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10049-21-5 - Sodium dihydrogen phosphate monohydrate, ACS, 98.0-102.0% - Monosodium orthophosphate - Sodium phosphate, monobasic - 11591 - Alfa Aesar

11591 Sodium dihydrogen phosphate monohydrate, ACS, 98.0-102.0%

CAS Number
10049-21-5
Synonyms
Monosodium orthophosphate
Sodium phosphate, monobasic

Size Price ($) Quantity Availability
250g 35.90
1kg 94.70
5kg 307.00
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Sodium dihydrogen phosphate monohydrate, ACS, 98.0-102.0%

MDL
MFCD00149208
EINECS
231-449-2

Chemical Properties

Formula
NaH2PO4•H2O
Formula Weight
137.99 (119.98anhy)
Form
Crystalline
Melting point
100° -H{2}O
Sensitivity
Hygroscopic
Solubility
Highly soluble in water. Insoluble in ethanol, ether and chloroform.

Grade Specifications

Maximum level of impurities: Insoluble matter 0.01%, pH of a 5% solution 4.1-4.5 at 25°, Cl 5ppm, SO<sub>4</sub> 0.003%, Ca 0.005%, K 0.01%, As 0.5ppm, Heavy Metals (ICP-OES) 0.001%, Fe 0.001%

Applications

Sodium phosphate monobasic monohydrate is used as sequestrant, emulsifier, mordant in dyeing, reagent and buffer in foods and analytical chemistry. It is applied as a fireproofing agent and for weighting silk in tanning. It is employed in manufacturing of enamels, ceramics, detergents, boiler compounds, in soldering and brazing instead of borax.

Notes

It may be mildly corrosive to steel and aluminum. Highly hygroscopic nature.

Literature References

Weaver, C. L.; Li, H.; Luo, X.; Cui, X. T. A graphene oxide/conducting polymer nanocomposite for electrochemical dopamine detection: origin of improved sensitivity and specificity. J. Mater. Chem. B 2014, 2, 5209-5219.

Gull, M.; Zhou, M.; Fernández, F. M.; Pasek, M. A. Prebiotic Phosphate Ester Syntheses in a Deep Eutectic Solvent. J. Mol. Evol. 2014, 78 (2), 109-117.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,8660
Harmonized Tariff Code
2835.22
TSCA
Yes
RTECS
WA1900000

Recommended

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    Sodium pyrophosphate, 98%
  • 11592

    Sodium hydrogen phosphate heptahydrate, ACS, 98.0-102.0%
  • 11594

    Potassium dihydrogen phosphate, ACS, 99.0% min
  • 12314

    Sodium chloride, ACS, 99.0% min
  • 13437

    Sodium hydrogen phosphate, anhydrous, ACS, 99.0% min

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