Sodium tetrasulfide 90% maximum 5% water

H251 Self-heating; may catch fire; H290 May be corrosive to metals; H302 Harmful if swallowed; H312 Harmful in contact with skin; H314 Causes severe skin burns and eye damage; H319 Causes serious eye irritation; H332 Harmful if inhaled; H335 May cause respiratory irritation.

P234 Keep only in original container; P235+P410 Keep cool. Protect from sunlight; P260 Do not breathe dust/fume/gas/mist/vapors/spray; P280 Wear protective gloves/protective clothing/eye protection/face protection; P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell; P302+P352 IF ON SKIN: wash with plenty of soap and water; P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing; P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing; P332+P313 IF SKIN irritation occurs: Get medical advice/attention; P406 Store in corrosive resistant/ [ ] container with a resistant inner liner; P420 Store away from other materials.