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A8549732

Phosphate buffer , pH2.0(25℃) , 10049-21-5

Synonym(s):
phosphate buffer;Monosodium phosphate;Sodium phosphate monobasic monohydrate;Sodium dihydrogen phosphate monohydrate;NaH?PO?

CAS NO.:10049-21-5

Empirical Formula: H4NaO5P

Molecular Weight: 137.992

MDL number: MFCD00081857

EINECS: 600-102-0

Pack Size Price Stock Quantity
500ML RMB175.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 100°C -H₂O
Boiling point: 399 °C
Density  2,04 g/cm3
storage temp.  Store at +5°C to +30°C.
solubility  H2O: 1 M, clear, colorless
form  Solid
color  White semi-transparentor
PH 4.1-4.5 (25℃, 50mg/mL in H2O)
Odor Odorless
PH Range 4.1 - 4.5 at 50 g/l at 25 °C
Water Solubility  Soluble in water; insoluble in ethanol, ether and chloroform.
Sensitive  Hygroscopic
λmax λ: 260 nm Amax: ≤0.03
λ: 280 nm Amax: ≤0.02
Merck  14,8660
InChIKey BBMHARZCALWXSL-UHFFFAOYSA-M
LogP -2.148 (est)
CAS DataBase Reference 10049-21-5(CAS DataBase Reference)
EPA Substance Registry System Monosodium phosphate monohydrate (10049-21-5)

Description and Uses

Sodium Phosphate Monobasic Monohydrate is a reagent with very high buffering capacity widely used in molecular biology, biochemistry and chromatography. it can be used as a buffer to adjust pH. In medicine, it is sometimes used as a stimulant laxative before certain operations and medical procedures. Sodium Phosphate Monobasic Monohydrate is often used in foods and in water treatment. It 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.
Monobasic sodium phosphate is used in baking powders, acid cleansers, electroplating, as a dry acidulant, and in treating boiler water.

Sodium Phosphate Monobasic Monohydrate is often used in foods and in water treatment. it can be used as a buffer to adjust pH. In medicine, it is sometimes used as a stimulant laxative before certain operations and medical procedures.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  Xi
Risk Statements  36/37/38-36
Safety Statements  26-36/37/39-36-39-24/25
WGK Germany  1
RTECS  WA1900000
3
TSCA  Yes
HS Code  2835 22 00
Toxicity LD50 orally in Rabbit: > 2000 mg/kg LD50 dermal Rabbit > 7940 mg/kg

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