sodium hypophosphite

The chemical formula of sodium hypophosphite is NaH2PO2. H2O, CAS10039-56-2 is monohydrate, CAS7681-53-0 is anhydrous, usually industrialized production and practical use is containing a water of crystallization. Sodium hypophosphite has the characteristics of good water solubility, good stability, high purity, not easy to decompose, etc. It is one of the main raw maerials for the production of halogen-free flame retardants, polycarboxylic acid water reducing agent, pharmaceutical intermediates and other products. It has important use in chemical nickel plating, water treatment, food preservation and other industries.

Basic information

English name: sodium hypophosphite; Sodium Hypophosphate; disodium hypophosphite; SHPP

CAS No. : 10039-56-2/7681-53-0

Executive Standard: HG/T3253-2000

Molecular formula:NaH2PO2. H2O

H.S code: 28351000.00

Molecular weight: 105.99

EINECSentry NO.: 231-669-9

Melting point: 100℃

Density: 1.388 g/cm3

Toxicity: LD50:4000mg/kg (rat oral); 4720mg/kg (rabbit transdermal)

LC50:9400mg/m3, 2 hours (for mouse inhalation)

Solubility: Insoluble in propanol, insoluble in ethanol, easily soluble in water

Stability: reducing agent, stable at room temperature, reacts violently with strong oxidants

Decomposition temperature: 200℃

Appearance: white transparent quicksand-like crystal

Product index

NaH2PO2≥101.0%

Na2HPO3≤0.50%

SO4≤100mg/kg

Cl≤100mg/kg

PH: 6.0-8.0

Ca≤50mg/kg

Fe≤5mg/kg

Pb≤5mg/kg

As≤5mg/kg

Cd≤5mg/kg

Cr≤5mg/kg

Precautions

1, sodium hypophosphite is easy to be damp, storage is mainly sealed moisture-proof.

2, belongs to the reducing agent, in the process of use can not be used with strong oxidants, metals, strong alkaline chemicals.

3, it is strictly prohibited to use sodium hypophosphite at high temperature, generally speaking, it is rapidly decomposed into Na4P2O7, NaPO3, PH3 and so on when it exceeds 200℃.

4, try to avoid two layer stacking, otherwise it is easy to cause false caking, of course, does not affect the use effect.

Packaging

Net weight 25Kg, 500Kg, 1000kg

The raw material of Sodium Hypophosphite is yellow phosphorus, so the price of yellow phosphorus has an important influence on it. Sodium Hypophosphite is a common chemical, not dangerous, and is transported as common goods in sea and land transportation.