Alias: phosphoric anhydride
Molecular formula: P₂O₅
Molecular weight: 141.94
IMDG classification and number: GB8.1 category 81063.
Uses:
Phosphorus pentoxide can be widely used in pharmaceutical and coating additive, printing and dyeing auxiliary, antistatic agent, etc.
Properties:
white crystal powder. Density 0.9g/cm3. Melting point 580-585℃. Vapor pressure 133.3Pa(384℃).
Storage and transportation:
It is corrosive. Packing: (Ⅱ) category. Keep in cool, dry and well-ventilated place.
Quality guarantee period:
30 days between May and September; 60 days between October and April; 6 months in closed drum.

Item	Index
	Technical grade(chemical pure)	Analytical pure	Specific grade
Content (P2O5)%	≥99%	≥99.5%	≥99.5%
Active R value	1.2	1.7	2.0
Reductant (P2O3)%	≤0.01	≤0.008	≤0.005
Clarity test	Qualified	Qualified	Qualified
Water insoluble matter%	≤0.02	≤0.01	≤0.01
Total nitrogen(N)%	≤0.01	≤0.002	≤0.001
Heavy metal (Pb)%	≤0.01	≤0.002	≤0.001
Iron content (Fe)%	≤0.01	≤0.002	≤0.001
Arsenic content(As)%	≤0.01	≤0.007	≤0.005

Packing:

Packaging form	Weight (net weight) (or upon customer's request)
Technical grade	10Kg bag
Reagent grade	5Kg bag, 500g/bottle
Export grade	200L steel and iron drum, 200Kg/drum; 20Kg, plastic woven bag; 200L steel and iron drum, 130Kg/drum; 25Kg/drum, fiber drum; 75L steel and iron drum, 70Kg/drum; 60L steel and iron drum, 60Kg/drum;
Pharmaceutical and food grade	20Kg bag, plastic bag; 75L steel and iron drum, 50Kg/drum