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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
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 |
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 |
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 |