Note: The amount of vanadium pentoxide is converted from the total vanadium content.
1.1.2 If the demand side has special requirements, it may negotiate to supply products with lower impurity content.
1.1.3 When requested by the acquirer, the actual measured data of other elements in the list may be negotiated.
1.2 Physical State Metallurgical vanadium pentoxide is delivered in sheet form, with a diameter of not more than 55 X 55 mm and a thickness of not more than 5 mm; the chemical industry uses a P2O2 machine to deliver natural powder after decomposition.
2 test methods
2.1 Samples Chemical analysis samples were taken according to the method specified in Appendix A.
2.2 Preparation of Sample Preparation Chemical analysis samples were prepared according to the method specified in Appendix B.
2.3 Chemical analysis The analysis of vanadium pentoxide is carried out according to the current analysis method of each production plant. If there is any objection, it shall be resolved through negotiation.
3 inspection rules
3.1 The inspection and acceptance of product quality shall be conducted by the technical supervisory department of the supplier, and the acquirer shall have the right to retest the product quality according to the regulations. If there is objection, it should be filed within 30 days after arrival.
3.2 Products of the same brand number can be classified as a batch of delivery, and the batch size is generally between 4 and 10 tons, or agreed by the supply and demand sides.
4 Packaging, Marking, Storage and Quality Certificates
4.1 The packaging products are packed in iron drums and a protective paint is applied to the inner wall of the drum. Net weight per barrel is generally not more than 250kg, or agreed upon by the supply and demand sides.
4.2 Marking, storage, transportation and quality certification The product marking, storage, transportation and quality certification shall meet the requirements of GB 3650-83 “General Requirements for Acceptance, Packaging, Storage, Transportation, Marking and Quality Certificate of Ferroalloyâ€.
Scope of application
Grade
Chemical composition , %
Physical state
V2O3
Si
Fe
P
S
As
Na2O K2O
V2O4
not less than
no greater than
metallurgy
V2O599
99.0
0.15
0.20
0.03
0.01
0.01
1.0
-
Flake
V2O598
98.0
0.25
0.30
0.05
0.03
0.02
1.5
-
Chemical industry
V2O597
97.0
0.25
0.30
0.05
0.01
0.02
1.0
2.5
Powder
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