Sodium hypochlorite pentahydrate
- CAS NO.：10022-70-5
- Empirical Formula: NaClO.5H2O
- Molecular Weight: 165.53
- MDL number: MFCD01941504
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-09-25 17:15:13
What is Sodium hypochlorite pentahydrate?
Description
Sodium hypochlorite pentahydrate crystals are an excellent alternative to traditional sodium hypochlorite solutions.
Chemical properties
Pale yellow crystals.
The Uses of Sodium hypochlorite pentahydrate
Individual sodium hypochlorite pentahydrate crystals (without nitro radicals) exhibit a strong oxidizing power, converting secondary alcohols to the corresponding ketones for industrial and laboratory use.
Definition
ChEBI:Sodium hypochlorite pentahydrate is a hydrate consisting of sodium hypochlorite and 5 molar equivalents of water.
Synthesis
The high concentration Sodium hypochlorite solution was prepared by passing chlorine gas into 45~48% Sodium hydroxide solution, filtering to remove the precipitated Sodium chloride, and cooling the filtrate to about 15℃, Sodium hypochlorite pentahydrate crystals were precipitated, and the product was obtained by centrifugal filtration.
Solubility in organics
Insoluble
Properties of Sodium hypochlorite pentahydrate
| Melting point: | 18°C |
| Density | 1.600 |
| Water Solubility | Completely soluble in water |
| solubility | Methanol (Slightly), Water (Slightly) |
| form | pale green orthorhombic crystals |
| color | Light yellow to Yellow to Orange |
| EPA Substance Registry System | Sodium hypochlorite pentahydrate (10022-70-5) |
Safety information for Sodium hypochlorite pentahydrate
| Signal word | Danger |
| Pictogram(s) |
 Flame Over Circle Oxidizers GHS03  Corrosion Corrosives GHS05  Environment GHS09 |
| GHS Hazard Statements |
H272:Oxidising liquids;Oxidising solids H290:Corrosive to Metals H314:Skin corrosion/irritation H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P220:Keep/Store away from clothing/…/combustible materials. P221:Take any precaution to avoid mixing with combustibles/… P234:Keep only in original container. P260:Do not breathe dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P363:Wash contaminated clothing before reuse. P390:Absorb spillage to prevent material damage. P391:Collect spillage. Hazardous to the aquatic environment P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P370+P378:In case of fire: Use … for extinction. P405:Store locked up. P406:Store in corrosive resistant/… container with a resistant inner liner. |
Computed Descriptors for Sodium hypochlorite pentahydrate
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