Ammonium tetrathiotungstate

Also known as: Ammonium tetrathiotungstate(VI), Ammonium thiotungstate, Diammonium tetrathiotungstate, Tungstate(2-), tetrathioxo-, diammonium, (T-4)-, Ammonium tetrakis(sulfido)tungstate, Ammonium tetrasulfidotungstate(2-)

Ammonium tetrathiotungstate (CAS 13862-78-7) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H8N2S4W and a molecular weight of 348.177 g/mol. Key property: a density of 2.71 g/mL at 25 °C(lit.). It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. It is listed by 3 suppliers, from 60.40 to 300.00 CNY. Record last updated Aug 21, 2026.

CAS No.: 13862-78-7
Jingsj CID: J-10159-6
Molecular Formula: H₈N₂S₄W
Molecular Weight: 348.177 g/mol
Category: Inorganic Chemicals
Last updated: 8/21/2026

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Supplier	Purity / Pack	Base Price	Unit Price	Origin
Jingheng Materials Made to Order	99.90% 500g	¥30,200.00	$9.04 /gBest ¥60.40/g CNY	CN China MOQ 500g	Visit Website
Jingkang In Stock	99.90% 500g	¥30,200.00	$9.04 /g ¥60.40/g CNY	CN China MOQ 500g	Visit Website
Jingkang In Stock	99.90% 100g	¥8,980.00	$13.44 /g ¥89.80/g CNY	CN China MOQ 100g	Visit Website
Jingheng Materials Made to Order	99.90% 25g	¥3,200.00	$19.15 /g ¥128.00/g CNY	CN China MOQ 25g	Visit Website
Jingkang In Stock	99.90% 25g	¥3,600.00	$21.55 /g ¥144.00/g CNY	CN China MOQ 25g	Visit Website
Kangwang Made to OrderPlatform-operated	99% 25g	¥3,800.00	$22.75 /g ¥152.00/g CNY	CN China MOQ 25g	View Supplier
Jingkang In Stock	99.90% 5g	¥1,080.00	$32.32 /g ¥216.00/g CNY	CN China MOQ 5g	Visit Website
Jingheng Materials Made to Order	99.90% 1g	¥220.00	$32.92 /g ¥220.00/g CNY	CN China MOQ 1g	Visit Website
Jingkang In Stock	99.90% 1g	¥300.00	$44.89 /g ¥300.00/g CNY	CN China MOQ 1g	Visit Website

Physicochemical Properties

Density	2.71 g/mL at 25 °C(lit.)
Exact Mass	347.907928
PSA	148.26000
LogP	2.70520

GHS Safety & Compliance

IrritantSignal word: Warning

H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of Ammonium tetrathiotungstate?

The CAS number of Ammonium tetrathiotungstate is 13862-78-7.

What are the molecular formula and molecular weight of Ammonium tetrathiotungstate?

Ammonium tetrathiotungstate has molecular formula H8N2S4W and molecular weight 348.177 g/mol.

Which suppliers offer Ammonium tetrathiotungstate?

3 supplier(s) listed; reference unit price ¥60.40–300.00 /g.

Is Ammonium tetrathiotungstate hazardous?

Ammonium tetrathiotungstate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Ammonium tetrathiotungstate (CAS 13862-78-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10159-6 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.