Molekula
Sodium hydrogen sulfide
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium hydrogen sulfide is a reactive inorganic compound used in chemical synthesis and industrial processes requiring sulfide ions. Its main documented applications include pulping in paper production, dehairing hides in leather processing, making sulfur-containing dyes, and serving as a flotation agent in ore processing. It appears as a solid and is highly corrosive and toxic. CAS: 16721-80-5, Molecular formula: HNaS, Molecular weight: 55.06 g/mol, Storage: Ambient, Signal word: Danger. Molekula supplies Sodium hydrogen sulfide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 g — £59.80 per pack ex VAT · £71.76 inc. VAT
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Yellow, orange or brown flakes |
| Assay | 70 - 72.5% |
| Na2CO3 | ≤ 1.0% |
| Iron (Fe) | ≤ 10ppm |
| Na2S | ≤ 2.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless rhombohedral crystals. |
| Odour | Odor of hydrogen sulfide |
| Melting Point | 350 °C |
| Boiling Point | 100 °C at 760 mmHg (approx.) |
| Vapour Pressure | 49 mmHg |
Source: PubChem CID 28015 (HSDB, CAMEO Chemicals, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 21729608 |
| CAS Number | 16721-80-5 |
| IUPAC Name | sodium sulfanide |
| EC Number | 240-778-0 |
| Molecular Formula | HNaS |
| Molecular Weight | 55.06 |
| Exact Mass | 55.9697 |
| SMILES | [Na+].[SH-] |
| InChIKey | HYHCSLBZRBJJCH-UHFFFAOYSA-M |
| InChI | InChI=1S/Na.H2S/h;1H2/q+1;/p-1 |
| PubChem CID | 28015 |
| UN Number | UN2949 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28301000 |
| Tariff Code | 2830100090 |
Safety & GHS
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Corrosive
GHS05
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Toxic
GHS06
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Hazardous to the Environment
GHS09
Hazard statements
- EUH031 Contact with acids liberates toxic gas
- EUH071 Corrosive to the respiratory tract
- H290 May be corrosive to metals
- H301 Toxic if swallowed
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H400 Very toxic to aquatic life
Precautionary statements
- P230 Keep wetted
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Hydrogen sodium sulfide
- NaHS
- Sodium bisulfide
- SODIUM HYDROSULFIDE
- Sodium mercaptan
- Sodium mercaptide
- sodium sulfanide
- Sodium sulfhydrate
- Sodium sulfide (Na(HS))
- Sodium sulfide (Na(SH))
Frequently asked questions
What is sodium hydrogen sulfide used for?
Sodium hydrogen sulfide is used in chemical synthesis, particularly in the production of sulfide compounds and in analytical chemistry as a reagent.
What is the chemical formula and molecular weight of sodium hydrogen sulfide?
The formula is HNaS and the molecular weight is 55.06 g/mol.
How should sodium hydrogen sulfide be stored?
It should be stored at ambient temperature, away from moisture and incompatible materials.
What grade of sodium hydrogen sulfide does Molekula supply?
Molekula supplies sodium hydrogen sulfide in technical grade.
Can Molekula supply sodium hydrogen sulfide in bulk?
Yes, Molekula can supply sodium hydrogen sulfide in bulk quantities upon request.
What documentation comes with a purchase of sodium hydrogen sulfide?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.