Tetrasodium hexacyanoferrate

303.91

303.912476

237-081-9

3077

DTXSID3051337

Pale yellow

2837199090

142.74000

0.09818

Odorless yellow solid.

1.46 g/cm³

82°C -10H₂O

25.7ºC at 760 mmHg

H2O: soluble

Keep tightly closed in a cool place in a tightly closed container.

ODORLESS

SOLUBILITY (G/100 CC WATER): 31.85 G @ 20 °C, 156.5 G @ 98 °C; INDEX OF REFRACTION: 1.519, 1.530, 1.544; DENSITY 1.458 /DECAHYDRATE/

Water soluble.

Cyanides, Inorganic

SODIUM FERROCYANIDE is a coordination compound of iron. The cyanide ligands are tightly bound to the iron, so it is not as toxic as simple inorganic cyanide salts. However, this compound can release hydrogen cyanide gas upon reaction with acids.

Not flammable (USCG, 1999)

III

6.1

UN1588

21/22-32-52/53

36/37-61

Xn

Stable. Incompatible with strong oxidizing agents.

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

DO NOT MIX WITH HOT OR CONCENTRATED ACIDS & DO NOT EXPOSE SOLN TO SUNLIGHT FOR ANY LENGTH OF TIME TO AVOID GENERATION OF HYDROGEN CYANIDE.

Yellow prussiate of soda (sodium ferrocyanide decahydrate ...) may be safely used as an anticaking agent in salt for animal consumption at a level not to exceed 13 ppm. The additive contains a minimum of 99.0% by weight of sodium ferrocyanide decahydrate. /Sodium ferrocyanide decahydrate/|The food additive yellow prussiate of soda (sodium ferrocyanide decahydrate ...) contains a minimum of 99% by weight of sodium ferrocyanide decahydrate. The additive is used or intended for use as an anticaking agent in salt and as an adjuvant in the production of dendritic crystals of salt in an amount needed to produce its intended effect but not in excess of 13 ppm calculated as anhydrous sodium ferrocyanide. /Sodium ferrocyanide decahydrate/

Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: Some may burn but none ignite readily. Containers may explode when heated. Some may be transported hot. For UN3508, be aware of possible short circuiting as this product is transported in a charged state. (ERG, 2016)

|Danger|H300 (35%): Fatal if swallowed [Danger Acute toxicity, oral]|P260, P262, P264, P270, P271, P273, P280, P284, P301+P310, P301+P312, P302+P350, P302+P352, P304+P340, P310, P312, P320, P321, P322, P330, P361, P363, P391, P403+P233, P405, and P501|Aggregated GHS information provided by 278 companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: SMALL FIRE: Dry chemical, CO2, water spray or regular foam. LARGE FIRE: Water spray, fog or regular foam. Do not scatter spilled material with high-pressure water streams. Move containers from fire area if you can do it without risk. Dike fire-control water for later disposal. FIRE INVOLVING TANKS: Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. (ERG, 2016)

Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent dust cloud. Avoid inhalation of asbestos dust. SMALL DRY SPILL: With clean shovel, place material into clean, dry container and cover loosely; move containers from spill area. SMALL SPILL: Pick up with sand or other non-combustible absorbent material and place into containers for later disposal. LARGE SPILL: Dike far ahead of liquid spill for later disposal. Cover powder spill with plastic sheet or tarp to minimize spreading. Prevent entry into waterways, sewers, basements or confined areas. (ERG, 2016)

U.S. Bureau of Mines respirator for excessive dustiness; safety goggles. (USCG, 1999)|US BUREAU OF MINES RESPIRATOR FOR EXCESSIVE DUSTINESS; SAFETY GOGGLES

HEATED WASTE WATER CONTAINING IRON CYANIDE COMPLEX IS TREATED WITH SODIUM HYPOCHLORITE.

Waste ferrocyanides in streams and lakes should not exceed 2 ppm because irradiated soln become toxic to fish.

3(?). 3= MODERATELY TOXIC: PROBABLE ORAL LETHAL DOSE (HUMAN) 0.5-5 G/KG; BETWEEN 1 OZ & 1 PINT (OR LB) FOR 70 KG PERSON (150 LB). NO ADEQUATE TOXICITY DATA WERE LOCATED, BUT APPARENTLY THE SODIUM & POTASSIUM SALTS ARE COMPARATIVELY BENIGN. THEY ARE NOT DECOMP TO CYANIDE. /FERROCYANIDE SALTS/

RAPIDLY EXCRETED IN URINE, APPARENTLY WITHOUT METABOLIC ALTERATION.

None recorded. (USCG, 1999)

None is required except for ingestion of a huge dose, in which case the stomach should be emptied by inducing vomiting. (USCG, 1999)

SEVERAL G...HAVE BEEN SWALLOWED REPEATEDLY BY WOULD-BE SUICIDES WITHOUT APPARENT ILL-EFFECT.|BECAUSE OF STRONG CHEMICAL BONDAGE BETWEEEN THE CYANIDE GROUP & THE IRON, FERROCYANIDES HAVE A LOW ORDER OF TOXICITY. /FERROCYANIDES/|SUMMARY TOXICITY STATEMENT; ACUTE... FERROCYANIDES AS SUCH ARE OF LOW ORDER OF TOXICITY. LOW= CAUSES READILY REVERSIBLE TISSUE CHANGES WHICH DISAPPEAR AFTER EXPOSURE STOPS. CAUSES SOME DISCOMFORT. /FERROCYANIDES/

Grades: Technical, CP

Miscellaneous manufacturing|Ferrate(4-), hexakis(cyano-.kappa.C)-, sodium (1:4), (OC-6-11)-: ACTIVE|Addn of sodium ferrocyanide soln to slightly acidic soln of iron salts causes pptn of insol prussian blue (ferric ferrocyanide), Fe4[Fe(CN)6)]3. Sodium ferrocyanide forms gels with heavy metals in general.

Food additives

Food Additives -> ANTICAKING_AGENT;