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Phosphoric Acid 85% AR Grade Reagent

Cas Number:7664-38-2
Formula: H3PO4
Molar Mass:98
EC Number:231-633-2

Quantity:
  • AR
  • LABOR
  • 216702104

Phosphoric Acid 85% AR Grade Reagent


Cas Number:7664-38-2

Formula: H3PO4

Molar Mass:98

EC Number:231-633-2


Physicochemical properties:

In the absence of water, it is an unstable orthorhombic crystal (melting point 42.35 ° C) or a colorless transparent viscous liquid. It is easy to be too cold to form a glass. Odorless. Sour. There will be a comfortable sour odour after proper dilution. 88% of the phosphoric acid is placed in a cold place for a long time, and crystals can often be formed (melting point 29.32 ° C, hemihydrate phosphoric acid). It becomes an anhydrate at 150 ° C and gradually changed to pyrophosphoric acid at about 200 ° C. It becomes metaphosphoric acid above 300 °C.


Usage:

Determination of chromium, nickel and vanadium in steel. Metal rust. A catalyst for producing ethanol. Non-protein nitrogen, urea nitrogen, total cholesterol and whole blood glucose are measured in serum.


Packing:

500ml/25L/200L






Item of Analysis

Standard

Assay,%

85.0 min

Hazen

25 max

Wields turns sour(as H+),mmol/g

0.0002 max

Chloride(Cl),%  

0.0003 max

Sulfate(SO4),%

0.003 max

Nitrate(NO3),%

0.0005 max

Arsenic(As),%

0.00005 max

Iron(Fe),%

0.002 max

Sodium(Na),%  

0.05 max

Potassium(K),%

0.005 max

Manganese(Mn),%

0.0002 max

Nickel(Ni),%

0.0005 max

Copper(Cu),%

0.0005 max

Zinc(Zn),%

0.001 max

cadmium(Cd),%

0.0005 max

Lead(Pb),%

0.001 max

Reducing substances(as H3PO3),%

0.01 max


Symbol 

Signal word 

Danger

Hazard statement

H290


H313


H314

Precautionary statements—Prevention

P234


P264


P280

Precautionary statements—Response

P301+P330+P331


P303+P361+P353


P304+P340+P310


P305+P351+P338+P310


P312


P363


P390

Precautionary statements—Storage

P405


P406

UN No.

1805

Hazard Class

8

Package Group

III

Flashpoint

No information

Boiling point

158°C

Melting point

40 °C



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