco, Netherlands, Norway, Poland, Portugal, Romania, San Marino, Spain, Sweden, Switzerland, United Kingdom, U.S.S.R., Yugoslavia. Africa: Algeria, Angola, Egypt, Ethiopia, Gabon, Ghana, Kenya, Liberia, Libya, Madagascar, Mauritius, Morocco, Mozambique, Namibia, Nigeria, Reunion (France), Seychelles, Somalia, South Africa, Sudan, Tanzania, Tunisia, Uganda, Zambia, Zimbabwe.

North America: Bahamas, Barbados, Bermuda, British Virgin Islands, Canada, Costa Rica, Cuba, Dominica, El Salvador, Greenland (Denmark), Grenada, Guatemala, Haiti, Honduras, Jamaica, Martinique, Mexico, Montserrat, Nicaragua, Panama, Puerto Rico (USA), St. Vincent & the Grenadines, Trinidad & Tobago, USA, Virgin Islands.

South America: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Venezuela.

Oceania: Australia, New Zealand, Solomon Islands, Wallis & Futuna Islands (France).

Superior Sensitivity for Metal Ion Detection

PAR Indicator is especially valued for its precision in detecting trace amounts of divalent and trivalent metal ions. Its colorimetric response enables straightforward visual assessments in various analytical and research settings, making it indispensable in biochemical laboratories.

Versatile Solubility and Convenient Packaging

This indicator dissolves readily in both water and ethanol, simplifying its preparation for laboratory protocols. Available in 25g, 100g, and 500g HDPE bottles, PAR Indicator meets diverse volume requirements and ensures safe storage and long-term product stability.

Reliable Stability and Extended Shelf Life

PAR Indicator remains stable under recommended storage conditions-cool, dry, and tightly sealed environments. Its robust formulation supports a shelf life of up to two years, ensuring consistent performance for extended research projects and routine analytical work alike.

FAQ's of PAR Indicator:

Q: How is PAR Indicator typically used in laboratory applications?

A: PAR Indicator is primarily employed for the colorimetric determination of divalent and trivalent metal ions. It is dissolved in water or ethanol and added to samples, causing a noticeable color change depending on the presence and concentration of metal ions.

Q: What are the main benefits of using PAR Indicator in metal ion analysis?

A: The high sensitivity and clear color transition of PAR Indicator allow for accurate and rapid detection of metal ions, particularly in the pH range of 5.0 to 7.0. This makes it invaluable in both routine analytics and specialized biochemical research.

Q: When should PAR Indicator be stored and handled with particular care?

A: PAR Indicator should always be handled with care, as it is harmful if swallowed. It must be stored in a tightly closed HDPE bottle in a cool, dry place, away from heat and moisture, to maintain its stability and effectiveness over its two-year shelf life.

Q: Where can PAR Indicator be applied outside of routine metal ion detection?

A: Beyond standard analytical assays, PAR Indicator is used in oxidation-reduction reaction studies and as a laboratory reagent for a variety of biochemical and diagnostic tests. Its versatility makes it suitable for research, manufacturing, and quality control laboratories.

Q: What is the process for preparing PAR Indicator solutions?

A: PAR Indicator is soluble in water and ethanol. To prepare a solution, measure the required quantity of powder and dissolve it in the chosen solvent, typically under gentle stirring at room temperature. The solution should be used promptly or stored properly to maintain integrity.

Q: Is PAR Indicator safe to use, and are there any precautions necessary?

A: PAR Indicator is not classified as non-toxic and should be handled with caution. Always use protective equipment and avoid ingestion. Adhere strictly to laboratory safety guidelines when using or disposing of this chemical.

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