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Orthophosphoric Acid AR

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Orthophosphoric Acid AR Specification

Structural Formula
H-O-P(=O)(OH)2

HS Code
28092010

Refractive Rate
n20/D 1.433

Molecular Formula
H3PO4

Smell
Odorless

Molecular Weight
97.99 g/mol

Taste
Acidic

Boiling point
158 C (decomposes above this temperature)

Classification
Inorganic Acid

Inorganic Acid Types
Orthophosphoric Acid

Grade
AR (Analytical Reagent)

Purity
AR Grade, 85%

Application
Analytical Reagent, Laboratory Use, Chemical Synthesis

Appearance
Colorless, Clear, Syrupy Liquid

EINECS No
231-633-2

Other Names
Phosphoric Acid, Phosphoric(V) Acid

Usage
Laboratory Analytical Reagent, Pharmaceuticals, Food Industry (with caution)

Melting Point
42.35 C

Density
1.684 Gram per cubic centimeter(g/cm3)

Solubility
Miscible with Water

Raw Material
Elemental Phosphorus or Phosphate Rock

Decomposition Products
May emit toxic fumes of phosphorus oxides under fire conditions

Stability
Stable under recommended storage conditions

Shelf Life
24 months from manufacture

Acid Strength
Strong Acid

Regulatory Status
Complies with AR grade analytical standards

Packaging
Sealed HDPE Bottles or Glass Bottles

UN No.
1805

pH (1% solution)
1.5 2.0

Grade Standard
AR (Analytical Reagent)

Storage Conditions
Store tightly sealed in cool, dry place, away from alkalis and combustibles

Corrosiveness
Corrosive to Metals

Hazard Class
8 (Corrosive)

Manufacturing Process
Thermal or Wet Process

Transport Information
UN 1805, Class 8, PG III

About Orthophosphoric Acid AR

It is used as a rust converter, food additive, dental & orthopedic etchant, electrolyte, soldering flux and dispersing agent. We are a well acknowledged firm, engaged in meeting the growing needs of the market by offering Orthophosphoric Acid AR. To process this chemical we use superior grade compounds sourced from trusted vendors. It is used as catalyst in the hydration of alkenes to produce alcohols and predominantly ethanol. Clients can avail our Orthophosphoric Acid AR in different quantity packaging options.

Features:

Dispersing agent in detergents
Odorless and colorless liquid
Decomposes at 213^oC

Orthophosphoric Acid AR

H3PO4 M.W.	98
Minimum assay	85.00%
Wt. per ml. at 20oC	1.75g
Maximum Limits of Impurities :
Chloride (CI)	0.00%
Nitrate (NO3)	0.0005%
Silicate (SiO2)	0.025%
Sulphate (SO4)	0.00%
Arsenic (As)	0.0001%
Calcium (Ca)	0.004%
Copper (Cu)	0.00%
Iron (Fe)	0.0015%
Lead (Pb)	0.001%
Magnesium (Mg)	0.00%
Manganese (Mn)	0.00%
Potassium (K)	0.005%
Sodium (Na)	0.05%
Substaces reducing KMnO4	0.00%
Volatile acids (as CH3COOH)	0.00%
Cas No: 7664-38-2
Un No. 8/1805
TARIFF : 2809 20 10R : 34
S : 26-36/37/39-45
F : 12

Superior Quality for Analytical Applications

Our Orthophosphoric Acid AR is manufactured via rigorous thermal or wet processes to comply with AR grade analytical standards, ensuring the highest level of purity and performance for laboratory and research needs. Its stability under recommended storage conditions and accurate concentration make it the preferred choice for precise chemical analyses.

Safe Packaging and Thorough Compliance

Packaged in sealed HDPE or glass bottles, Orthophosphoric Acid AR is protected from contamination and complies with international transport and safety regulations (UN 1805, Class 8, PG III). Clear labeling and reliable containers improve handling safety and storage longevity, enabling secure use and transportation.

FAQ's of Orthophosphoric Acid AR:

Q: What is the recommended storage method for Orthophosphoric Acid AR?

A: Orthophosphoric Acid AR should be stored tightly sealed in a cool, dry area away from alkalis, combustibles, and incompatible materials. Proper storage ensures product stability and helps maintain its analytical purity for up to 24 months.

Q: How is Orthophosphoric Acid AR typically used in laboratories?

A: This acid is widely utilized as an analytical reagent in laboratories for titrations, sample preparation, chemical synthesis, and pH adjustment due to its high purity and strong acid strength.

Q: What safety precautions should be taken when handling Orthophosphoric Acid AR?

A: As a highly corrosive Class 8 substance, appropriate personal protective equipment such as gloves, goggles, and lab coats should be worn. Work in a well-ventilated area, avoid any skin or eye contact, and handle containers carefully to prevent spills or exposure.

Q: Where is Orthophosphoric Acid AR manufactured and supplied from?

A: Orthophosphoric Acid AR is produced by reputable dealers, exporters, manufacturers, retailers, suppliers, and traders across India, ensuring consistent availability and adherence to international AR grade standards.

Q: What are the benefits of using AR grade Orthophosphoric Acid over other grades?

A: AR (Analytical Reagent) grade Orthophosphoric Acid offers superior purity and strict quality control, making it suitable for critical laboratory procedures, precise chemical reactions, and applications where contamination risk must be minimized.

Q: When does Orthophosphoric Acid AR start to decompose and what are its decomposition products?

A: Orthophosphoric Acid AR remains stable until its boiling point (158C). Above this temperature or under fire conditions, it decomposes and may emit toxic fumes such as phosphorus oxides.

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