DISODIUM PHOSPHATE (DSP)

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Guaranteed Technical Specifications

Chemical formula: Na₂HPO₄.12H₂O
Molecular weight: 358.0
Standard executed: GB6008-85
Throughput: 10000t/a

Properties

White or colorless crystalline free flowing solid, efflorescent in air, easily soluble in water, but insoluble in alcohol, its water solution is slightly alkaline, relative density at 1.63, melting point at 34.6℃

Uses

Used as a fire-prevention agent for fabric, timber, and paper, also as water softening agent for boiler, food additive, buffering agent, solder, tanning agent, etc.

Packing and storage

Plastic-woven sack, net weight 25kg, 50kg or 1000kg. Store at a ventilated, dry place.

Other Parameters

序号 No	指标名称 Specifications	工业级 Industrial Grade	食品级 Food Grade
1	主含量（以Na2HPO4.12H2O计）%≥ Main contents	97.0	98.0
2	PH（1%水溶液） PH of 1% solution	9.0-9.4	9.0-9.4
3	氯化物（以cl计）% ≤ Chloride, as cl	0.05	0.014
4	硫酸盐（以S04计） %≤ Sulfate, as SO4	0.7	0.25
5	氟化物（以F计）%≤ Fluoride, as F	0.05	0.005
6	重金属（以Pb计）%≤ Heavy metals, as Pb		0.001
7	砷（以As计）%≤ Arsenic, as As		0.0003
8	水不溶物%≤ Water insoluble	0.10	0.10

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